Efficacy of Perfusion Computed Tomography (PCT) in Differentiating High-Grade Gliomas from Low Grade Gliomas, Lymphomas, Metastases and Abscess.

Introduction: Tumoural angioneogenesis and its quantification are important in predicting the tumour grade and in the management with respect to the treatment available and to assess the response to treatment and the prognosis. It also plays major role in the growth and spread of tumours. Hence, a need arises for non-invasive in vivo methods to assess tumour angioneogenesis and tumour grade at the time of presentation and for monitoring the response during treatment and follow up.

Bilateral sclerosing orbital pseudotumour in an adult.

Sclerosing pseudotumour of the orbit is a rare idiopathic chronic inflammatory process, which greatly mimics neoplasms both clinically and on imaging studies. It is therefore important to differentiate this entity from true neoplasms and to rule out any systemic associations. We present a rare case of sclerosing orbital pseudotumour in an adult man with no systemic illnesses who presented with painless progressive proptosis of both eyes and showed a gradual initial response to steroid therapy but relapsed after a 2-year interval.

A rare case of racemose neurocysticercosis of the posterior fossa.

A 43-year-old man presented with a 3 month history of headache, vertigo and swaying while walking. MRI of the brain showed cystic lesions involving the cerebellopontine angle cisterns, the right perimedullary cistern, the fourth ventricle and bilateral foramen of Luschka with resultant obstruction to cerebrospinal fluid outflow and hydrocephalus. The patient underwent right retromastoid craniotomy with endoscopic third ventriculostomy for cyst excision.