[Metastasis to the pituitary stalk in a case of breast cancer]. / Métastase de la tige pituitaire au cours d'un cancer du sein.

A 64-year old woman with breast cancer developed diabetes insipidus. CT scan showed thickening and contrast enhancement of the pituitary stalk highly suggestive of metastasis. The patient was successfully treated with desmopressin followed by external radiation therapy.

[Spinal cord congenital epidermoid cyst (a dorsal case)]. / Kyste epidermoïde congénital médullaire (un cas dorsal).

A 18 year-old man had a progressive paraparesis over a two months period due to a thoracic intramedullary epidermoid cyst. Surgical removal of the cyst was followed by a dramatic improvement. The frequency, the clinical manifestations and the congenital or acquired nature of the dermoid and epidermoid intraspinal cysts are reviewed. The possibilities and the limits of the surgical treatment of this rare intraspinal benign tumors are discussed.