Adrenal adenoma

Case contributed by A.Prof Frank Gaillard

Presentation

Incidental finding in a 35 year old male

Patient Data

Age: 35
Gender: Male
CT

A well defined homogenous nodular mass lesion is seen in left adrenal gland with HU~45 on non-contrast scan.

    MRI

    MRI demonstrates convincing signal dropout in out-of-phase T1 imaging, confirming that this represents an adrenal adenoma

    Also not the signal drop out of the liver consistent with hepatic steatosis.

    Case Discussion

    Adrenal adenoma can be detected on non-contrast scans due to its low HU (<10 HU is highly specific). However, MRI is indicated in ambiguous lesions with higher HU corresponding to soft tissue. Due to microscopic lipid-rich content, signal drop out is seen in opp-phase.

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    Case information

    rID: 10828
    Case created: 26th Sep 2010
    Last edited: 19th Sep 2015
    System: Urogenital
    Inclusion in quiz mode: Included

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