Intraosseous lipoma of the hamate

Case contributed by Bahman Rasuli
Diagnosis certain

Presentation

Incidental finding.

Patient Data

Age: 40 years
Gender: Female

Well delineated lucent multiloculated lesion involving the hamate.

A well-delineated high signal (on T1/T2 sequences) intraosseous lesion in the hamate with thin internal septations, which shows signal drop on PD fat suppression sequences

A focal central high signal (on T2/PD fs) area at hamate hook suggests the presence of fluid raising suspicion of cystic degeneration component.

Case Discussion

Intraosseous lipomas have a characteristic appearance in imaging studies. They belong to the classical "don't touch" lesions of the bone.

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