Oponiak pseudopiaszczakowaty u psa

This report describes a very rare case of a pseudopsammomatous meningioma (meningioma pattern secretans) in a nine-year-old female dog. The neoplasm, located in the left olfactory groove, was characterized by the PAS-positive granules, so called pseudopsammoma bodies. In many areas of the tumor cells become hyalinized and encrusted with calcium salts. Mammary gland adenocarcinoma with metastases in the lung and in the pituitary glandule was diagnosed and also skin squamous cell carcinoma (cancroid) and pituitary adenoma were recognized in this dog.