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

We report a third case of an unusual maligant neoplasm of the paranasal sinuses in a 60-year-old woman. Similar cases have been previously reported and called malignant teratoma. In consultation with Ackerman (written communication, February 1976) we propose the term "teratocarcinoma" and believe this is to be a more descriptive term and less likely to be confused with the generic term "teratoma," which is a benign tumor.
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PMID:Teratocarcinoma of the ethmoid sinus: review of literature plus a new case report. 11 30

An ameloblastic fibro-odontoma in a 14-year-old girl is reported. The case has clinical interest because of the location and the size of the tumor which was surgically enucleated. The different views about clinical, radiographical and histopathological characteristics and the classification of this benign tumor are discussed. The postoperative course was uneventful and the case has been controlled for 3 years without recurrence.
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PMID:Ameloblastic fibro-odontoma. 11 31

A double labeling method with two levels of tritiated thymidine was used to study 6 patients with seborrheic keratosis, 1 with a fibroepithelial tumor of Pinkus, and 1 with basal cell nevus syndrome manifesting three pits on the palm of the hand. The two latter types of lesions, known to be able to evolve into basal cell carcinoma, had an increased S-phase duration (18 hr for the germ cells of the palmar pits) as compared with normal epidermis (10 hr). This situation was similar to that observed in basal cell carcinoma, However, the S phase was not lengthened in seborrheic keratosis (9.2 plus or minus 1.6), a benign tumor in which malignant transformation is extremely rare. S phase was also of normal duration in the benign eosinophilic septa of the tumor of Pinkus.
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PMID:Kinetics of cell proliferation in benigh and premalignant tumors of the human epidermis. 12 65

A report of the only surviving adult to undergo partial excision of an intramural cardiac left ventricular fibroma is presented. Good results were obtained by relieving outflow tract obstruction through partial excision of the tumor from the septum and left ventricle. The need for conservative surgical treatment of patients with this rare, benign tumor is emphasized.
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PMID:Successful partial excision of an intramural fibroma of the left ventricle. 12 41

A case of a granular neuroma of the true vocal cord of a 47-year-old woman is presented. In world literature about 125 cases of this benign tumor in the larynx are published until now. The most common symptom of this tumor is hoarseness. The correct treatment is the total excision to avoid recurrence. The histology shows typical uniform cells, their cytoplasm filled with eosinophilic granules. The overlying epithelium may show pseudoepitheliomatous hyperplasia, which must not be misinterpreted as malignant squamous cell carcinoma. Finally the theory of Feyrter concerning the neurogenous origin of this tumor is discussed.
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PMID:[Granular neuroma of the larynx (author's transl)]. 14 61

Of 112 000 patients undergoing surgery between 1952 and 1973, 67 had a primary tumor of the small intestine. 22 patients had a benign tumor, 8 a carcinoid, 21 carcinoma and 15 sarcoma. Benign tumors were more frequent in the duodenum and ileum, carcinoids in the terminal ileum and carcinomas in the duodenum and jejunum. Sarcomas were found equally in all parts of the small intestine. The most common symptom for all types of the tumor was variable pain in the abdomen. Loss of weight occurred only in patients with carcinomas and sarcomas; heavy intestinal blood loss was most common in patients with benign tumors. Benign tumors often show invagination, while sarcomas cause occlusive ileus or perforation. All duodenal tumors show heavy intestinal bleeding but hematemesis is rare. Emergency surgery was necessary in 42% of patients with benign tumors or sarcoma and in 30% of patients with carcinoma. Five-year survival in patients with benign tumors is excellent (100%). Compared to this, five-year survival in patients with carcinoma, sarcoma or carcinoids is only 15%.
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PMID:[Complications in primary tumors of the small intestine]. 16 32

A case of positive tracer localization in a benign tumor of the liver on a 67Ga-citrate scan is reported. The authors were unable to find any previous reports of positive localization of gallium in this type of liver tumor.
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PMID:Gallium uptake in benign tumor of liver: case report. 16 31

The hidradenoma of vulva is a rare tumor. After description histogenesis and microscopic appearance demonstrated histological difficulties. An exact microscopic diagnois is necessary because the hidradenoma is a benign tumor.
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PMID:[The hidradenoma of the vulva]. 17 84

Granular cell myoblastoma is an uncommon benign tumor. The diagnosis is rarely suspected preoperatively, and the clinician is frequently baffled or frightened by an unfamiliar diagnosis. Twenty-eight patients with the diagnosis of granular cell myoblastoma presented for treatment at Richmond Eye and Ear Hospital and the Medical College of Virginia Hospitals between January 1, 1952, and December 31, 1974. The authors believe that this is one of the largest series of cases reported in the world literature. The tumor presents most often in the fourth decade of life and about equally in the sexes. Of interest is the nearly 5:1 predominance in the Negro race compared to the Caucasian race.
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PMID:Granular cell myoblastomas. 17 44

Insulinoma is a rare tumor, occurring more often in women and in the older age range. Eighty percent of patients have a single benign tumor, usually less than or equal to 2 cm in diameter, located with about equal frequency in body, head, or tail of the pancreas and amenable to surgical cure. About 10% have multiple tumors; in this group there is a high incidence of multiple endocrine neoplasia type I syndrome. The remaining 10% of patients have metastatic malignant insulinoma. Symptoms are intermittent, recur at irregular intervals in the food-deprived state over a median of 1 1/2 years, and arise from varying degrees of neuroglycopenia. Symptoms often lead to misdiagnosis as a neurologic or psychiatric disorder. Transient neurologic deficits and EEG abnormalities can be observed during hypoglycemia. Diagnosis requires repeated demonstration of hypoglycemia (glucose less than or equal to 40 mg/dl) during spontaneous or provoked symptoms, relief with ingestion of carbohydrates, simultaneous hyperinsulinemia (serum insulin greater than 6 muU/ml), and absence of insulin antibodies. A useful diagnostic adjunct is the intravenous tolbutamide test, for which new diagnostic criteria are presented.
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PMID:Insulinoma: clinical and diagnostic features of 60 consecutive cases. 18 Mar 58


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