THE PINEAL PARENCHYMAL NEOPLASMS - A CLINICOPATHOLOGICAL STUDY OF FOUR TUMOURS.

Tumours of pineocytes are rare intracranial tumours. They are suspected once the effects of compression of neighbouring structures manifest. Four pineocytic neoplasms are reported, of which one was a spinal metastasis. Clinical features and radiological appearances are described. Histopathological diagnosis was based upon cytoarchitectural patterns which are discussed. Surprisingly all four cases occurred in a period of one month.