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Parathyroid adenoma

Case contributed by Mohammad Farghali Ali Tosson
Diagnosis almost certain

Presentation

Pathologically-proven brown tumor of the ulna.

Patient Data

Age: 65 years
Gender: Female
ct

A well-defined lesion seen at the inferior border of the left thyroid lobe, with reduced enhancement compared to the normal thyroid gland in the arterial phase but with greater washout than the thyroid gland in the delayed phase. The lesion measured about 16 x 12 mm with no calcification.

Diffuse decreased density of the imaged skeleton.

Case Discussion

The patient had a pathologically proven brown tumor of the ulna. A parathyroid adenoma was suspected as the underlying cause and was confirmed by CT. 

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