Rhinoliths are rare foreign bodies in the nasal cavity formed by the mineralization of foreign material, including teeth, dried blood clots, fruit seeds, beads, buttons, pieces of dirt and pebbles, and the remains of a gauze tampon. 1 As pointed out by Ezsiás, foreign objects in the nose are common, but formation of a rhinolith is rare. 2 We report an unusual and interesting case of rhinolith formation resulting from a plastic object lodged in the nasal cavity for more than 20 years. This case, which we believe is the first report of a hard plastic material forming a nidus for a rhinolith, illustrates that adults can have foreign bodies in their nasal cavity, which date back to their childhood.We examined a 25-year-old woman with a history of right nasal obstruction, intermittent right epistaxis, and a foulsmelling nasal discharge. These symptoms had been present for many years with gradually increasing severity and she had became more aware of them over the past two years. An irregular, moderate, porous, grayish-to-blackish mass along the right nasal floor was noted on physical examination. The mass was covered with some granulation tissue and embedded in the lateral nasal wall. A paranasal computed tomography scan (Fig. 1) revealed a calcified intranasal mass. A rhinolith was extracted in pieces without submucosal resection of the septum, under local anesthesia with the assistance of a rigid endoscope. The specimen consisted of seven pieces. The largest fragment of the specimen resembled a plastic accessory (Fig.
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