Objective: To investigate the clinicopathological features and possible mechanisms of burned-out testicular germ cell tumors. Methods: The clinical and imaging data, histology and immunophenotypic characteristics of three cases of burned-out testicular germ cell tumors diagnosed at the Ruijin Hospital, Medical College of the Shanghai Jiaotong University, from 2016 to 2020 were retrospectively analyzed. The relevant literature was reviewed. Results: The mean age of the three patients was 32 years. Case 1 had an elevated preoperative alpha-fetoprotein level (810.18 μg/L) and underwent "radical pancreaticoduodenectomy and retroperitoneal lesion resection" for a retroperitoneal mass. Postoperative pathology showed embryonal carcinoma, which needed to exclude gonadal metastasis. Color Doppler ultrasound showed a solid mass of the right testis, with hypoechoic lesion and scattered calcification in some areas. Case 2 was a "right supraclavicular lymph node biopsy specimen." Chest X-ray showed multiple metastases in both lungs. The biopsy showed metastatic embryonic carcinoma and bilateral testicular color Doppler ultrasound revealed abnormal calcifications in the right testicle. Case 3 showed a cystic mass of the right testis with calcification and solid areas. All 3 patients underwent radical right orchiectomy. Grossly, borders of the testicular scar areas were well defined. Cross sectioning of the tumors showed a gray-brown cut surface and single focus or multiple foci of the tumor. The tumor maximum diameter was 0.6-1.5 cm. Microscopically, lymphocytes, plasma cells infiltration, tubular hyalinization, clustered vascular hyperplasia and hemosiderin laden macrophages were found in the scar. Atrophic and sclerotic seminiferous tubules, proliferation of clustered Leydig cells and small or coarse granular calcifications in seminiferous tubules were present around the scar. Seminoma and germ cell neoplasia in situ were seen in case 1, germ cell neoplasia in situ was seen in case 2 and germ cells with atypical hyperplasia were seen in case 3. Immunohistochemistry showed that embryonic carcinoma expressed SALL4, CKpan(AE1/AE3) and CD30, seminoma and germ cell tumor in situ expressed OCT3/4, SALL4 and CD117, and spermatogenic cells with atypical hyperplasia expressed CD99 and SALL4. The Ki-67 positive index was about 20%, while OCT3/4 and CD117 were both negative. Conclusions: Burned-out testicular germ cell tumors are rare. The possibility of gonad testicular metastasis should be considered first for extragonadal germ cell tumor. If fibrous scar is found in testis, it must be determined whether it is a burned-out testicular germ cell tumor. The burned-out mechanisms may be related to the microenvironment of tumor immune-mediated and local ischemic injury.
Male ; Humans ; Adult ; Seminoma/secondary* ; Cicatrix/pathology* ; Hyperplasia ; Retrospective Studies ; China ; Testicular Neoplasms/pathology* ; Neoplasms, Germ Cell and Embryonal/surgery* ; Calcinosis ; Carcinoma ; Tumor Microenvironment

Objective To observe the effect of calcified lymph nodes on video-assisted thoracoscopic surgery (VATS) lobectomy in the chronic obstructive pulmonary disease (COPD) patients with lung cancer. Methods A retrospective analysis was conducted on the COPD patients with lung cancer who underwent VATS lobectomy in the Department of Thoracic Surgery in the First Affiliated Hospital of Hebei North University from May 2014 to May 2018.The patients were assigned into a calcified lymph node group and a control group according to the presence or absence of calcified lymph nodes in CT,and the size,morphology,and calcification degree of the lymph nodes were recorded.The operation duration,intraoperative blood loss,chest tube retention time,hospitalization days,and overall complication rate were compared between the two groups. Results The 30 patients in the calcified lymph node group included 17 patients with one calcified lymph node and 13 patients with two or more calcified lymph nodes,and a total of 65 calcified lymph nodes were recorded.The calcified lymph nodes with the size ≤5 mm were the most common (53.8%),and complete calcification was the most common form (55.4%) in lymph node calcification.The mean operation duration had no significant difference between the calcified lymph node group and the control group (t=-1.357,P=0.180).The intraoperative blood loss (t=-2.646,P=0.010),chest tube retention time (t=-2.302,P=0.025),and hospitalization days (t=-2.274,P=0.027) in the calcified lymph node group were higher than those in the control group. Conclusion Calcified lymph nodes increase the difficulty and risk of VATS lobectomy in the COPD patients with lung cancer.The findings of this study are conducive to predicting the perioperative process of VATS lobectomy.
Humans ; Blood Loss, Surgical ; Retrospective Studies ; Lung Neoplasms/surgery* ; Pulmonary Disease, Chronic Obstructive ; Calcinosis ; Lymph Nodes

Objective To investigate the effect of calcification on the ultrasound-guided radiofrequency ablation(RFA)of papillary thyroid carcinoma(PTC).Methods We retrospectively analyzed the preoperative and follow-up data of 164 patients(182 nodules)with PTC treated by percutaneous ultrasound-guided RFA in the First Medical Center of Chinese PLA General Hospital from January 1,2018 to December 31,2021.The tumor status 12 months after RFA was taken as the endpoint event.The univariate Logistic regression analysis was employed to predict the influencing factors of incomplete ablation.The factors were then included in the multivariate Logistic regression analysis for prediction of the independent risk factors of incomplete ablation.Results The maximum nodule diameter(OR=1.16,95%CI=1.04-1.29,P=0.009)and calcification ratio >2/3(OR=19.27,95%CI=4.02-92.28,P<0.001)were the factors influencing the disappearance of lesion 12 months after RFA.Conclusions PTC with calcification can be treated with ultrasound-guided RFA.In the case of calcification ratio ≤ 2/3,this therapy demonstrates the effect equivalent to that of no calcification.
Humans ; Thyroid Cancer, Papillary/surgery* ; Retrospective Studies ; Neoplasm Recurrence, Local ; Radiofrequency Ablation/methods* ; Calcinosis ; Thyroid Neoplasms/pathology* ; Ultrasonography, Interventional

Humans ; Aortic Valve/surgery* ; Aortic Valve Stenosis/surgery* ; Calcinosis/surgery* ; Transcatheter Aortic Valve Replacement ; Heart Valve Prosthesis

Humans ; Aortic Valve/surgery* ; Aortic Valve Stenosis/surgery* ; Calcinosis/surgery* ; Transcatheter Aortic Valve Replacement ; Heart Valve Prosthesis

OBJECTIVE: To discuss the efficacy and safety of simultaneous bilateral endoscopic surgery (SBES) for bilateral upper urinary tract calculi, and to summarize the initial experience. METHODS: Patients diagnosed with bilateral upper urinary tract calculi who underwent SBES in the Department of Urology, Beijing Chao-Yang Hospital from January 2019 to January 2020 were enrolled retrospectively. The demographic and clinical data of the patients were recorded, and the operation status, stone free rate (SFR) and peri-operative complications were analyzed. The primary end point was SFR, and second end point was peri-operative complications. RESULTS: A total of 23 patients underwent SBES, of which SBES was completed in 19 patients (12 males, and 7 females). The mean age was (41.3±12.0) years. Fourteen patients underwent modified supine position surgery and 4 patients in prone split-leg position. There was no statistical difference in the demographic and baseline clinical data of the patients in different positions. One patient underwent right percutaneous nephrolithotomy (PCNL) and left endoscopic combined intra-renal surgery (ECIRS) in the prone split-leg position, while 18 patients received simul-taneous surgery with PCNL and contralateral retrograde intra-renal surgery (RIRS). The mean anesthesia and operation time was (128.7±26.5) min and (70.7±20.3) min, respectively, which was significantly longer in the patients with prone split-leg position than in the patients with modified supine position, anesthesia time in the patients with prone split-leg position and modified supine position: (148.4±20.4) min vs. (121.6±25.3) min, respectively, t=－2.121, P=0.049, while the operation time in the patients with prone split-leg position and modified supine position: (86.4±21.1) min vs. (65.1±17.4) min, respectively, t=－2.222, P=0.040. There was no significant difference between the two groups in indwelling of nephrostomy [prone split-leg position and modified supine position: (2.6±0.9) d vs. (2.1±1.0) d, respectively; t=－0.880, P=0.391] and the length of hospital stay [prone split-leg position and modified supine position: (6.0±2.7) d vs. (5.2±1.8) d, respectively; t=－0.731, P=0.475]. One month after the operation, the SFR was 78.9%, and 3 patients had minor peri-operative complications (Clavien-Dindo grades Ⅰ/Ⅱ) without any serious complications (Clavien-Dindo grades Ⅲ/Ⅳ/Ⅴ). CONCLUSION The simultaneous bilateral endoscopic surgery would decrease the operation time and anesthesia exposure under the premise of ensuring the SFR, which is helpful to reduce the risk of peri-operative complications, especially to the patients who can not tolerate the second-stage or long-time operation.
Adult ; Calcinosis/surgery* ; Endoscopy ; Female ; Humans ; Kidney Calculi ; Male ; Middle Aged ; Nephrolithotomy, Percutaneous ; Nephrostomy, Percutaneous ; Retrospective Studies ; Treatment Outcome ; Urologic Diseases/surgery*

PURPOSE: Ultrasonography plays a supplementary role in detecting breast microcalcifications as localizing these microcalcifications without mammographic aid is not always successful. This study aimed to evaluate the clinical implications of intraoperative sonography (IOUSG) in localized excisions after mammographically guided wire insertion. METHODS: Between May 2011 and December 2017, 90 localized excisional biopsies were included. All excisions were preceded by mammographically guided wire insertion. We divided them into two groups according to the use of IOUSG and compared the surgical outcomes between the two groups. RESULTS: Of the 90 localized excisions analyzed, IOUSG was performed in 40 (the USG group) localized excisions and not in the remaining 50 (the no USG group) localized excisions. The median cluster size of the target microcalcifications and the median specimen volume were smaller in the USG group than that in the no USG group (1.4 cm vs. 2.0 cm, p=0.02; 10.9 cm3 vs. 30.3 cm3, p<0.001, respectively). Additional excisions due to the incomplete coverage of the target microcalcifications on the specimen mammography were more frequent in the no USG group than in the USG group (30% vs. 15%, respectively, p<0.001). In the multivariate analyses, performing an IOUSG was the only significant risk factor, reducing the need for additional excision after adjusting the other risk factors (adjusted hazard ratio, 0.203; 95% confidence interval, 0.078–0.529). Performing an IOUSG significantly reduced the specimen volume excised after adjusting the cluster size of the microcalcifications. CONCLUSION: IOUSG could be helpful in improving the accuracy of surgical excision for breast microcalcifications localized with mammographically guided wire insertion.
Biopsy ; Breast ; Calcinosis ; Mammography ; Multivariate Analysis ; Risk Factors ; Surgery, Computer-Assisted ; Ultrasonography

No abstract available.
Animals ; Calcinosis ; Echinococcosis, Hepatic/diagnosis/*parasitology/surgery ; Echinococcus granulosus/*isolation & purification ; Hepatectomy ; Humans ; Liver/*parasitology/pathology/radiography/surgery ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Tomography, X-Ray Computed

PURPOSE: Our objective was to evaluate the use of a holmium laser for transurethral deroofing of a prostatic abscess in patients with severe and multiloculated prostatic abscesses. MATERIALS AND METHODS: From January 2011 to April 2014, eight patients who were diagnosed with prostatic abscesses and who underwent transurethral holmium laser deroofing at Pusan National University Hospital were retrospectively reviewed. RESULTS: Multiloculated or multifocal abscess cavities were found on the preoperative computed tomography (CT) scan in all eight patients. All patients who underwent transurethral holmium laser deroofing of a prostatic abscess had successful outcomes, without the need for secondary surgery. Of the eight patients, seven underwent holmium laser enucleation of the prostate (HoLEP) for the removal of residual adenoma. Markedly reduced multiloculated abscess cavities were found in the follow-up CT in all patients. No prostatic abscess recurrence was found. Transient stress urinary incontinence was observed in three patients. The stress urinary incontinence subsided within 3 weeks in two patients and improved with conservative management within 2 months in the remaining patient. CONCLUSIONS: Transurethral holmium laser deroofing of prostatic abscesses ensures successful drainage of the entire abscess cavity. Because we resolved the predisposing conditions of prostatic abscess, such as bladder outlet obstruction and prostatic calcification, by simultaneously conducting HoLEP, there was no recurrence of the prostatic abscesses after surgery. We recommend our method in patients requiring transurethral drainage.
Abscess/etiology/radiography/*surgery ; Aged ; Aged, 80 and over ; Calcinosis/complications/surgery ; Drainage/methods ; Holmium ; Humans ; Lasers, Solid-State/*therapeutic use ; Male ; Middle Aged ; Prostatic Diseases/etiology/radiography/*surgery ; Retrospective Studies ; Tomography, X-Ray Computed ; Transurethral Resection of Prostate/*methods ; Treatment Outcome ; Urinary Bladder Neck Obstruction/complications/surgery

Subependymomas are rare benign tumors located in the ventricular system. Intraparenchymal subependymoma is extremely rare; only 6 cases have been reported, and all were located in the supratentorial region. We describe a case of infratentorial, intraparenchymal subependymoma in a 28-year-old man with intermittent headache. Imaging revealed a well-demarcated cystic and solid cerebellar mass near the fourth ventricle. The mass had a microcystic component and calcification without contrast enhancement. Complete surgical excision was performed, and histopathology confirmed a subependymoma.
Adult ; Calcinosis/diagnosis ; Cerebellar Neoplasms/*diagnosis/surgery ; Fourth Ventricle ; Glioma, Subependymal/*diagnosis/surgery ; Humans ; Magnetic Resonance Imaging ; Male ; Rare Diseases/*diagnosis/surgery ; Tomography, X-Ray Computed