Inferior vena cava leiomyosarcoma with liver metastasis at presentation in a young male: A challenging diagnostic quandary.

Leiomyosarcomas of vascular origin are very rare tumors, predominantly affecting the inferior vena cava (IVC). Although vascular leiomyosarcomas are slow-growing, their non-specific and late presentation results in delayed diagnosis which portends a very poor prognosis. Here we report a case of a 24-year-old man who presented with abdominal pain since 15 days and was found to have unresectable metastatic leiomyosarcoma of the inferior vena cava at initial diagnosis.

Histopathological alterations in the brain (optic tectum) of the fresh water teleost Channa punctatus in response to acute and subchronic exposure to the pesticide Chlorpyrifos.

In the present investigation an attempt was made to assess the toxicity of the organophosphate pesticide Chlorpyrifos (0,0-diethyl-0-3,5,6-trichloro-2-pyridyl phosphorothioate; CPF) on the brain (optic tectum) of the teleost Channa punctatus (Bloch). Fish were exposed to acute (1.5, 3.