The role of melatonin in patients with chronic kidney disease undergoing haemodialysis.

Patients with chronic kidney disease including those undergoing haemodialysis have deranged sleep-wake pattern. In large part this is due to an abnormal circadian cycle of melatonin, a hormone secreted by the pineal gland in the evening and induces sleep. Subjects undergoing automated peritoneal dialysis or nocturnal haemodialysis have better sleep profile compared to those on daytime dialysis.

Intramuscular hemangioma of the masseter muscle: a case report.

Intramuscular hemangiomas are uncommon neoplasm's arising most frequently in the masseter and trapezius muscle. Due to it's location it is often mistaken for a parotid swelling and rarely is an accurate pre-operative diagnosis achieved clinically. The intra masseteric location also poses special problem in terms of proximity to the facial nerve and the post operative flattening following excision of the masseter muscle.