ABSTRACT
Somatostatin analogue octreotide is commonly used for the treatment of carcinoid syndrome. Octreotide also has an antiproliferative effect in neuroendocrine tumors and has demonstrated tumor reduction in patients having advanced carcinoid tumor. This is a case report of a patient who had metastatic liver carcinoid tumor and showed marked regression of liver metastasis after octreotide therapy.
Subject(s)
Humans , Carcinoid Tumor , Liver , Neoplasm Metastasis , Neuroendocrine Tumors , Octreotide , SomatostatinABSTRACT
Carcinoid tumors are the most common endocrine tumors of gastrointestinal tract. Argentaffin cells are the origin of carcinoids. These cells belong to the amino precursor uptake and decarboxylation (APUD) system. These cells give the tumor its most distinguishing feature: the ability to produce biogenic amines and polypeptide hormones that, in turn, give rise to the dramatic carcinoid syndrome. We treated a case of multi-centric carcinoid tumor of the duodenum in a 63-year-old male patient. He was admitted to the hospital because of epigastric pain. On the gastrofiberscopic examination, 1.0 x1.5 cm and 0.7 x0.8 cm sized two polyps (Yamada type II, I) were noticed on the duodenal bulb. The biopsy specimen showed carcinoid tumors of different histologic types. The level of 24-hour urine 5-HIAA of this case was normal. He was treated with subtotal gastrectomy with Billroth-II anastomosis. We report this case with literature review.
Subject(s)
Humans , Male , Middle Aged , Biogenic Amines , Biopsy , Carcinoid Tumor , Decarboxylation , Duodenum , Enterochromaffin Cells , Gastrectomy , Gastrointestinal Tract , Hydroxyindoleacetic Acid , Peptide Hormones , PolypsABSTRACT
The nephrotic syndrome in association with extrarenal malignancy is not an uncommon event. The membranous nephropathy is most frequently associated with various carcinomas of the lung, breast, stomach and colon. Though the exact causal relationship has not been determined completely, deposition of the immune complexes composed of antitumor antibody and tumor antigens in the subepithelium is most favorably accepted. We experienced a patient with previously diagnosed membranous nephropathy and subsequently demonstrated early gastric cancer during patient follow-up. After surgical resection proteinuria improved significantly. All physicians are strongly recommended to examine thoroughly and search carefully for possibility of concomitant occult malignancy when an aged patient, especially over 40 years old, is diagnosed as a nephrotic syndrome.