Abscess formation within a Rathke's cleft cyst.

We report and discuss the rare case of a pituitary abscess forming within a Rathke's cleft cyst (RCC). A 66-year-old gentleman presented with visual deterioration and symptoms suggestive of hypopituitarism. The patient underwent transsphenoidal debulking of the lesion whereupon purulent material was discovered.

An unusual case of ectopic prostate tissue in an intradural lipoma of the conus medullaris.

We report the first case of ectopic prostate tissue in a lipoma of the spine. Ectopic prostate tissue is well documented at a number of sites within the human body. Ectopic prostate tissue has previously been reported in the spine but usually in the context of spinal teratomas.

Recurrence of fourth ventricular choroid plexus papilloma with late occurrence of a spinal drop metastasis.

Choroid plexus papillomas are rare tumours, which occasionally spread both intracranially and down the spinal canal. Spinal metastasis has been reported infrequently and only once many years since the initial diagnosis. This is the first reported case of late recurrence, metastasis and transformation of a benign to an atypical lesion.

Radiologic follow-up of non-functioning pituitary adenomas: rationale and cost effectiveness.

Patients with non-functioning pituitary adenomas (NFPAs) are followed-up with serial endocrine, ophthalmologic and radiological assessment. There is a lack of evidence based guidance regarding the frequency and duration of radiological assessment during follow-up. We retrospectively analysed the details of follow-up radiological scanning in a cohort of patients diagnosed with NFPAs in an attempt to devise a rational and cost effective scanning schedule for use in routine clinical practice.