Nasolabial cyst: presentation of a clinical case with CT and MR images.
The nasolabial cyst is an uncommon non-odontogenic cyst that develops in the lower region of the nasal ala; its pathogenesis is uncertain. This lesion grows slowly and measures between 1.5 and 3 cm; it is characterized clinically by a floating tumefaction in the nasolabial sulcus, which elevates the upper lip. The diagnosis is based on the clinical findings and, if necessary, image exams. This paper reports a case of a white 48-year-old Brazilian female patient that presented a firm tumor in the left ala of the nose; the clinical features suggested a nasolabial cyst. CT scans revealed an expanding tumor with soft tissue density located in the left ala of the nose. It measured 1.2 cm in diameter and had a clear and well-defined outline; its homogeneous density was about 50 HU. MR images revealed a circular lesion located in soft tissue; T1 and T2 weighted signals were hyperintense, as were images after fat suppression. The diagnosis was a nasolabial cyst, which was confirmed by histopathology after surgery.
Aquilino
Raphael Navarro
RN
Faculdade de Odontologia de Piracicaba, UNICAMP, Brazil.
Bazzo
Vitor José
VJ
Faria
Reinaldo José Antônio
RJ
Eid
Nayene Leocádia Manzutti
NL
Bóscolo
Frab Norberto
FN
D003560:Cysts / Q000175:diagnosis* / Q000601:surgery; D005260:Female; D006801:Humans; D008047:Lip Diseases / Q000175:diagnosis* / Q000601:surgery; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009668:Nose Diseases / Q000175:diagnosis* / Q000601:surgery; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome