Macronodular adrenal hyperplasia

Case contributed by Dalia Ibrahim
Diagnosis almost certain

Presentation

Abdominal pain and constipation.

Patient Data

Age: 45 years
Gender: Female

Bilateral multiple large adrenal nodules with maintained adreniform shape. They elicit adenoma-like signal being of isointense signal on T1 and T2 with signal drop on the out of phase, diffusion restriction, and mild post-contrast enhancement.

Case Discussion

Macronodular adrenal hyperplasia refers to a morphological type of adrenal hyperplasia in which there is adrenal enlargement in the form of large distinct nodules. It can be congenital or acquired.

A specific subtype under this entity is adrenocorticotropin independent macronodular adrenocortical hyperplasia (AIMAH).

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