[Tetraventricular ependymoma. Presentation of a case]

The clinical study of encephalic ependymoma shows that cases present with polymorphous clinical pictures depending on intra and/or periventricular tumoural growth, generally such as to hinder precise diagnosis during life, unless under direct control, or, currently, using computerized axial tomography. The reported case, completed by macro and microscopic autoptic study, takes on particular importance because the neoplasia involved all encephalic ventricular cavities. This exceptional localisation and extension, only gave an aspecific clinical picture, dominated by the presence of a slight internal communicating type hydrocephalus and immediate general convulsive signs.

[Myxomas of the jaws. 10 cases and differential diagnostic evaluations]

Ten cases of myxoma of the jaw bones are presented. After an examination of the anatomical-clinical-radiological aspects and the micro- and macroscopic pathological anatomy, the authors present a histopathological differential diagnosis and in particular demonstrate that a diagnosis of myxoma is based upon its localization and the exclusion of any benign and malignant lesions due to myxoid. Conservative excision is the preferred treatment.

Myxoid variety of malignant fibrous soft tissue histiocytoma

Three cases of the myxoid variety of malignant fibrous histiocytoma (I.F.M.) of the soft tissues are reported. This condition should be recognised as a separate entity differing from other benign pseudosarcomatous or malignant lesions of the soft tissues in that the myxoid component is present not as an occasional background, but as an integral constituent of the neoplasm. This indicates a more favourable prognosis as compared with other varieties of malignant fibrous histiocytoma.