A cutaneous melanocytoma-acanthoma was diagnosed in a 7-year-old intact female mixed breed dog. Grossly, this tumor was a solitary and darkly pigmented nodule located in the face. Histologically, the lesions consisted of melanocytic and epithelial tumor cells. The melanocytic component consisted predominantly of large round-to-polygonal and heavily pigmented melanocytic cells arranged in nests ...

Hodgson, G. A., and Whiteley, H. J. (1970). Brit. J. industr. Med., 27, 160-166. Personal susceptibility to pitch. During the years 1957 to 1963, 59 cases of hyperplastic squamous lesions were referred to us from a local patent fuel works where ovoids were made by fusing coal dust and pitch together by steam heat. We carried out a survey of all the personnel exposed to the pitch hazard and at t...

Actas Dermosifiliogr. 2009;100:235-48 244 incidence in areas exposed to sunlight in patients with a history of basal or squamous cell carcinoma; b) other carcinogens—frequent occurrence in areas of irradiation, erythema ab igne, or following chronic exposure to arsenic; c) immunosuppression—from treatment in a liver or heart transplant setting or rheumatic diseases; and in patients with hematol...

Galli-Galli disease is a rare acantholytic variant of Dowling-Degos disease, with few cases reported in the literature. We describe a case of Galli-Galli disease and review the literature.

BACKGROUND Acantholytic squamous cell carcinoma (ASCC) is an uncommon histopathologic variant of SCC, characterized by marked acantholysis, wherein the tumor cells demonstrate defective cohesion to one another in the cancer nest leading to a pseudoglandular or pseudovascular appearance. The most common site of ASCC is the sun-exposed areas of the skin. Sporadic cases of ASCC have also been repo...