Calcaneal bone cyst (unicameral bone cyst)

Case contributed by Dr Ammar Haouimi


Posttraumatic pain of the right ankle

Patient Data

Age: 25 years
Gender: Male

There is a well-defined radio-lucent lesion of the calcaneus with thin sclerotic margins, and thinning of the adjacent cortex. No periosteal reaction or cortical breach is seen.

The previously described calcaneal lucent lesion shows a homogeneous central fluid attenuation (15 HU) with no fluid-fluid level, fatty component or central calcification.

Case Discussion

X-rays and CT scan are highly suggestive of an incidental simple bone cyst also known as a unicameral bone cyst.

On simple x-rays, a lipoma, and pseudocyst should be included in the differential diagnosis. 

Additional contributor: R. Bouguelaa, ND

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Case information

rID: 66294
Published: 13th Feb 2019
Last edited: 14th Mar 2021
Inclusion in quiz mode: Included
Institution: Aurès Medical Imaging Center - Batna Algeria

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