[Morphology of the parathyroid glands. A study of 146 samples and review of the literature]. / Morfología de las glándulas paratiroides. Estudio de 146 muestras y revisión de la literatura.

Parathyroid hyperfunction condition has a very diverse and unspecific symptoms and signs. We have performed an anatomopathologic study of 146 parathyroid gland from patients diagnosed from hyperparathyroidism. About a 72.6% of the patients presented a parathyroid adenoma while in the rest 27.4% it was observed principal cells hyperplasia. Up to now we have not registered any cases of parathyroid carcinoma after anatomopathological exam of the removed gland. The mayority of the adenomas (85%) were found on the lower parathyroids and its size varied between 6 mm and 5 cm. In one case an double adenoma was diagnosed and in another two cases the adenoma was located in the superior mediastine.

[Granular cell tumor of the tongue (Abrikossoff's tumor). Report of a case and review of the literature]. / Tumor de células granulares lingual (tumor de Abrikossoff). Presentación de un caso y revisión de la literatura.

Granular cell tumor, myoblastoma or Abrikossoff's tumor is an uncommon benign lesion, usually of slow-growing, that shows a predilection for the oral cavity, especially the tongue. Its real etiopathogenia remains still controversial and in it's histogenesis have been implicated several cell types. We report the case of a 18 years old woman with that diagnosis, confirmed in AP, who was operated by removal of the tumoration that was located in the left half-tongue. After 28 months she has not suffered any recurrences.

[Malacoplakia associated with adenocarcinoma of the rectum: clinico-pathologic and ultrastructural study]. / Malacoplaquia asociada con adenocarcinoma rectal: estudio clínico-patológico y ultraestructural.

A case of malacoplakia associated with rectal adenocarcinoma is reported. Optical and electron microscopic study disclosed a histiocytic infiltrate adjacent to the adenocarcinoma containing spherical and concentric inclusions designated as Michaelis-Gutmann bodies. The pathogenesis is discussed and the literature is reviewed.