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Results for “Maxillary Neoplasms”

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Exposure-response relationships between woodworking, smoking or passive smoking, and squamous cell neoplasms of the maxillary sinus.

A case-control study of squamous cell neoplasms of the maxillary sinus was performed in Hokkaido during 1982-86, with 169 cases and 338 controls matched for sex, age, and residence. The data were analyzed by a stepwise forward-selection method based on a conditional logistic-regression model without interaction terms, log-likelihood ratio tests, and chi-square tests for trend. Statistically significant linear trends were observed for associations between the risk of squamous-cell maxillary-sinus neoplasms and the duration of woodworking among men, the daily or lifetime amount of smoking among men, and the number of smokers in the household as an index of domestic exposure to cigarette smoke among women.

Adult↗

Oral manifestations of AIDS-associated non-Hodgkin's lymphomas.

While B-cell lymphomas are frequently found in AIDS patients, reports on oral manifestations are rare. Among a group of 465 HIV-infected patients 5 presented with primary oral manifestations of a malignant B-cell lymphoma. The primary site of manifestation was the maxilla in 3 cases and the mandible in 2 cases. Based on the histological and immunohistochemical examination the tumors were differentiated as Burkitt's lymphoma (n = 1), as anaplastic large cell (ALC) lymphoma of the B-cell type (n = 1), as high-grade non-Hodgkin's lymphoma not classifiable according to the Kiel classification (n = 1), as immunoblastic-plasmoblastic lymphoma (n = 1), and as centroblastic lymphoma (n = 1). Serum samples were negative for HTLV-I antibodies in 5/5 cases.

Acquired Immunodeficiency Syndrome↗

Facial fibrosarcoma in two cows.

Fibrosarcoma is a common tumor affecting bone, but is uncommon in cows. Reported here are two bovine cases of facial fibrosarcoma that were very invasive.

Animals↗