Giant nasal rhinolith.

Nasopharyngeal rhinoliths are uncommon lesions that result from the complete or partial encrustation of an intranasal foreign body with mineral salts , mainly calcium and magnesium [1]. The first radiologic diagnosis of a rhinolith was made by Mac intyre (1900) [2] , only 4 years after Roentgen 's discovery of x-rays . Rad iology is an invaluable investigation in the diagnosis of foreign bodies , and this is parti c ularly true for rhinoliths. Foreign bodies of high rad iodensity are easily identified and localized using conventional radiography; however, tomography and especially computed tomography (CT) , may be extremely helpful in localizing foreign bodies of lower radiodensity . We present a patient with a giant nasa l rhinolith, with a discussion of the c linical and radiologic features.