Lumbar digit

Case contributed by Dr Shirish Paul

Presentation

Slow-growing swelling in the lower back

Patient Data

Age: 4 years
Gender: Male
X-ray

Osseous structure with clear corticomedullary differentiation (digit) pseudo-articulating with spinous process of L3 vertebra. There is another small osseous structure pseudo-articulating with this digit posteriorly (phalanx).

Multilevel spina bifida noted from L2 to S1.

Case Discussion

A lumbar digit is an extremely rare developmental anomaly. It is usually associated with one or more pseudo-articulations.

It must be differentiated from heterotopic ossification, osteochondroma, and traumatic avulsion injuries.

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Case information

rID: 55538
Case created: 12th Sep 2017
Last edited: 19th Sep 2017
Inclusion in quiz mode: Included

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