Brain abscess caused by pulmonary arteriovenous fistulas without Rendu-Osler-Weber disease.

A 52-year-old man was admitted with a brain abscess in the left basal ganglia. He had a paradoxical brain embolic mechanism owing to a pulmonary arteriovenous fistula (PAVF) and was diagnosed as having a right-to-left shunt by transesophageal echocardiography (TEE) and transcranial color Doppler (TCD) with saline contrast medium. We determined that the brain abscess was caused by the PAVFs without Rendu-Osler-Weber disease.

Acute subdural hematoma after lumboperitoneal shunt placement in patients with normal pressure hydrocephalus.

Acute subdural hematoma (SDH) is a rare but disastrous complication after lumboperitoneal shunt placement. Four of 206 adult patients with normal pressure hydrocephalus (1.9%) who underwent lumboperitoneal shunt placement suffered acute SDH following head trauma.

Carotid rete mirabile presenting subarachnoid haemorrhage. Report Of two cases.

Carotid rete mirabile (CRM) consists of arterial channels between the internal and external carotid arteries in some lower mammals. It is a very rare pathological condition in humans. We report two patients who presented with clinical signs of subarachnoid haemorrhage (SAH).

Initial and postoperative hyponatremia associated with pituitary adenoma: a case report.

This 67 year-old man experienced 3 episodes of symptomatic hyponatraemia. Radiological examination revealed a sellar lesion and the tumour was removed via the transsphenoidal route. Thereafter, he simultaneously developed intractable diabetes insipidus and serious hyponatraemia with persistent natriuresis.

Cerebellar porencephaly in an adult--case report.

A 51-year-old female presented with an extremely unusual cerebellar porencephalic lesion manifesting as progressive cerebellar signs and cranial nerve pareses. T1-weighted magnetic resonance imaging demonstrated a low-signal-intensity area in the left cerebellar hemisphere suggesting a cavity communicating with the fourth ventricle. Histological study showed the wall of the cavity contained nonspecific gliosis.