Knowledge of diabetes mellitus and safe practices during Ramadan fasting among Muslim patients with diabetes mellitus in Singapore.

Introduction: This study aimed to explore the level of knowledge of Muslim patients with diabetes mellitus (DM) regarding DM and the self-management of DM when fasting during Ramadan.

Methods: Muslim patients with DM attending the Diabetes Centre of Singapore General Hospital, Singapore, were surveyed on their knowledge of DM and self-management of DM when fasting during Ramadan. Data on patient demographics, DM history and management of DM during the previous Ramadan was also collected.

Carbimazole-induced myositis in the treatment of Graves' disease: a complication in genetically susceptible individuals?

A 24-year-old Chinese woman with Graves' disease presented with myositis two months after treatment with carbimazole. The patient's myositis resolved with hydration and cessation of carbimazole. No other causes of myositis were found, and a change in the medication to propylthiouracil was uneventful.

Dopamine-secreting carotid body paragangliomas-biochemical control with radiotherapy.

Head and neck paragangliomas that are exclusively or predominantly dopamine-secreting are rare. Surgery and/or radiotherapy are modalities for locoregional tumoral control. Little is known about the efficacy of radiotherapy for biochemical control in such tumors.

Insulinoma in a patient with normal results from prolonged fast and glucagon-induced hypoglycemia.

Objective: To describe a man with a functioning insulinoma and normal results from two 72-hour fasts who developed hypoglycemia secondary to exaggerated insulin response following glucagon stimulation.

Methods: We report the patient's clinical findings, laboratory findings, and clinical course. We also review the literature for previously reported cases and possible mechanisms.