Pituitary microadenoma

Case contributed by Hani M. Al Salam
Diagnosis almost certain


High prolactin level.

Patient Data

Age: 50 years
Gender: Female

The pituitary gland maintains normal size and shape. Notice is made of 0.4 X 0.4 cm right half pituitary gland hypovascular lesion demonstrated only at the contrast dynamic study.

Annotated image


Pituitary microadenoma

Case Discussion

By definition, a microadenoma is less than 10 mm in size. If the same tumor is greater than 10mm in size it is then considered a pituitary macroadenoma. Differences in presentation and imaging merely represent a difference in size rather than any fundamental difference in biology.

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