2025年 · 第105卷第36期

A 7-year-old male was admitted to hospital for "nasal congestion with runny nose for 1 week". He had a history of recurrent sinusitis for 2 years and denied craniofacial trauma and developmental abnormalities. Sinus CT axial plain scan (Figure 1) and three-dimensional post-processing image (Figure 2) showed a dense shadow (white arrow) visible in the nasal cavity, with a slightly lower central density, showing pulp-like manifestations. The left inferior turbinate (yellow arrow) was compressed and depressed, suggesting that ectopic teeth may exist for a long time, which has caused nasal cavity obstruction and local structural changes. In addition, the imaging findings suggested left nasal obstruction with sinusitis. Nasal endoscopy showed a pale red mass in the left lower nasal passage, which was hard in texture and firmly adhered to the left nasal floor (Figure 3). The child underwent transnasal endoscopic ectopic teeth resection. During the operation, a tooth-like hard object was removed, with a general shape of crown and part of root shape, which was confirmed to be a tooth structure (Figure 4), supporting the diagnosis of ectopic teeth in the nasal cavity. After 4 months follow-up, there was no recurrence of sinusitis in the children, and no obvious residual or recurrent lesions were found in the imaging examination.