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Query: UMLS:C0027651 (tumor)
 685,946 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The first case of pure primary prostatic carcinoid is presented. Previous demonstration of the presence of enterochromaffin cells in the non-neoplastic prostate and in otherwise ordinary adenocarcinomas of the prostate furnishes a basis for the origin of this unique neoplasm.
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PMID:Primary carcinoid of prostate. 44 59

An extremely rare case of psammomatous calcification in a nonfunctioning duodenal carcinoid tumor was studied by light and electron microscopy. The psammoma bodies were found most frequently within the lumina of the neoplastic glands. The ultrastructural features of the psammoma bodies were the marginal needle-shaped crystals and a coarse granular matrix in which a few organelles were embedded. The psammoma bodies appeared to be occasionally intracytoplasmic in position, showing no distinct limiting cytoplasmic membrane. Electron probe x-ray microanalysis revealed that the needle-shaped crystals contained calcium. The mechanism by which the psammoma bodies are formed has not been clearly explained. The above findings support the view that the psammoma bodies may occur initially in the cytoplasm of the tumor cells, followed by their release probably in a way of active excretion.
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PMID:Duodenal carcinoid (apudoma) with psammoma bodies: a light and electron microscopic study. 44 38

An unusually large number (108) of carcinoids was discovered in the ileum of a 63-year-old male. The clustering and size distribution of tumor nodules suggests that the phenomenon reflects mucosal metastasis from a dominant parent tumor rather than multicentric neoplastic foci. A predilection for the antimesenteric mucosa was also observed and may be related to mucosal lymphatic spread of the carcinoid tumor.
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PMID:Carcinoid diathesis of the ileum. 44 77

A case of carcinoid tumor associated with adenocarcinoma arising in the prostate was studied. The results confirmed the presence of argentaffin cells. The significance of their presence and relationship to functional adenocarcinoma of the prostate are discussed.
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PMID:Carcinoid tumor of the prostate associated with adenocarcinoma. 45 56

The clinicopathologic features are presented of 8 malignant neoplasms occurring in adult teratomas, and of 2 malignant monodermal teratomas found in a continuous series of 1029 cases of ovarian adult teratomas. The age of the patients was 44--76 years. The first 8 observations included 6 epidermoid carcinomas, 1 undifferentiated carcinoma and 1 strumal carcinoid. In the epidermoid carcinomas malignancy was recognized peroperatively only in three instances. One tumor had infiltrated the broad ligament on one side and another the urinary bladder. The neoplasm appeared as a mass which thickened the wall of a typical dermoid cyst. Four patients died of the tumor from 3 months to 1 year after operation; one is alive more than 19 years later and one is lost to follow-up. The crucial factor in prognosis is the integrity of the ovarian capsule. The undifferentiated carcinoma, which had infiltrated the pelvic walls, could only be incompletely resected and caused death within 3 1/2 months. The strumal carcinoid was discovered by chance during laparotomy for a far-advanced adenocarcinoma of the pancreas which led to death within 2 months. The two cases of malignant monodermal teratoma comprised 1 thyroid papillary carcinoma and 1 carcinoid. Both patients are alive more than 8 and 5 years after operation. The carcinoid manifested itself by persistant diarrhea which ceased soon after operation and did not recur subsequently.
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PMID:[Mature benign teratomas with malignant tumors and malignant monodermal ovarian teratomas. Anatomo-clinical presentation of 10 cases]. 46 64

Carcinoid of the appendix occurred in 92 of 400,000 surgical pathology specimens covering 70 years, and followed previously reported incidences by age, sex, symptoms, size, localization and histology. Invasion of the mesoappendix occurred in 13 cases, and in two of these, a reoperative ileocolectomy demonstrated regional node metastases. No distant metastases or fatalities appeared. Tumor size correlated with mesoappendiceal invasion. Carcinoid invasion of the mesoappendix may provide a valuable marker for more distant tumor spread, and justify an aggressive surgical approach in selected patients.
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PMID:Carcinoid tumors of the appendix. Mesoappendiceal extension and nodal metastases. 46 79

A 48-year-old nulliparous woman with a long history of pelvic endometriosis underwent a gynecologic operation, and a swollen and indurated appendix was removed because of suspected endometriosis. Pathologic examination revealed no endometriosis, but examination of the distal appendix showed structural disorganization of its entire wall, with lack of proper differentiation of its normal coats and irregular overgrowth of fibroadipose, fibromuscular, and neural elements. Differential diagnoses, including endometriosis, carcinoid tumor and neurofibromatosis, are discussed.
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PMID:An unusual malformation of the vermiform appendix simulating endometriosis: a case report with discussion of differential diagnosis. 46 83

Endoscopic retrograde cholangiography was performed in a 32-year-old man with recurrent episodes of painless jaundice. There was demonstration of a large intraluminal mass causing partial obstruction of the common bile duct. The lesion proved to be a primary carcinoid tumor of the bile duct.
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PMID:Primary common bile duct carcinoid. 48 13

A 63-year-old man developed a carcinoid tumor of the cardia with unusual metastases of the brain and a rapid lethal course. Clinical aspects of these tumors, their attachment to apudomas and their new morphologic respectively functional--morphologic aspects are discussed.
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PMID:[Gastric carcinoid with brain metastases--a casuistical report (author's transl)]. 49 66

The intraluminal component of symptomatic malignant carcinoid tumors of the small bowel is typically small relative to the extension in the mesentery, and barium examinations are occasionally normal. This case report illustrates the diagnostic value of abdominal ultrasonography in the detection of extraluminal component of a carcinoid tumor.
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PMID:Ultrasound detection of a carcinoid tumor. 51 Aug 73


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