Nasolabial cyst: presentation of a clinical case with CT and MR images

Abstract

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.

Nonodontogenic cysts of the oral and maxillofacial region: demographic profile in a Brazilian population over a 40-year period

“…In addition, Choi et al [12] reported the occurrence of eight cases of nasolabial cyst over a period of only 1 year and suggested that these cysts may be more common than previously thought. A predominance of nasolabial cysts among females has been reported [5,32], with a female/male ratio ranging from 2.2:1 to 6.1:1 [11][12][13]. Most cases are diagnosed in the fourth and fifth decades of life [3,12,32].…”

“…Regardless of their origin, nOCs tend to grow slowly in size, possibly in response to an increase in luminal hydrostatic pressure [5]. Some lesions may resolve spontaneously, such as palatal cysts of the newborn [6,7], whereas others such as thyroglossal duct cysts present a high recurrence rate if not treated aggressively [8,9].…”

Nasolabial Cyst: Clinical Presentation and Differential Diagnosis

“…Nasolabial cysts do not present any finding on plain radiographs. Computed Tomography and Magnetic Resonance Imaging can reveal the extent and relation of lesion to surrounding structures [3][4][5][6]. Histopathologically the cyst is lined with pseudostratified columnar epithelium and occasionally a stratified squamous epithelium [1,7].…”

Nasolabial Cyst: MRI Findings: Case Report

“…1951'de Ra o, nazolabial kist is mi ni ilk ola rak kullan mış tır ve söz ko nu su kist ler bu isim le ad lan dı -rıl ma ya de vam edil mek te dir. 4,5 1953'te Kles tadt nazolabial kist le rin or ta-la teral na zal çı kın tı ve mak sil lar çı kın tı füz yon hat tın -da yer alan em bri yo lo jik ek to der mal epi tel ar tı ğın dan ge liş ti ği ni ile ri sür müş tür. 1920'de ise Brug ge man bu kist le rin em bri yo lo jik dö nem de naso lak ri mal ka na lı oluş tu ran ve na sal-mak sil ler şiş-lik le rin ara sın da bu lu nan na so lak ri mal çen ti ğin ön alt par ça sın da ki em bri yo nel hüc re ar tık la rın dan geliş ti ği fik ri ni or ta ya at mış tır.…”

“…4 T1 ve T2 ağır lık lı se kans lar da hi pe rin tens sin yal özel-li ği sap ta mış lar ve T1 ağır lık lı se kans lar da ki hi perin tens gö rü nü mün kis tin pro te in içe ri ği ne bağ lı ol du ğu nu be lirt miş ler dir. Bi zim ol gu muz da ise nazolabial kist, T1 ağır lık lı se kans lar da ha fif hi pe rintens ve T2 ağır lık lı se kans lar da hi pe rin tens sin yal özel li ği gös ter miş tir.…”