A Rare Case of Cystic Teratoma of the Oral Cavity that Resembles Simple Ranula in MRI

Abstract

Theobjective of this study was to establish a correlation between pathology and radiology diagnosis. Teratoma, as a real neoplasm, contains multiple structures foreign to the originating sites. This study describes a 4-year-old child with a rare instance of sublingual cystic teratoma in the mouth cavity with unusual magnetic resonance imaging (MRI) findings. The MRI revealed a well-marginated lesion in the oral cavity floor, with a strong signal on T2-weighted imaging and an iso signal on T1-weighted imaging, as well as a thick wall and wall enhancement following intravenous contrast injection. The MRI results were linked to an oral cavity congenital cyst with a high proteinaceous substance, indicating an infected ranula. The patient had experienced two failed stages of treatment. Finally, The cyst was surgically removed. The histopathological section of the excised specimen demonstrated a cyst line by epidermoid stratified squamous epithelium and ciliated respiratory mucosa, compatible with maturing cystic teratoma.