Cerebellar pilomyxoid astrocytoma

Pilomyxoid astrocytomas (P.M.A) are new class of Pilocytic Astrocytoma (P.A.) which typically have their origin in hypothalamus and chiasmatic region. There are very few case reports of PMAs arising from cerebellum. Their imaging features are similar to PA but they behave more aggressively than PA. The authors report a case of 10 year old male child who presented with right cerebellar tumour diagnosed as PMA on histopathology.

Transient internuclear ophthalmoparesis associated with mutism following midline cerebellar tumour surgery in an 8-year boy

Mutism and neurobehaviour symptoms are well known features, which may occur following surgical excision of mass lesion of various histopathologies in the posterior cranial fossa, during the postoperative period. Mutism may be rarely associated with ataxia of eyelid closure and paresis of external ocular muscles. However, internuclear ophthalmoparesis is not reported in association with mutism following posterior cranial fossa surgery. We report an 8-year–boy, who developed internuclear ophthalmoparesis following suboccipital craniectomy for decompression of vermian medulloblastoma. The clinical features, aetiopathogenesis, management of transient internuclear ophthalmoparesis associated with mutism and pertinent literature is reviewed in short.

First episode psychosis and an underlying cerebellar tumour

We report on the case of a middle aged lady who was referred by her GP with what appeared to be a case of first episode psychosis. Following assessment and investigation an underlying cerebellar tumour was identified. Our aim is to draw attention to the ongoing debates regarding the possible role of the cerebellum in psychosis and cognition and on neuroimaging as a diagnostic modality in cases of first episode psychosis.