Giant plunging ranula: a case report
Kim Seong-Ha, 허경회, 안창현, 박진우, 이원진,
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( Kim Seong-Ha ) - Seoul National University School of Dentistry Department of Oral and Maxillofacial Radiology
허경회 ( Huh Kyung-Hoe ) - Seoul National University School of Dentistry Department of Oral and Maxillofacial Radiology
안창현 ( An Chang-Hyeon ) - Kyungpook National University School of Dentistry Department of Oral and Maxillofacial Radiology
박진우 ( Park Jin-Woo ) - Kyungpook National University School of Dentistry Department of Periodontology
이원진 ( Yi Won-Jin ) - Seoul National University School of Dentistry Department of Oral and Maxillofacial Radiology
KMID : 1024020130430010055
Abstract
A ranula is a bluish, transparent, and thin-walled swelling in the floor of the mouth. They originate from the extravasation and subsequent accumulation of saliva from the sublingual gland. Ranulas are usually limited to the sublingual space but they sometimes extend to the submandibular space and parapharyngeal space, which is defined as a plunging ranula. A 21-year-old woman presented with a complaint of a large swelling in the left submandibular region. On contrast-enhanced CT images, it dissected across the midline, and extended to the parapharyngeal space posteriorly and to the submandibular space inferiorly. Several septa and a fluid-fluid level within the lesion were also demonstrated. We diagnosed this lesion as a ranula rather than cystic hygroma due to the location of its center and its sublingual tail sign. As plunging ranula and cystic hygroma are managed with different surgical approaches, it is important to differentiate them radiologically.
키워드
Ranula; Mouth Floor; Tomography; X-Ray Computed; Contrast Media
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