Accessory navicular syndrome

Case contributed by Dr Bahman Rasuli

Presentation

Medial foot pain.

Patient Data

Age: 35 years
Gender: Male
MRI

There is an accessory bone located on the posteromedial tuberosity of the navicular bone. The accessory bone has a cartilaginous connection to the navicular consistent with a type 2 accessory navicular with minor bone edema at the synchondrosis.

The tibialis posterior tendon appears normal. 

Case Discussion

Accessory navicular bone is also known as os tibiale externum or os naviculare and is considered a normal anatomical variant; although it can be painful (accessory navicular syndrome) and may cause a painful tendinosis of adjacent tendons.

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Case information

rID: 64000
Published: 30th Oct 2018
Last edited: 2nd Nov 2018
Inclusion in quiz mode: Included
Institution: Jame Jam Imaging Center

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