Reticulohistiocytoma is a rare, benign histiocytic proliferation of the skin or soft tissue. A 5-month-old healthy girl visited our clinic for an enlarging nodule on the center of her right palm. The clinical differential diagnosis included xanthogranuloma and primary cutaneous CD4 positive small/medium T-cell lymphoma. Histopathology of the nodule showed abundant eosinophilic and glassy cytoplasm. The nuclei were round to oval shaped, with focal irregular nuclear membrane, and mitotic figures were absent. Immunohistochemical study determined that the cells were positive for CD68 but negative for CD1a. She was finally diagnosed with reticulohistiocytoma (solitary epithelioid histiocytoma).
Cytoplasm ; Diagnosis, Differential ; Eosinophils ; Female ; Histiocytosis, Non-Langerhans-Cell ; Humans ; Infant ; Lymphoma, T-Cell ; Nuclear Envelope ; Skin

Background/Aims: Veno-occlusive disease/sinusoidal obstruction syndrome (VOD/SOS) is one of the most fatal complications of hematopoietic cell transplantation (HCT), and defibrotide is the only curative drug. We conducted this study to confirm the survival rate of VOD/SOS patients diagnosed in Korea and assess the efficacy of defibrotide. Methods: Patients diagnosed with VOD/SOS after allogenic HCT between 2003 and 2020 were enrolled. We investigated day +100 survival rates and associated risk factors in patients who satisfied the modified Seattle criteria within 50 days of HCT. Results: A total of 110 patients satisfied the modified Seattle criteria, of which 65.5% satisfied the Baltimore criteria. Thirty-seven patients were treated with defibrotide. The day +100 survival rate of the 110 patients was 65.3%. The survival rates in patients who did not meet the Baltimore criteria and in those who did were 86.8% and 53.7%, respectively (p = 0.001). The day +100 survival rate of patients treated with defibrotide was 50.5%. Among the patients receiving defibrotide, those whose creatinine levels were more than 1.2 times the baseline had a significantly lower survival rate at 26.7% (p = 0.014). On multivariate regression analysis, the hazard ratio of satisfaction of the Baltimore criteria was 4.54 (95% confidence interval [CI], 1.69 to 12.21; p = 0.003). In patients treated with defibrotide, the hazard ratio was 8.70 (95% CI, 2.26 to 33.45; p = 0.002), when creatinine was more than 1.2 times the baseline on administration. Conclusions The day +100 survival rate was significantly lower when the Baltimore criteria were satisfied, and when there was an increase in creatinine at the time of defibrotide administration.

PURPOSE: The present study explores the expression rate of p53 mutation and the correlation between the expression of p53 protein and prognostic factors in medulloblastoma/ PNET (primitive neuroectodermal tumor). MATERIALS AND METHODS: We studied retrospectively 24 patients with medulloblastoma/ PNET, who were admitted in Dong-A University Hospital, Pusan National University Hospital and Inje University Pusan Paik Hospital from 1988 to 1995. Detection of p53 mutations was made by immunohistochemical staining of p53 protein on paraffin- embedded tissues. The correlation between the expression of p53 protein and prognostic factors was evaluated by the Spearman correlation analysis. RESULTS: p53 protein was expressed in 6 of 24 patients (25%). In 20 patients who could be evaluated for metastasis, 16 patients of M0, 1 patient of M1 and 3 patients of M2 were grouped by M stage, and the expression of p53 was detected in 1 of 16 M0 group (6.3%) and 3 of 3 M2 group (100%). p53 expression was significantly related to the M stage of medulloblastoma/PNET (r=0.73, p<0.001). The detection of p53 was not significantly associated with T stage, cellular differentiation and the relapse rate of medulloblastoma/ PNET. CONCLUSION: The immunohistochemical detection rate of p53 protein in medulloblastoma/ PNET was 25%. The expression of p53 protein was significantly related to the M stage, with higher expression rate in M2 group of medulloblsatoma/PNET.
Busan ; Humans ; Medulloblastoma ; Neoplasm Metastasis ; Neural Plate ; Neuroectodermal Tumors, Primitive ; Recurrence ; Retrospective Studies

No abstract available.
Calcium*

STUDY DESIGN: This is a prospective study. PURPOSE: We compared the outcomes of segmental decompression and wide decompression in patients who had multilevel lumbar foraminal stenosis with back pain. OVERVIEW OF LITERATURE: Wide decompression and fusion in patients with multilevel lumbar foraminal stenosis may increase the risk of perioperative complications. METHODS: From March 2005 to December 2007, this study prospectively examined 87 patients with multilevel lumbar foraminal stenosis and who were treated by segmental or wide decompression along with posterior fusion using pedicle screw fixation, and these patients could be followed-up for a minimum of 2 years. Of the 87 patients, 45 and 42 patients were assigned to the segmental decompression group (group 1) and the wide decompression group (group 2), respectively. We compared the clinical and radiological outcomes of the patients in these two groups. RESULTS: There were no significant differences between groups 1 and 2 in terms of the levels of postoperative pain based on the visual analogue scale, the Oswestry Disability Score, the clinical results based on the Kirkaldy-Willis Criteria, the complication rate or the posterior fusion rate. On the other hand, the mean operating times in groups 1 and 2 were 153 +/- 32 minutes and 187 +/- 36 minutes, respectively (p < 0.05). The amount of blood loss during surgery and on the first postoperative day was 840 +/- 236 ml and 1,040 +/- 301 ml in groups 1 and 2, respectively (p < 0.05). CONCLUSIONS: These results suggest that segmental decompression offers promising and reproducible clinical and radiological results for patients suffering from multilevel lumbar foraminal stenosis.
Constriction, Pathologic ; Decompression ; Hand ; Humans ; Pain, Postoperative ; Prospective Studies ; Stress, Psychological

Malignant peripheral nerve sheath tumor (MPNST) is a rare neoplasm and the main cause of the mortality in neurofibromatosis type 1 (NF 1). MPNSTs have been found mostly in the head and neck and the upper or lower extremities with intrathoracic MPNSTs being uncommon. PET has been a useful diagnostic modality of MPNSTs in NF 1. We present a 17-year-old girl patient with NF 1. She was admitted with chronic cough and shortness of breath caused by a huge mediastinal mass. An 18FDG-PET study revealed intense uptake at the mediastinal mass. She underwent surgery to lessen respiratory symptoms, and the mass was histologically diagnosed as an intrathoracic MPNST.
Adolescent ; Cough ; Dyspnea ; Head ; Humans ; Lower Extremity ; Neck ; Nerve Sheath Neoplasms ; Neurofibromatoses ; Neurofibromatosis 1 ; Peripheral Nerves

Background: The aim of this study was to determine an intravenous dose of ketorolac providing augmentation of analgesia and lowering adverse events for patients using postoperative intravenous patient-controlled analgesia (IV-PCA) with morphine Methods: One hundred and ninety eight patients who underwent an elective gynecologic operation were allocated to one of seven groups (ketorolac 180 mg K6, ketorolac 150 mg + morphine 10 mg K5M1, ketorolac 120 mg + morphine 20 mg K4M2, ketorolac 90 mg + morphine 30 mg K3M3, ketorolac 60 mg + morphine 40 mg K2M4, ketorolac 30 mg + morphine 50 mg K1M5, morphine 60 mg M6). After a loading dose of 3 ml, the PCA was started at a setting of 1 ml per demand, with a 8 minute lockout interval and 5-h limit. Results: The total PCA volume was lower in the K3M3, K2M4 and M6 groups. Visual analogue scale pain scores were higher in the K6 and M6 groups. More additional analgesics were required in the K6, K5M1, K1M5 and M6 groups. More antiemetics were required in the M6 group, although the incidence of nausea/vomiting and pruritus was similar among the groups. The sedation scores were lower in the K6 group and higher in the M6 group, 6 h postoperatively; and higher in the M6 and K1M5 groups, 24 h postoperatively. Conclusions: The combination of morphine 30 mg and ketorolac 90 mg, or morphine 40 mg and ketorolac 60 mg in IV-PCA with a total volume of 60 ml, is more effective in analgesia and has less adverse events.
Analgesia ; Analgesia, Patient-Controlled* ; Analgesics ; Antiemetics ; Female ; Gynecologic Surgical Procedures* ; Humans ; Incidence ; Ketorolac* ; Morphine* ; Passive Cutaneous Anaphylaxis ; Pruritus

PURPOSE: Trauma is a leading cause of death, even in previously healthy and disease-free individuals, and the mortality rate is very high in neck trauma patients. On the other hand, there have been few studies related to neck injuries. This study examined the characteristics and treatment results of trauma-related neck injuries using the data from Korean National Emergency Department Information System. METHODS: Neck trauma patients were classified using the 6th Korean Standard Disease Classification system. The patients' demographic factors, number of surgeries, and clinical results were investigated. Statistical analysis was conducted using SPSS to evaluate the annual differences in the demographic factors; mortality according to the site of injury and type of surgery; and mechanisms of injury. RESULTS: From 2011 to 2014, 2,458 neck trauma patients were treated in hospitals in South Korea. The number of patients admitted to regional and local emergency medical centers was 883 (35.9%) and 1,502 (61.1%), respectively. No significant annual differences were observed in age, sex ratio, location of treatment center, mortality, and injury site (vascular, tracheal, or esophageal). In addition, no significant differences in the cause of injury, performed surgery (%), and mortality according to the injured organ were observed. CONCLUSION: This study revealed no annual changes in neck injury patients or differences in mortality according to injured organs. This study can be used as a basis for national research on organ-specific injuries, and may help predict the demand for future support projects for the establishment of regional trauma centers.
Cause of Death ; Classification ; Demography ; Emergencies* ; Emergency Service, Hospital* ; Hand ; Humans ; Information Systems* ; Korea ; Mortality ; Neck Injuries ; Neck* ; Sex Ratio ; Trauma Centers ; Wounds and Injuries

Coronavirus disease 2019 (COVID-19) vaccination in immunocompromised, especially transplant recipients, may induce a weaker immune response. But there are limited data on the immune response after COVID-19 vaccination in liver transplant (LT) recipients, especially on the comparison of Ab responses after different vaccine platforms between mRNA and adenoviral vector vaccines. Thus, we conducted a prospective study on LT recipients who received two doses of the ChAdOx1 nCoV-19 (ChAdOx1), mRNA-1273, or BNT162b2 vaccines compared with healthy healthcare workers (HCWs). SARS-CoV-2 S1-specific IgG Ab titers were measured using ELISA.Overall, 89 LT recipients (ChAdOx1, n=16 [18%]) or mRNA vaccines (mRNA-1273 vaccine, n=23 [26%]; BNT162b2 vaccine, n=50 [56%]) received 3 different vaccines. Of them, 16 (18%) had a positive Ab response after one dose of COVID-19 vaccine and 62 (73%) after 2 doses. However, the median Ab titer after two doses of mRNA vaccines was significantly higher (44.6 IU/ml) than after two doses of ChAdOx1 (19.2 IU/ml, p=0.04). The longer time interval from transplantation was significantly associated with high Ab titers after two doses of vaccine (p=0.003). However, mycophenolic acid use was not associated with Ab titers (p=0.53). In conclusion, about 3-quarters of LT recipients had a positive Ab response after 2 doses of vaccine, and the mRNA vaccines induced higher Ab responses than the ChAdOx1 vaccine.

BACKGROUND: Venous thromboembolism (VTE) is rare in pediatric patients compared to adults, but it's incidence is gradually increasing. The purpose of this study was to analyze the incidence, risk factors, and prognosis of pediatric patients with VTE in Korea. METHODS: Between January 2000 and July 2017, 249,312 medical records of the patients older than 1 year who were hospitalized in the department of pediatrics of 10 university hospitals in Yeungnam region were retrospectively reviewed. RESULTS: The overall incidence of VTE was 4.9 per 10,000 admissions. Of the total 123 patients, 80 (65.0%) were male and the median age was 10.8 years (range, 1.0–23.5 years). Magnetic resonance imaging was performed most frequently to confirm the diagnosis of VTE (43.1%). Thrombosis occurred in the cerebral vessels (46.3%), lower extremities (23.8%), pulmonary (19.5%), abdomen (9.8%), and upper extremities (4.1%). One hundred and six patients had underlying causes such as cancer (27.6%), infection (26.8%), intravenous catheter insertion (17.9%), and surgery (14.6%). Protein C was evaluated in 39 patients (31.7%), protein S in 40 (32.5%), antithrombin (AT) III in 52 (42.3%), and homocysteine in 21 (17.1%). Among them, one patient with a family history of AT III deficiency had SERPINC gene mutation. Seventy-seven patients (62.6%) started anticoagulation treatment. Most (52.0%) were treated for more than 90 days. CONCLUSION: Healthcare providers must be aware of the potential for VTE development in childhood. In the near future, a nationwide survey should be investigated to determine the incidence rate and the trends in VTE among Korean children.
Abdomen ; Adult ; Catheters ; Child ; Diagnosis ; Epidemiology ; Health Personnel ; Homocysteine ; Hospitals, University ; Humans ; Incidence ; Korea* ; Lower Extremity ; Magnetic Resonance Imaging ; Male ; Medical Records ; Pediatrics ; Prognosis ; Protein C ; Protein S ; Retrospective Studies ; Risk Factors ; Thrombosis ; Upper Extremity ; Venous Thromboembolism*