[Primary hyperparathyroidism due to an intrathoracic parathyroid adenoma. - A case report and review of the literature].

A 72 year old gentleman presented to the emergency department with symptoms of diffuse joint and muscular pain, fatigue and diminished memory. Serum calcium and parathyroid hormone levels were raised, consistent with primary hyperparathyroidism. No abnormality was found on an ultrasound scan of the neck.