Five cases of renal cell carcinoma of clear cell type are presented, Fuhrmann's grade 2, associated with a peculiar stromal proliferation having angioleiomyoma-like features. This proliferation was particularly prominent at the interphase between the tumor edge and the surrounding normal tissues, in which it acquired the configuration of a tumor capsule. Four similar cases were taken from the literature. We postulate that this angioleiomyoma-like change is a tumor epiphenomenon and that it represents yet another manifestation of the well-documented capacity of renal cell carcinoma to induce vascular proliferation, probably through the secretion of angiogenic and other growth factors by the tumor cells.

This report describes what is, to the authors' knowledge, the first case of disseminated E. cuniculi infection in a kidney transplant human immunodeficiency virus-negative patient from Mexico.

Uncommon conditions such as pernicious anaemia and hypertrophic gastropathies have been considered as risk factors for gastric cancer; however, the exact increase in risk is unknown. Menetrier's disease is a rare hyperproliferative disorder of the stomach caused by an overexpression of tumour growth factor α, a ligand for the tyrokinase epidermal growth factor receptor, resulting in a selective expansion of surface mucous cells in the body and fundus of the stomach. There have been nearly 200 cases of Menetrier's disease reported in the literature yet less than 15 have been associated with gastric adenocarcinoma. Here, we report an early stage gastric adenocarcinoma detected incidentally in a patient recently diagnosed with Menetrier's disease.

No abstract