Ossification of the pterygospinous ligaments: A Rare incidental normal variant

Ossification of the pterygospinous ligament is a rarely reported finding on computed tomography (CT) imaging despite its high incidence. Its radiologic identification is important not only as an anatomical variant but also in clinical practice as its presence may cause neurological disturbances or interfere with anesthesia and surgical procedures that involve the infratemporal fossa. This case report describes a case of a 45-year-old male who presented with difficulty in breathing and was incidentally found to have ossification of the pterygospinous ligaments bilaterally on multidetector CT (MDCT) imaging of the paranasal sinuses.