2020 April Fools' Case: Normally we'd prank you with this but given the current COVID-19 crisis we decided just to release it straight up without trying to trick anyone. Hopefully you can at least still enjoy a little laugh at this difficult time - view case

Aneurysmal bone cyst of ischium

Case contributed by Dr David Cuete

Patient Data

Age: 8 years
Gender: Male
Nuclear medicine

Mild uptake of the radiopharmaceutical in left ischio-pubic region.

Large expansile and lucent  bone lesion in the inferior pubic ramus and ischium with internal septa. It  well-defined margins and measures approximately 4.5 x 2.9 x 8.3 cm.
There are some areas of cortical interruption in its inferolateral aspect without overlying periosteal rnew bone formation.

No associated soft tissue abnormalities.

Preserved bone density.

Case Discussion

Septate and expansile - lucent lesion located in the left ischium/ inferior pubic ramus. There is a broad differential for this appearance, although aneurysmal bone cyst is high on the list.

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Case information

rID: 25957
Published: 18th Nov 2013
Last edited: 22nd Feb 2020
Inclusion in quiz mode: Included

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