2012, Number 2
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ABSTRACTIntroduction: Dermoid cyst was described for Cruveilhier in 1829. It´s classified as benign tumors of cranial vault and represents only the 2.4% of this. This is a disembriogenetic tumor due to the inclusion of mesoderm elements in the moment of neural tube closure. Also, have slow growing, more frequently located in the middle line and near of the anterior fontanel, and have minor frequency compared with epidermoid cyst. Externally is a round mass, soft and no displaceable. Clinically are evident the extracranial growth up.
Case report: We show a patient of 18 elderly years, admitted at our hospital for bulkiness at the right parietal region and osteolitic lesion in the cranial bone by X–ray films. Total resection and cranioplasty with metacrilate of methyl was made in the same time for avoiding postsurgical osseous defect. Histological study showed a cyst wall conformed by skin epithelium, annexes, hair follicles, and sebaceous glands. The content was dense with sebaceous material and the final diagnosis was dermoid cyst.
Conclusions: The importance of clinical exam and simple radiological study in all patients with extracranial mass. Also, was considered the differential diagnosis of osteolitic lesions of cranial vault.
Gómez–Sánchez A, Cortes–González P, de la Garza–Castro O, Garza–Rodríguez V, Muraira–González J, Guzmán–López S. Granuloma eosinófilo en el hueso occipital y la silla turca del mismo paciente. Arch Neurocien Mex. 2005;10(4). [citado: 02 de mayo de 2012]. Disponible en: http://www.scielo.org.mx/scielo.php?pid=S01877052005000400009&script=sci_arttext&tlng=pt