Oncocytoma of the parotid gland causing false-positive result on I-131 whole-body scintigraphy.

A 50-year-old patient underwent near-total thyroidectomy in 1997 because of a T₁N₀M₀ follicular carcinoma in the right lobe of the thyroid gland, followed by I-131 ablation (3700 MBq). Follow-up of I-131 whole-body scintigraphy after 9 years showed pathologic uptake at the left side of the neck. Histopathologic analyses of the resected specimen suggested a cystic metastasis within the parotid gland, probably originating from thyroid carcinoma.

Gastrointestinal motor mechanisms in hyperglycaemia induced delayed gastric emptying in type I diabetes mellitus.

Background: Hyperglycaemia delays gastric emptying, both in healthy controls and in patients with diabetes mellitus. The effect of hyperglycaemia on antroduodenal motility in diabetes has not yet been studied.

Aim: To investigate the gastrointestinal motor mechanisms involved in the hyperglycaemia induced retardation of gastric emptying in patients with type I diabetes mellitus and autonomic neuropathy.