Pelvic digit (11th finger)

Case contributed by Dr Aneta Kecler-Pietrzyk


Abdominal pain. No prior medical or surgical history.

Patient Data

Age: 50 years
Gender: Female

Osseous linear structure divided into three segments joined by pseudo-articulations within left abdominal wall soft tissue, arising from the level of pubic symphysis, representing a pelvic/abdominal digit.

Right paraumbilical hernia containing loops of bowel.

Infrarenal IVC filter in situ.

Case Discussion

Pelvic/abdominal digit (a.k.a. 11th finger) is a rare abnormality in which osseous tissue forms usually linear structures within pelvic or abdominal soft tissues. It is thought to be formed during embryogenesis from non-fusion of the vertebral column with the superior coccygeal bone. It is of no clinical significance, and usually an incidental finding. 

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Case information

rID: 53130
Published: 2nd May 2017
Last edited: 27th Mar 2020
Inclusion in quiz mode: Included

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