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Comparative analysis of three common imaging modalities for nasolabial cysts
Shengyang Liu1, Dingqian Hao1, Liang Yu1
1Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Shandong University, Jinan, Shandong, China.
Objective:
To compare the clinical diagnostic value of ultrasonography (USG), computed tomography (CT), and magnetic resonance imaging (MRI) for nasolabial cysts.
Methods:
The clinical and imaging data of 20 patients with 21 nasolabial cysts confirmed surgically and histopathologically were retrospectively analyzed.
Results:
The largest cyst was 3.4 × 2.7 × 2.3 cm, and the smallest cyst was 1.1 × 0.7 × 0.5 cm. All cysts were located in the soft tissue between the nasolabial fold and maxillary bone. USG showed sensitivity of 95%, accuracy of 95%, and a missed diagnosis rate of 5%; CT showed sensitivity of 80%, accuracy of 80%, and a missed diagnosis rate of 20%; and MRI showed sensitivity of 85%, accuracy of 85%, and a missed diagnosis rate of 15%.
Conclusions:
USG showed higher sensitivity and accuracy and a lower missed diagnosis rate than CT and MRI. Therefore, USG is worth popularizing on a large scale for the diagnosis of nasolabial cysts.
