Dermoid cysts are rare developmental teratomatous lesions composed of ectodermally derived stratified squamous epithelium and mesodermally derived skin adnexal structures. As part of the teratomatous lesion group, dermoid cysts are related to teratoid cysts, true teratomas, and epignathi. Although several theories have been postulated, the pathogenesis of dermoid cysts, and teratomatous lesions in general, is unclear. Most commonly affecting sites within the head and neck, dermoid cysts may be found in the frontotemporal/lateral brow area, central nasal area, oral cavity, lateral neck, and other sites. We present what is believed to be the first reported case arising within the maxillary sinus and briefly discuss the possible pathogenesis.
[Show abstract][Hide abstract] ABSTRACT: Objective: To determine the effectiveness of clinical and cytological diagnosis in congenital cysts located in head and neck. Method: We were carried out a retrospective study of patients with clinical, cytological or histological diagnosis of thyroglossal, branchial and dermoid cyst, assisted in the University Hospital Arnaldo Milián Castro", during five years. It was calculated the sensibility, specificity and security of the clinical diagnosis and the Fine Needle Aspiration Biopsy for each cyst. Result: The security of the clinical diagnosis it was respectively of 94,1%, 92,2% and 98% for the thyroglossal, branchial and dermoid cysts. We find bigger tendency to the clinical error in branchial cysts, where the most frequent confusions are presented with inflammatory linfoadenopathy. The security of the Fine Needle Aspiration Biopsy was of 96,1% and 94,1% for the thyroglossal and branchial cysts respectively. Conclusions: Clinical diagnosis is not enough in occasions, for what is necessary to appeal to means complementary diagnoses, as the Fine Needle Aspiration Biopsy; however this test is not 100% sure. Objetivo: Determinar la efectividad de los diagnósticos clínico y citológico en los quistes congénitos cervicofaciales. Método: Se realizó un estudio retrospectivo de los pacientes con diagnóstico clínico, citológico y/o histológico de quiste tirogloso, branquial y dermoide, atendidos en el Hospital Universitario «Arnaldo Milián Castro», durante cinco años. Se calculó la sensibilidad, especificidad y seguridad del diagnóstico clínico y la biopsia por aspiración con aguja fina (FNAC) para cada quiste. Resultado: La seguridad del diagnóstico clínico fue de 94,1%, 92,2% y 98% para los quistes tirogloso branquial y dermoide respectivamente. Encontramos mayor tendencia al error clínico en los quistes branquiales, donde las confusiones más frecuentes se presentan con linfoadenopatías inflamatorias. La seguridad de la biopsia por aspiración con aguja fina fue de 96,1% y 94,1% para los quistes tirogloso y branquial respectivamente. Conclusiones: El diagnóstico clínico no es suficiente en ocasiones, por lo que es preciso recurrir a medios diagnósticos complementarios, como la biopsia por aspiración con aguja fina; sin embargo esta prueba no es 100% segura.
Revista Espanola de Cirugia Oral y Maxilofacial 01/2004; DOI:10.4321/S1130-05582004000100004
[Show abstract][Hide abstract] ABSTRACT: Dermoid cysts of the jaw bones are very rare. A case of an intraosseous dermoid cyst of the maxilla of a 5-year-old-male is reported. The possible origins are described.
International Journal of Oral and Maxillofacial Surgery 07/2005; 34(4):453-5. DOI:10.1016/j.ijom.2004.10.012 · 1.57 Impact Factor
[Show abstract][Hide abstract] ABSTRACT: In the oral and maxillofacial regions, epidermoid cysts usually develop in the floor of the mouth and rarely in other sites. We describe a case of an epidermoid cyst arising in the right maxillary sinus. A 27-year-old man was referred to our department for swelling in the right buccal region. Computed tomography showed a dense soft-tissue mass that extended widely into the maxillary sinus, resulting in thinning of the cortical bone of the exterior wall of the maxillary sinus. The cyst was enucleated via the intraoral approach with the patient under general anesthesia. Histopathologically, the wall was lined with a thin layer of keratinizing squamous epithelium and fibroma connective tissue with no skin appendages. The diagnosis was an epidermoid cyst. There has been no evidence of recurrence during the 3-year follow-up.
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