The Anteater Nose Sign



The anteater nose sign is caused by a tubular elongation of the anterior process of the calcaneus that approaches or overlaps the navicular bone and resembles the nose of an anteater on a lateral foot or ankle radiograph.

This sign is seen in patients with calcaneo-navicular tarsal coalition and a calcaneo-navicular bar (the anteater nose), which is an osseous bar or anomalous articulation between the anterior process of the calcaneus and the navicular bone.

Anteator

1 comment:

sahar saleem said...

An interesting well-illustrated case!