1.Traditional Chinese Medicine Intervention in Sepsis Based on TLR4 Signaling Pathway: A Review
Jing YAN ; Sheng XIE ; Laian GE ; Guangyao WANG ; Zhu LIU ; Bingjie HAN ; Yaoxuan ZENG ; Jinchan PENG ; Jincheng QIAN ; Liqun LI
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(19):282-291
Sepsis is one of the common severe diseases caused by the dysregulated host response to infection, which seriously threatens the life and health of human beings all over the world. The incidence and mortality of the disease are extremely high, and it has always been an urgent problem to be solved in the field of acute and critical diseases. At present, anti-infection, fluid resuscitation, mechanical ventilation and other programs are most used in clinic to treat sepsis, but their poor prognosis and high cost and other issues remain to be resolved. Therefore, it is necessary to explore a new, efficient, safe and inexpensive drug and treatment model at this stage. The treatment of traditional Chinese medicine (TCM) is based on syndrome differentiation and holistic concept. It can effectively regulate the progression of sepsis, maintain the homeostasis of the body, and has fewer adverse reactions. It has achieved good clinical results. In recent years, a large number of studies have shown that TCM can reduce the inflammatory response by regulating the Toll-like receptor 4(TLR4) signaling pathway, thereby reducing the severity and mortality of sepsis patients. However, there is still a lack of systematic exposition of TCM regulating TLR4 signaling pathway in the treatment of sepsis. Therefore, this article summarizes the relationship between TLR4 signaling pathway and sepsis and the mechanism of TCM in the disease by searching and consulting relevant literature in recent years. It is found that some Chinese medicine monomers and active ingredients, Chinese medicine compounds and Chinese medicine preparations can effectively reduce systemic inflammatory response, repair organ damage and improve the prognosis of sepsis by inhibiting the activation of TLR4 signaling pathway. However, due to various limitations, some studies have directly focused on the differential expression and function of TLR4, ignoring the downstream molecular expression and phenotypic effects of TLR4. The alternative mechanism, relationship and specific molecular mechanism of the pathway are still unclear. There are problems such as unclear pharmacokinetics and unclear mechanism in the pro- and anti-inflammatory balance, which need to be further studied and explored in order to provide new ideas for the potential treatment and drug development for sepsis.
2.Analysis of clinical application of laparoscopic right posterior sectionectomy with the left side lying at 60° run-hug position
Changyan ZHU ; Yuqiu HU ; Deqing LI ; Jinxin DUAN ; Hongcao LIN ; Guangyao CHEN ; Quanbo ZHOU ; Zhiqiang FU
Chinese Journal of Hepatobiliary Surgery 2024;30(7):489-493
Objective:To explore the safety and efficacy of laparoscopic right posterior sectionectomy (LRPS) in the left side lying at 60° run-hug position.Methods:The clinical data of 12 cases underwent LRPS at the Department of Biliary and Pancreatic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University from August 2022 to June 2023 were analyzed. There were 9 males and 3 females, ranging in age from 26 to 76 years old. To evaluate the safety and effectiveness of the operation, operation time, intraoperative blood loss, the number and time of intraoperative hilar occlusion, postoperative drainage time, postoperative hospitalization time and postoperative complications were summarized.Results:Twelve operations were successfully completed under laparoscopy, and no patient was converted to laparotomy due to the difficulty in controlling intraoperative bleeding. 12 patients included 1 case of intrahepatic bile duct stones, 5 cases of primary liver cancer, 2 cases of hepatic hemangioma, 2 cases of focal nodular hyperplasia of the liver, 1 case of metastatic liver cancer, and 1 case of liver abscess. Operation time was (246.2±90.4) min, and the intraoperative blood loss was 125(22, 275) ml. The number of intraoperative hilar occlusion was 2.00(0.25, 2.75), and intraoperative hilar occlusion time was (27±22) min. Postoperative drainage time was (5.0±2.6) d, and the length of postoperative hospital stay was 6.0(4.3, 8.0) d. Intraoperative blood transfusion occurred in 1 patient, and postoperative abdominal effusion occurred in 1 patient. There was no postoperative death. All patients were recovered and discharged successfully.Conclusion:LRPS is safe and effective for the lesions in the right posterior hepatic region with the left side lying at 60° run-hug position.
3.Discussion on medication law of Shao Nianfang in the treatment of kidney deficiency and bone marrow loss in senile dementia based on ancient and modern medical case cloud platform
Minmin ZHU ; Hua WANG ; Fengzhen WU ; Mingchao WANG ; Zhengtong CAO ; Guangyao ZHENG
International Journal of Traditional Chinese Medicine 2023;45(4):481-486
Objective:To discuss the medication law in prescriptions of Professor Shao Nianfang in the treatment of kidney deficiency and bone marrow loss in senile dementia based on data mining.Methods:Medical cases of kidney deficiency and bone marrow loss in senile dementia in the Geriatric Hospital of Shandong University of Traditional Chinese Medicine from 1st Jan. 2014 to 31st Oct, 2019 were collected. Through hospital electronic medical records system prescription statistics, using ancient and modern medical case cloud platform (V1.2.4), medication frequency, property ans taste, efficacy analysis, correlation rule analysis, clustering analysis and complex network analysis were performed.Results:Totally 110 cases were included in medical cases, involving 238 kinds of Chinese materia medica. The top 10 Chinese materia medica with use frequency were Poria, Acori Tatarinowii Rhizoma, Corni Fructus, Dioscoreae Rhizoma, Rehmanniae Radix Praeparata, Alpiniae Oxyphyllae Fructus, Rehmanniae Radix, Astragali Radix, Chuanxiong Rhizoma, Atractylodis Macrocephalae Rhizoma; the properties were mainly mild, warm slight cold, and cold; the tastes were mainly sweet, bitter, pungent, and light; the meridians were mainly spleen, liver, lung and kidney meridians; the efficacy was clearing dampness and promoting diuresis, clearing heat and promoting blood circulation, calming mind, clearing heat and detoxification, reducing dampness and promote appetizing, tonifying spleen; the association analysis found 15 groups of drug combinations used more than 25 times, they were: Corni Fructus and Poria, Corni Fructus and Dioscoreae Rhizoma, Dioscoreae Rhizoma and Corni Fructus, Rehmanniae Radix Praeparata and Corni Fructus, Dioscoreae Rhizoma and Poria, Astragali Radix and Poria, Alismatis Rhizoma and Poria, Moutan Cortex and Poria, Rehmanniae Radix Praeparata and Poria, Rehmanniae Radix and Poria, Polygalae Radix and Acori Tatarinowii Rhizoma, Moutan Cortex and Corni Fructus, Moutan Cortex and Dioscoreae Rhizoma, Alismatis Rhizoma and Corni Fructus, Alismatis Rhizoma and Dioscoreae Rhizoma; clustering analysis identified four groups of new prescriptions, the first group: Poria, Rehmanniae Radix, Rehmanniae Radix Praeparata, Alismatis Rhizoma, Moutan Cortex, Corni Fructus, Dioscoreae Rhizoma; the second group: Acori Tatarinowii Rhizoma, Cistanches Herba, Morindae Officinalis Radix; the third group: Alpiniae Oxyphyllae Fructus, Chuanxiong Rhizoma, Glycyrrhizae Radix et Rhizoma Praeparata Cum Melle; the fourth group: Atractylodis Macrocephalae Rhizoma, Codonopsis Radix, Astragali Radix, Angelicae Sinensis Radix; the results of complex network analysis showed that the core prescription was modified Liuwei Dihuang Pills. Conclusion:This study found that in view of kidney deficiency and bone marrow loss in senile dementia, Professor Shao pays attention to strengthening the healthy qi, and focuses on tonifying deficiency, taking into account the methods of clearing dampness, clearing heat, detoxification, removing blood stasis and restoring consciousness. The four new prescriptions found in the study can provide a reference for modified medication for syndrome differentiation.
4.Therapeutic effect analysis of orthopedic robot assisted treatment of elderly pelvic fractures
Linlin YAO ; Minglei ZHANG ; Tongtong ZHU ; Hualong LIU ; Quanquan XU ; Haiming ZHENG ; Guangyao LIU
Chinese Journal of Orthopaedics 2023;43(19):1277-1284
Objective:To investigate the surgical techniques and advantages of Ti-Robot-assisted surgery for pelvic fragility fractures in the elderly.Methods:A retrospective review was performed on geriatric patients presenting with pelvic fractures at the Orthopedics Department of Trauma, China-Japan Union Hospital of Jilin University from September 2019 to December 2022. Minimally invasive procedures were executed with the assistance of the Ti-Robot, and the therapeutic outcomes were appraised. The cohort comprised 24 patients aged ≥60 years, consisting of 6 men and 18 women, with a mean age of 66.1±4.9 years (range, 60-77 years). Fourteen patients sustained high-energy trauma, while 10 encountered low-energy trauma. Fracture classification utilized the FFP system proposed by Rommens and Hofmann. The cohort included 20 patients with FFP II fractures (5 males, 15 females; 4 of type IIa, 12 of type IIb, and 4 of type IIc) and 4 patients with FFP III fractures (1 male, 3 females; all type IIIa). The Matta standard assessment scale gauged fracture reduction, while the Gras classification, with Ti-Robot assistance, assessed screw positioning. Postoperative functionality was holistically assessed based on the Majeed quantitative evaluation system, focusing on pain intensity, sitting, standing, walking, and daily activities. The visual analogue scale (VAS) gauged pain levels in patients with type II fractures, pre and 72 hours post-surgery.Results:According to the Matta standard assessment scale, postoperative fracture reduction quality in 24 elderly patients showed 18 as excellent, 4 as good, and 2 as fair, yielding a 92% (22/24) combined excellent and good rate. Based on the Gras classification, 52 screws were rated as excellent and 7 as good, achieving a 100% positive rate. Utilizing Majeed's modified pelvic fracture evaluation system, postoperative functional recuperation revealed 19 patients as excellent and 5 as good. There were no reports of severe internal disease exacerbations, neurological manifestations, infections, or intraoperative extensive hemorrhaging, with all patients remaining stable. Fractures exhibited robust healing during follow-ups, averaging a recovery time of 3.5±0.7 months (range, 3-5 months). The VAS for 20 patients with FFP type II fractures decreased from 6.3±2.0 pre-surgery to 4.1±1.4 post-surgery ( t=6.14, P=0.003), signifying substantial pain mitigation. Conclusion:In the elderly with pelvic fragility fractures, particularly type II, securing with channel screws is viable. The Ti-Robot-assisted minimally invasive approach is advocated due to its potential to diminish surgical risks and expedite postoperative recuperation.
5.Application of compound flap transfer in tubularized incised plate urethroplasty
Yuan LI ; Dongchuan FENG ; Xiaoyu ZHU ; Jinchao GONG ; Tao HAN ; Guangyao SUN ; Xilun ZHANG ; Dianhe HU ; Suoyou SHA
Chinese Journal of Plastic Surgery 2023;39(11):1229-1235
Objective:To investigate the application effect of the compound flap transfer in tubularized incised plate (TIP) urethroplasty.Methods:Children with hypospadias who received TIP in the Department of Pediatric Urology, the Affiliated Xuzhou Children’s Hospital of Xuzhou Medical University from January 2018 to March 2022 were prospectively divided into compound flap transfer group (group A) and traditional TIP group (group B) by random number method. Group A was treated with TIP modified by compound flap transfer, and group B was treated with traditional TIP covered with fascia.The improvement of the compound flap transfer for TIP operation is mainly reflected in the multi-layer cover of the new urethra and the free skin embedded in the incision of the penile head. According to the intention-to-treat (ITT) principle, the final full analysis set (FAS) includes both group A and group B. Some patients were excluded from the analysis of the primary endpoint events due to reasons such as loss to follow-up or treatment group switch. Additionally, the final per-protocol set (PPS) consisting of group A and group B, which adheres to the study protocol, is subjected to statistical analysis.Independent sample t-test or Wilcoxon rank sum test was used for average age, the width of the penile head, degree of chordee, length of neourethra, and operative time. The classification of hypospadias, proportion of dorsal tunica albuginea plication, and incidence of postoperative complications were compared using the Chi-square test or Fisher’s exact test, P < 0.05 was considered statistically significant. Results:According to ITT principles, 50 children were included in FAS group A, ranging in age from 8 months to 15 years and 2 months, with an average age of 4 years. Group B included 50 children, ranging in age from 10 months to 14 years and 9 months, with an average age of 4 years and 1 month. Thirty-seven children in PPS group A were included, ranging in age from 1 year 2 months to 12 years 1 month, with an average age of 4 years. Group B consisted of 41 children, ranging in age from 1 year 2 months to 11 years 9 months, with an average age of 4 years 2 months. Statistical analysis showed that no matter FAS set or PPS, there were no statistically significant differences in the mean age, hypospadias type, average penile head width, average penile subcurvature number, number of dorsal tunica albuginea plication, and the average length of plastic neourethra between group A and group B ( P > 0.05). The average operative time of group A was higher than that of group B. The difference was statistically significant ( P < 0.05). The postoperative follow-up was 3 to 48 months, with an average follow-up of 2 years and 3 months. The complication rate of group A was lower than that of group B [10.81% (4/37) vs 29.27% (12/41)], and the difference was statistically significant ( P< 0.05). Urethral fistula occurred in 3 cases (8.11%), respectively and 6 cases (14.63%) in the two groups, the difference was not statistically significant ( P>0.05); urethral stricture occurred in 1 case (2.70%) and 5 cases (12.20%) respectively, the difference was not statistically significant ( P>0.05), There were 0 case and 1 case (2.44%) of urethral orifice descending or urethral dehiscence respectively, and the difference was not statistically significant ( P> 0.05). Conclusion:TIP with an improved compound flap transfer can reduce the overall postoperative complication rate and is worthy of promotion.
6.Application of compound flap transfer in tubularized incised plate urethroplasty
Yuan LI ; Dongchuan FENG ; Xiaoyu ZHU ; Jinchao GONG ; Tao HAN ; Guangyao SUN ; Xilun ZHANG ; Dianhe HU ; Suoyou SHA
Chinese Journal of Plastic Surgery 2023;39(11):1229-1235
Objective:To investigate the application effect of the compound flap transfer in tubularized incised plate (TIP) urethroplasty.Methods:Children with hypospadias who received TIP in the Department of Pediatric Urology, the Affiliated Xuzhou Children’s Hospital of Xuzhou Medical University from January 2018 to March 2022 were prospectively divided into compound flap transfer group (group A) and traditional TIP group (group B) by random number method. Group A was treated with TIP modified by compound flap transfer, and group B was treated with traditional TIP covered with fascia.The improvement of the compound flap transfer for TIP operation is mainly reflected in the multi-layer cover of the new urethra and the free skin embedded in the incision of the penile head. According to the intention-to-treat (ITT) principle, the final full analysis set (FAS) includes both group A and group B. Some patients were excluded from the analysis of the primary endpoint events due to reasons such as loss to follow-up or treatment group switch. Additionally, the final per-protocol set (PPS) consisting of group A and group B, which adheres to the study protocol, is subjected to statistical analysis.Independent sample t-test or Wilcoxon rank sum test was used for average age, the width of the penile head, degree of chordee, length of neourethra, and operative time. The classification of hypospadias, proportion of dorsal tunica albuginea plication, and incidence of postoperative complications were compared using the Chi-square test or Fisher’s exact test, P < 0.05 was considered statistically significant. Results:According to ITT principles, 50 children were included in FAS group A, ranging in age from 8 months to 15 years and 2 months, with an average age of 4 years. Group B included 50 children, ranging in age from 10 months to 14 years and 9 months, with an average age of 4 years and 1 month. Thirty-seven children in PPS group A were included, ranging in age from 1 year 2 months to 12 years 1 month, with an average age of 4 years. Group B consisted of 41 children, ranging in age from 1 year 2 months to 11 years 9 months, with an average age of 4 years 2 months. Statistical analysis showed that no matter FAS set or PPS, there were no statistically significant differences in the mean age, hypospadias type, average penile head width, average penile subcurvature number, number of dorsal tunica albuginea plication, and the average length of plastic neourethra between group A and group B ( P > 0.05). The average operative time of group A was higher than that of group B. The difference was statistically significant ( P < 0.05). The postoperative follow-up was 3 to 48 months, with an average follow-up of 2 years and 3 months. The complication rate of group A was lower than that of group B [10.81% (4/37) vs 29.27% (12/41)], and the difference was statistically significant ( P< 0.05). Urethral fistula occurred in 3 cases (8.11%), respectively and 6 cases (14.63%) in the two groups, the difference was not statistically significant ( P>0.05); urethral stricture occurred in 1 case (2.70%) and 5 cases (12.20%) respectively, the difference was not statistically significant ( P>0.05), There were 0 case and 1 case (2.44%) of urethral orifice descending or urethral dehiscence respectively, and the difference was not statistically significant ( P> 0.05). Conclusion:TIP with an improved compound flap transfer can reduce the overall postoperative complication rate and is worthy of promotion.
7.Comparison of effectiveness between modified Sugita and modified Shiraki in the treatment of severely concealed penis in children
Yuan LI ; Dongchuan FENG ; Xiaoyu ZHU ; Jinchao GONG ; Tao HAN ; Guangyao SUN ; Xilun ZHANG
Chinese Journal of Applied Clinical Pediatrics 2022;37(18):1403-1406
Objective:To compare the effectiveness of modified Sugita and modified Shiraki in the treatment of severely concealed penis in children.Methods:A retrospective study was carried out on 72 children with congenital severely concealed penis, who were treated in the Department of Urology, Xuzhou Children′s Hospital Affiliated to Xuzhou Medical University from September 2016 to June 2021.Among them, 32 cases were treated with modified Sugita (modified Sugita group) and 40 cases were treated with modified Shiraki (modified Shiraki group). There was no significant difference in the age, body mass and body mass index between the 2 groups (all P>0.05). The operation time, increased length of the exposed part of the penis after operation, score of parental satisfaction half a year after operation (obtained by using the Likert scale) and postoperative complications (classified according to the modified Clavien-Dindo classification) were compared between the 2 groups.Measurement data comparison between groups were performed by t test, counting data were analyzed by Chi- square test. Results:The operative time of the modified Sugita group and the modified Shiraki group were (50.00±8.03) min and (40.30±9.27) min, respectively.The operative time was significantly different between 2 groups ( t=4.107, P<0.05). The increased length of the exposed part of the penis after operation was (1.80±0.30) cm in the modified Sugita group and (1.90±0.33) cm in the modified Shiraki group, and no significant difference was found between the 2 groups ( P>0.05). Six months after operation, the parental satisfaction score was (4.60±0.56) points in the modified Sugita group and (4.60±0.59) points in the modified Shiraki group.There was no significant difference in the parental satisfaction score between 2 groups ( P>0.05). In 72 cases, only 5 cases had grade Ⅰ complications.Postoperative complications were also not significantly different between the 2 groups ( P>0.05). Conclusions:After treating severely concealed penis in children with modified Sugita and modified Shiraki, the penis has a good appearance.These two surgeries have high parental satisfaction and low complications.They are easy to implement in clinical practice.The operation time of modified Shiraki is shorter than that of modified Sugita.
8.A modified scrotoplasty for treating webbed penis in children
Yuan LI ; Xiaoyu ZHU ; Dongchuan FENG ; Jinchao GONG ; Tao HAN ; Guangyao SUN ; Xilun ZHANG
Chinese Journal of Applied Clinical Pediatrics 2021;36(11):844-847
Objective:To introduce the application of a modified scrotoplasty for children with webbed penis.Methods:Retrospective study was carried out.The treatment results of 58 children with webbed penis in Department of Urology, the Affiliated Xuzhou Children′s Hospital of Xuzhou Medical University from June 2012 to April 2018 were analyzed.A total of 26 children with webbed penis and phimosis were treated with circumcision combined with modified scrotoplasty as modified scrotoplasty group, and 32 children with webbed penis and phimosis were treated with V-Y scrotoplasty as V-Y scrotoplasty group.The curative effect of webbed penis was compared between the two groups.Results:The operation time of V-Y scrotoplasty group and modified scrotoplasty group were (26.0±2.4) min and (28.0±3.2) min; the increased penis length in the horizontal position in the two groups were (0.30±0.06) cm and (0.40±0.06) cm; the score of parents′ satisfaction were (3.80±0.47) scores and (4.70±0.56) scores, there were significant differences in the average operation time, the increased penis length in the horizontal position and the score of parents′ satisfaction between the two groups ( t=2.703, 6.061, 6.652; all P<0.05). There was no significant difference in postoperative complications between the two groups ( P>0.05). Conclusions:Circumcision combined with modified scrotoplasty is used to repair webbed penis, which results in a good postoperative appearance, high parent satisfaction and easy clinical implementation.
9.Significance of serum resistin level in the diagnosis of juvenile idiopathic arthritis
Guangyao ZHU ; Sheng HAO ; Min XIA ; Weixun HE ; Guimei GUO
Chinese Journal of Applied Clinical Pediatrics 2020;35(14):1085-1088
Objective:To investigate the clinical significance of serum resistin in juvenile idiopathic arthritis(JIA) patients.Methods:A prospective observational study was performed and 32 cases of patients with systemic onset JIA(SOJIA)(SOJIA group) in children admitted to the nephrorheumatology and outpatient were enrolled at Children′s Hospital of Shanghai between October 2013 and September 2015, 52 cases of other types(N-SOJIA group), and 33 cases of other rheumatic diseases(other rheumatic diseases group), 30 cases of children undergoing health checkups in the child health outpatient clinic(healthy control group)were involved as well.Serum resistin levels were measured by enzyme-linked immunosorbent assay(ELISA), and comprehensive analysis was carried out with clinical data and related laboratory findings.The basic data of gender, age and body mass index(BMI) of each group were collected, and the duration of disease in children in JIA group, rheumatoid factor, antinuclear antibody, white blood cell, hemoglobin, platelet, C reacting protein(CRP), erythrocyte sedimentation rate(ESR), clinical manifestations and current drug use were collected.Using the receiver operating characteristic(ROC)curve analysis of sensitivity and specificity resistin levels in diagnostic systemic juvenile idiopathic arthritis.Results:There was no statistically significant difference in the age, gender and BMI of children in SOJIA group, N-SOJIA group, other rheumatism group and healthy control group.Children in the SOJIA group and the N-SOJIA group had arthritis in clinical manifestations.Fever and rash were more common in the SOJIA group, and the difference was statistically significant ( P<0.01). Laboratory results showed that the sedimentation rates of white blood cells, CRP, and red blood cells were in the SOJIA group was significantly elevated.The antinuclear antibody was mainly found in the N-SOJIA group with a higher positive rate ( P<0.05). The mean serum resistin in the SOJIA group [(17.98±13.78) mg/L] was higher compared to the healthy control group [(1.84±1.66) mg/L], other rheumatic diseases group [(8.00±6.28) mg/L]and the N-SOJIA group [(9.86±6.11) mg/L], the differences were statistically significant ( F=21.625, P<0.01). Resistin was positively correlated with white blood cells and CRP( r=0.532, 0.351, all P<0.05), and had no correlation with BMI, hemoglobin, platelets, and ESR( r=0.059, -0.176, 0.152, 0.203, all P>0.05). Based on serum resistin≥5.55 mg/L as the positive threshold value, the area under ROC curve was 0.802, and the sensitivity and specificity in diagnosis of SOJIA was 96.9% and 49.6%, respectively. Conclusions:Serum resistin is increased in patients with JIA, especially in SOJIA increased significantly; Serum resistin can be used for the diagnosis of SOJIA, and ≥5.55 mg/L can be a suitable cut-off level.
10.CT features of intrapulmonary lymph nodes: a comparative study with pathology
Guangyao WU ; Liping TANG ; Ruiping ZHU ; Jianlin WU
Chinese Journal of Radiology 2018;52(7):513-517
Objective To explore the CT features and pathology of intrapulmonary lymph nodes (IPLNs), so as to improve the understanding and diagnosis of IPLNs. Methods A total of 38 patients (49 IPLNs) who were confirmed by the surgery and pathology were retrospectively analyzed, including 21 males and 17 females with a mean age of (56±8) years. All the patients underwent MSCT scan and 1.0 mm thin layer reconstruction before surgery. Double-blind method was used to analyze CT signs and the corresponding histopathological changes were compared. Results (1) Location: all IPLNs were located below the level of tracheal carina with 17 were on the left lung, and 32 were on the right lung. (2) Shape: 34 IPLNs were round, 15 were triangular or prism and so on. (3) Size: the maximum diameter of IPLNs ranged from 0.26 to 1.28 cm (0.66±0.23 cm), of which 45 cases were≤1.0 cm. (4) Quantity: 28 IPLNs were solitary and 10 were multiple. (5) Density: All 48 IPLNs were solid nodules with a median CT value of 43 HU (range from 19 to 106 HU), and there were no calcification, vacuoles and air bronchial signs were showed. (6) Margin and pleura: all the 48 IPLNs boundaries were clear and smooth, and 45 pieces were less than 1.0 cm from the pleura, of which 20 were close to the pleura or inter-lobar fissure. (7) Other: no"satellite focal", pleural depression syndrome, and vascular bundle sign were showed;22 peripheral fine lines of IPLNs were visible. (8) Pathology: IPLNs were dark brown or gray-black nodules with well-defined borders, coated, tough, hard, and carbon deposition could be seen in most cases. Conclusion IPLNs are benign nodules in the lung, which have certain CT features and typical pathological changes. Based on the CT performance and characteristics, it is helpful to make correct diagnosis of IPLNs before operation.

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