Acute and reversible fatty metamorphosis of cultured rat hepatocytes.

Rat hepatocyte cell line M6, B347 and J525, among which only M6 is slightly deviated from diploidy, showed marked microvesicular fatty metamorphosis in response to treatment with Tweens at concentrations of 0.05-0.025% in Eagle's minimum essential medium (MEM).

Expression of immunoreactivities to 75 kDa nerve growth factor receptor, trk gene product and phosphotyrosine in granular cell tumors.

Nineteen granular cell tumors (GCT) of adults, two congenital granular cell epulides and five epulides fibrosae were immunohistochemically examined to detect the expression of 75 kDa nerve growth factor receptor (NGFR), trk gene product, phosphotyrosine (PT), protein gene product 9.5 (PGP9.5) and S-100 protein.

A case of glomangiosarcoma.

A case of glomangiosarcoma (GS) arising on the lateral side of the left upper arm is reported here. GS is very rare compared with benign glomus tumor (GT) and there has been some controversy regarding whether it is a true malignant tumor. Histologically, the tumor consisted of two different components.

Neoplastic endocrine cells in prostatic carcinoma: a case report with immunocytochemical and electron microscopic findings.

A case of a 68-year-old male with prostatic carcinoma which was partially well differentiated but largely poorly differentiated is presented in this report. The poorly differentiated area of the adenocarcinoma seemed to arise from the well-differentiated portion. The former was populated with Grimelius argyrophilic cells, and occasionally contained round, eosinophilic intracytoplasmic inclusions which appeared to be composed of a secretory substance.