title: Venous vascular malformation of the floor of mouth masquerading as a dermoid tumor.
abstract: Venous vascular malformations (VVMs) are described as abnormal post-capillary lesions which exhibit low flow. These are typically malleable and may grow with endocrine fluctuations. A VVM that mimics the classic appearance of dermoid tumor on imaging has never been reported. We encountered a 43-year-old woman with intermittent dysphagia relating to a firm submandibular mass. Physical exam and cross-sectional imaging revealed features consistent with variant dermoid cyst. However, catheter angiography eventually demonstrated a VVM which possessed vessels of variable size and partial thrombosis. We report the case and propose that catheter angiography remains important in cases where vascular malformation is considered.
authors: Joint Department of Medical Imaging, University Health Network, 263 McCaul St, Toronto, ON. Electronic address: adam.dmytriw@uhn.ca.
authors: Adam A
authors: AA
authors: Dmytriw
authors: Department of Otolaryngology/Head & Neck Surgery, Princess Margaret Hospital, 610 University Ave, Toronto, ON.
authors: Jin Soo A
authors: JS
authors: Song
authors: Department of Otolaryngology/Head & Neck Surgery, Princess Margaret Hospital, 610 University Ave, Toronto, ON.
authors: Patrick
authors: P
authors: Gullane
authors: Joint Department of Medical Imaging, University Health Network, 263 McCaul St, Toronto, ON.
authors: Karel G
authors: KG
authors: terBrugge
authors: Joint Department of Medical Imaging, University Health Network, 263 McCaul St, Toronto, ON.
authors: Eugene
authors: E
authors: Yu
mesh_terms: D000328:Adult; D003884:Dermoid Cyst / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D009060:Mouth Floor / Q000000981:diagnostic imaging*; D009062:Mouth Neoplasms / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed; D054079:Vascular Malformations / Q000000981:diagnostic imaging*