ABSTRACT: We present a case of perivascular epithelioid cell tumors (PEComas) in the abdominal cavity at the falciform ligament. A 30-yr-old Korean man visited to hospital for the evaluation of a growing, palpable abdominal mass. He had felt the mass growing over 6 months. There was no family or personal history of tuberous sclerosis. The resected specimen showed a mass of 8.0x7.0x5.5 cm in size. Histological examination showed sheets of spindle-to-epithelioid cells with clear-to-eosinophilic cytoplasm. Immunohistochemically, tumor cells were positive for HMB-4 (gp100) and smooth muscle actin. They were also positive for the S-100, which is a marker of neurogenic and melanocytic tumors. Patient was treated with radical resection of tumor without any adjuvant therapy. He is well and on follow-up visits without tumor recurrence.
Journal of Korean medical science 05/2009; 24(2):346-9. · 0.84 Impact Factor
Gastrointestinal endoscopy 02/2009; 69(3 Pt 1):564-5. · 6.71 Impact Factor
ABSTRACT: Endoscopic stone removal is difficult in patients with a Billroth II gastrectomy.
To evaluate the usefulness of a rotatable papillotome and large-balloon dilation for removing bile-duct stones in patients with a Billroth II gastrectomy.
A case series.
A large tertiary-referral center.
Nine patients with bile-duct stones and a previous Billroth II gastrectomy were included. An endoscopic sphincterotomy (EST) was performed with a rotatable papillotome that could correct the axis of the cut toward the 5-o'clock direction; a large-balloon dilation (LBD) was then performed.
The ability to perform an EST in the desired direction, successful stone removal, and complications.
Rotation of the papillotome toward the 5-o'clock direction and an EST were achieved in 8 patients (89%). Stones were removed by EST and LBD in all 8 patients. There were no complications.
A small sample size.
Limited EST by using a rotatable papillotome plus large-balloon dilation seemed to be safe, easy, and effective for removing bile-duct stones in patients with a Billroth II gastrectomy.
Gastrointestinal endoscopy 07/2008; 67(7):1134-8. · 6.71 Impact Factor
ABSTRACT: Recent studies have shown good performance for the detection of sources of gastrointestinal bleeding using multi-detector row computed tomography (MDCT). However, there are limited reports about the role of MDCT for localization of acute lower gastrointestinal (GI) bleeding. The purpose of this study was to evaluate the role of MDCT for detection and localization of acute lower gastrointestinal bleeding.
A total of 49 patients underwent MDCT examination for the evaluation of acute lower GI bleeding were investigated prospectively. Sensitivity, specificity, positive and negative predictive values of MDCT for the detection of acute lower GI bleeding were assessed. Colonoscopy, angiography, RBC scan or postoperative results were adopted as the reference standard.
Sensitivity, specificity, positive and negative predictive values of MDCT for the detection of acute lower GI bleeding were 72.7%, 80%, 93.9% and 25%, respectively. Eighteen patients experienced massive bleeding and 5 of them could not undergo the colonoscopic examination due to massive bleeding. MDCT detected the bleeding focuses in all of 5 patients.
MDCT is useful for the localization of acute lower GI bleeding. The procedure is brief, less invasive, and relatively accurate diagnostic method. Moreover, positive finding will allow directed therapeutic procedure such as angiography.
The Korean journal of gastroenterology = Taehan Sohwagi Hakhoe chi 06/2008; 51(5):298-304.