No abstract available.
Embryo Transfer* ; Embryonic Structures* ; Fertilization in Vitro*

No abstract available.
Hemangioma* ; Liver* ; Tomography, Emission-Computed, Single-Photon*

No abstract available.
Hemangioma* ; Liver* ; Tomography, Emission-Computed, Single-Photon*

Schwannomas arise from the neural crest-derived Schwann cells. Their most common locations are the extremities, neck, mediastinum, retroperitoneum, and cerebellopontine angle. They have rarely been reported to occur in the breast. We herein report on a case of schwannoma of the breast in a 30-year-old woman. The ultrasonographic examination showed a well defined ovoid hypoechoic mass in the upper outer quadrant of her left breast. A presumptive diagnosis of fibroadenoma was made, and the mass was then removed. The histopathologic and immunohistochemical features confirmed the diagnosis of schwannoma of the breast.
Adult ; Breast* ; Cerebellopontine Angle ; Diagnosis ; Extremities ; Female ; Fibroadenoma ; Humans ; Mediastinum ; Neck ; Neurilemmoma* ; Schwann Cells

PURPOSE: The purpose of this study was to establish optimal imaging acquisition conditions for the GE Advance(TM) PET imaging system by performing the acceptance tests designed by National Electrical Manufacturers Association (NEMA) protocol and General Electric Medical Systems (GEMS) test procedures. MATERIALS AND METHODS: Performance tests were carried out with 18FDG radioactivity source and phantoms by using a standard acquisition mode. Transaxial resolution and scatter fraction tests were performed with a line source and axial resolution with a point source, respectively. A cylindrical phantom made of polymethylmethacrylate (PMMA) was used to measure sensitivity, count rate losses and randoms, uniformity correction, and attenuation inserts were added to measure remaining tests. The test results were acquired in a diagnostic acquisition mode and analyzed mainly on high sensitivity mode. RESULTS: Transaxial resolution and axial resolution were measured as average of 4.65 mm and 3.98 mm at 0 cm, and 6.02 mm and 6.71 mm at 20 cm on high sensitivity mode, respectively. Average scatter fraction was 9.87%, and sensitivity was 225.8 kcps/micronCi/cc of trues. Activity at 50% deadtime was 4.6 Ci/cc, and the error of count rate correction at that activity was from 1.49% to 3.83%. Average nonuniformity for total slice was 8.37%. The accuracy of scatter correction was -0.95%. The accuracies of attenuation correction were 5.68% for air, 0.04% for water and -6.51% for polytetrafluoroethylene (PTFE). CONCLUSION: The results satisfied most acceptance criteria, indicating that the GE AdvanceTM PET system can be optimally used for clinical applications.
Electrons* ; Fluorodeoxyglucose F18 ; Polymethyl Methacrylate ; Polytetrafluoroethylene ; Positron-Emission Tomography* ; Radioactivity ; Water

We report a case of patient with acute toxic hepatitis induced by weight-loss herbal supplement. A patient took natural extract supplement containing Garcinia cambogia for only two days and visited Kyung Hee University Hospital at Gangdong complaining of abdominal discomfort and jaundice. Serum ceruloplasmin level was decreased and hepatic copper levels on liver biopsy specimen were increased. Although, those were mimicking Wilson's disease, pathological findings and clinical manifestations were consistent with drug-induced acute hepatitis. Genetic test was negative for Wilson's disease. After one month of hospitalization, the patient improved and was discharged home in good condition. She was followed up for four months and her symptoms and signs of hepatitis continued to improve steadily with normal liver function tests. Our case emphasizes the importance of taking a caution when taking herbal supplements for the purpose of weight loss. This case also demonstrates the importance of suspicion of medication-related adverse events, even though the duration of taking the materials seems to be too short to affect the patients.
Biopsy ; Ceruloplasmin ; Copper ; Drug-Induced Liver Injury* ; Garcinia cambogia* ; Hepatitis ; Hepatolenticular Degeneration ; Hospitalization ; Humans ; Jaundice ; Liver ; Liver Function Tests ; Weight Loss

Malignant fibrous histiocytoma (MFH) is a primitive sarcoma originating in the deep soft tissue and composed of fibrocytic and histiocytic cells in a storiform pattern. It is rare but the most common soft tissue sarcoma of adulthood. MFH occurred in various epithelial organs derived from the supportive mesenchymal elements. The lung represents an extremely rare primary site. We have experienced one case of MFH, arising in the lung parenchyme in 67 years old male patient with cough for 6 months. The patient was taken right upper lobe and right middle lobe lobectomy with good post-operative results. But another MFH was recurred in the left upper lobe 3 months after complete resection. So he had been treated with chemotherapy and radiofrequency ablation of tumor. Then he continued to be treated with chemotherapy
Aged ; Catheter Ablation ; Cough ; Drug Therapy ; Histiocytoma, Malignant Fibrous* ; Humans ; Lung* ; Male ; Sarcoma

Purpose: To establish a prospective registry for the active surveillance (AS) of prostate cancer (PC) using the Korean Urological Oncology Society (KUOS) database and to present interim analysis. Materials and Methods: The KUOS registry of AS for PC (KUOS-AS-PC) was organized in May 2019 and comprises multiple institutions nationwide. The eligibility criteria were as follows: patients with (1) pathologically proven PC; (2) pre-biopsy prostate-specific antigen (PSA) ≤20 ng/mL; (3) International Society of Urological Pathology (ISUP) grade 1 or 2 (no cribriform pattern 4); (4) clinical T stage ≤T2c; (5) positive core ratio ≤50%; and (6) maximal cancer involvement in the core ≤50%.Detailed longitudinal clinical information, including multi-parametric magnetic resonance imaging and disease-specific outcomes, was recorded. Results: From May 2019 to June 2021, 296 patients were enrolled, and 284 were analyzed. The mean±standard deviation (SD) age at enrollment was 68.7±8.2 years. The median follow-up period was 11.2 months (5.9–16.8 mo). Majority of patients had pre-biopsy PSA ≤10 ng/mL (91.2%), PSA density <0.2 ng/mL 2 (79.7%), ISUP grade group 1 (94.4%), single positive core (65.7%), maximal cancer involvement in the core ≤20% (78.1%), and clinical T stage of T1c or lower (72.9%). Fifty-two (18.3%) discontinued AS for various reasons. Interventions included radical prostatectomy (80.8%), transurethral prostatectomy (5.8%), primary androgen deprivation therapy (5.8%), radiation (5.8%), and focal therapy (1.9%). The mean±SD time to intervention was 8.9±5.2 months. The reasons for discontinuation included pathologic reclassification (59.6%), patient preference (25.0%), and radiologic reclassification (9.6%). Two (4.8%) patients with pathologic Gleason score upgraded to ISUP grade group 4, no biochemical recurrence. Conclusions The KUOS established a successful prospective database of PC patients undergoing AS in Korea, named the KUOS-AS-PC registry.

Rectal metastasis of colon cancer without peritoneal carcinomatosis is a rare condition whose initial clinical presentation may mimic inflammation. To the best of our knowledge, there was no report on such cases. A 45-year-old man with a history of left hemicolectomy and adjuvant chemotherapy for primary signet ring cell carcinoma (SRCC) of the descending colon, admitted to have constipation and abdominal pain for 3 weeks. His colonoscopic findings did not show local tumor recurrence at the anastomsis site, however, a hard, concentric luminal narrowing of the lower rectum was encountered. Endoscopic biopsies revealed chronic inflammations, and positron emission tomography with 18F-fluorodeoxyglucose revealed diffuse mildly hypermetabolic lesion in the rectum, suggesting inflammation. Magnetic resonance image showed submucosal wall thickening with multiple perirectal lymph nodes. Rectal metastasis of colon cancer was highly suspected clinically and a surgical biopsy confirmed SRCC which was surgically removed thereafter.
Abdominal Pain ; Biopsy ; Carcinoma ; Carcinoma, Signet Ring Cell ; Chemotherapy, Adjuvant ; Colon ; Colon, Descending ; Colonic Neoplasms ; Constipation ; Humans ; Hydrazines ; Inflammation ; Lymph Nodes ; Magnetic Resonance Spectroscopy ; Middle Aged ; Neoplasm Metastasis ; Phenobarbital ; Positron-Emission Tomography ; Rectum ; Recurrence

Lymphangioma is a benign vascular lesion with characteristics of subepithelial tumor which can proliferate in the lymphatic system. Lymphangioma of the small-bowel mesentery is rare, having been reported in less than 2% of all lymphangiomas. Lymphangioma does not require any specific treatment because it is absolutely a benign tumor. However, surgical exploration is rarely required for cases with disease-related symptoms or complications, or for those misdiagnosed as a malignant lesion. We recently experienced a case of mesenteric cavernous lymphangomas in a 53-year-old female who was misdiagnosed as having a liposarcoma. The final diagnosis was confirmed by a pathologic examination of the specimen that was obtained via laparoscopic exploration. Herein, we report a very rare case of mesenteric cavernous lymphangioma along with a brief review of relevant literature.
Female ; Humans ; Intestine, Small/pathology ; Laparoscopy ; Lymphangioma/*diagnosis/pathology/surgery ; Mesentery/pathology ; Middle Aged ; Peritoneal Neoplasms/*diagnosis/pathology/surgery ; Tomography, X-Ray Computed