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Case Reports
. 1998 Oct;19(9):1796-8.

Fossa navicularis magna

A Beltramello  1 , G Puppini, G El-Dalati, M Girelli, R Cerini, A Sbarbati, P Pacini
Affiliations
Case Reports

Fossa navicularis magna

A Beltramello et al. AJNR Am J Neuroradiol. 1998 Oct.

Abstract

A notchlike bone defect in the basiocciput due to a prominent fossa navicularis was incidentally discovered in a patient referred for radiologic evaluation of sinusitis. MR images showed that the osseous defect was filled with lymphoid tissue of the pharyngeal tonsil. The occurrence of this anatomic variant is discussed, with reference to ancient anatomic works.

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