PubMed Health⌕ Search

Biomedical subjects

M F Trevisani

Publications and source records attributed to M F Trevisani.

4 recordsLinked to original sources
PubMed1999

Small-cell carcinoma of the rectum: report of two cases.

Small-cell carcinoma of the rectum is an infrequent pathologic finding, and its precise incidence is unknown. Its incidence is less than 0.2 percent among all colorectal cancers. This tumor manifests highly aggressive behavior. The treatment of choice is combination chemotherapy similar to that used for small-cell carcinoma of the lung, but in small localized tumors surgery plus chemotherapy is an alternative. We present two cases of small-cell carcinoma of the lower rectum and a review of the literature.

Aged↗
PubMed1991

Acute appendicitis. A 5-year review.

A startling 31 per cent rate of perforated appendicitis in 1984 prompted a 5-year review at the Guthrie Medical Center. An increase over previous rates of 13 per cent and 0 per cent in 1964 and 1944 was confirmed in this study. Perforation accompanied 44 of 240 cases of appendicitis (18.3%); diagnostic accuracy in 295 cases undergoing operation was 81.4 per cent. Groups at risk for perforation were patients in the first decade of life (34.3% with perforations) and those over 50 years of age (48% perforated). Perforation rates were generally inversely related to accuracy. Accuracy was poorest in women in the second to fourth decade or those in the mid-portion of the menstrual cycle. When the appendix was not perforated, complications occurred in 8.7 per cent of patients while 29.5 per cent with a perforation had a complication. The mean hospital stay was prolonged by 2.5 days if the appendix was perforated. An increased awareness of the risk by both the public and physicians is essential to reduce the number of perforations.

Adolescent↗
PubMed1987

Multiple mesenteric aneurysms complicating subacute bacterial endocarditis.

Multiple visceral aneurysms complicating periarteritis nodosa are considered characteristic, though not pathognomonic, on arteriography. This arteriographic pattern has been described with hairy-cell leukemia, collagen vascular disorders, and atrial myxoma, but, to our knowledge, has not been previously reported with subacute bacterial endocarditis. A patient with enterococcal endocarditis sustained separate intra-abdominal hemorrhages, 24 hours apart, from aneurysms of the middle colic and left colic arteries. Sterile vessel cultures with inflammatory infiltrates, decreased complement levels, positive rheumatoid factor, and arteriographic evidence of multiple visceral aneurysms suggest the vasculitis was immunologically mediated and not mycotic. Antibiotic therapy after control of hemorrhage controlled abdominal symptoms.

Aged↗