Late Presentation of Metastatic Renal Cell Carcinoma as a Bleeding Duodenal Mass / 대한내과학회지

Gastrointestinal metastasis of a renal cell carcinoma is very rare, and the clinical course of the disease ranges from months to several decades. We experienced a case of solitary duodenal metastasis about 22 years after a right nephrectomy for clear-cell type renal cell carcinoma in a 77-year-old man who complained of melena. This case is the longest reported time interval between surgical nephrectomy to presentation with a duodenal metastasis. Patients usually present with recurrence within a year after radical nephrectomy but can present after many years, warranting lifelong surveillance.

A Case of Lymphoid Polyp in the Ampulla of Vater Associated with Tubulopapillary Adenoma / 대한소화기내시경학회지

Lymphoid polyp is a very rare disease that commonly occurs in the rectum. It is a benign, focal or diffuse lesion that typically occurs where clusters of lymphoid follicles are present. The polyp is composed of well differentiated lymphoid tissue. It can generally be differentiated from malignant lymphoma by the proliferation of normal lymphoid tissue, which has a prominent follicular pattern and a clearly defined germinal center. There have been only a few reports of lymphoid polyps of the rectum, and there have been no reports of lymphoid polyp in the ampulla of Vater. We experienced a case of lymphoid polyp in the ampulla of Vater associated with tubulopapillary adenoma, and the patient first presented with jaundice, weight loss and general weakness.

Pancreatic and Biliary Strictures Associated with Cholangitis and Bile Reflux Following Endoscopic Papillectomy of Ampullary Adenoma / 대한소화기내시경학회지

Ampullary adenoma is rare but clinically important because it is a premalignant lesion. Use of endoscopic gastroduodenoscopy has increased detection of adenoma of the major duodenal papilla. Endoscopic papillectomy is a promising technique to supplant surgical ampullectomy, because it is less aggressive and more stable. However, various complications include bleeding, perforation, pancreatitis and cholangitis. We describe pancreatic and biliary strictures associated with cholangitis, and bile reflux through the pancreatic duct to the minor duodenal papilla after endoscopic papillectomy. Pancreatic and biliary strictures have not been hitherto reported complications. We performed endoscopic papillary balloon dilatation, minor papilla papillotomy and inserted a drain tube through the accessory pancreatic duct.

A Case of Cytomegalovirus (CMV) Colitis in a Patient after Splenectomy / 대한소화기내시경학회지

Cytomegalovirus (CMV) is the most common cause of life-threatening opportunistic viral infection in patients with acquired immunodeficiency syndrome (AIDS). However, CMV infection may occur in the immunocompetent individuals. CMV colitis has not been reported in a patient with splenectomy in Korea. Recently, we experienced a case of fatal CMV colitis in a patient with splenectomy. A 69-year-old man complained of bloody mucoid diarrhea and abdominal pain for 2 months. He had the splenectomy 6 months ago. CMV colitis was diagnosed by colonoscopy and pathologic examination. He died of sepsis in spite of antiviral ganciclovir therapy.