[Malignant oncocytoma of the parotid gland. Study with the optical and the electron microscope]. / Oncocitoma maligno de glándula parótida. Estudio con microscopio óptico y electrónico.

Salivary gland oncocytomas are very rare tumors with very few malignant cases reported in the literature. We present in this work a malignant oncocytoma of the parotid gland, and make a summary of all the accepted criteria in the reviewed publications as definitive of oncocytoma and malignant oncocytoma of the salivary gland, and furthermore we make a differential diagnosis with other neoplasms.

[Cerebral metastasis, idiopathic pneumoperitoneum and obstructive jaundice as clinical manifestations of carcinoma of the pancreas]. / Metástasis cerebral, neumoperitoneo idiopático e ictericia obstructiva, como manifestaciones clínicas de un carcinoma de páncreas.

A case of undifferentiated pancreatic carcinoma is described. The first symptoms were due to brain metastases and was then diagnosed as malignant glioma. The appearance of a sudden obstructive jaundice and pneumoperitoneum without any apparent cause led to the diagnosis of undifferentiated pancreatic carcinoma and peritoneal carcinomatosis, that was confirmed by the anatomicopathological study.