Dermoid cyst of the posterior fossa associated with congenital dermal sinus in a child.

World Journal of Pediatrics : WJP
Chun-Quan CaiChun-Xiang Wang

Abstract

Intracranial dermoid cysts are congenital benign neoplasms. Hydrocephalus and abscess as the principal manifestations of the posterior fossa dermoid cyst are rare. We present a case of obstructive hydrocephalus and abscess induced by an adjacent dermoid cyst with occipital dermal sinus. A 2-year-old girl presented with headache and vomiting. Physical examination showed nothing abnormal except for a small subcutaneous nodule above the occipital protuberance with a small skin opening. She had no neurological deficits. Neuroradiological studies including CT and MRI showed a cyst located in the posterior fossa. The cyst in the posterior fossa with occipital dermal sinus was diagnosed. She was treated by radical excision of the occipital cyst through a suboccipital approach, and was followed up. Histopathologic examination suggested a dermoid cyst with an abscess. Bacterial investigation revealed Staphylococcus epidermidis, and appropriate systemic antibiotic therapy was given. The child recovered and a 2-year follow-up was uneventful. Posterior fossa dermoid cyst should be considered in all children with occipital skin lesions, especially dermal sinus. CT and MRI scan are helpful in the diagnosis of the lesion. Neurosurgical treatm...Continue Reading

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Citations

Nov 29, 2012·Journal of Neurosciences in Rural Practice·Umesh SrikanthaRavi Gopal Varma
Jan 5, 2016·Archives de pédiatrie : organe officiel de la Sociéte française de pédiatrie·I MaaloulM Hachicha
Mar 28, 2013·British Journal of Neurosurgery·Avanali RaghunathSampath Somanna
Jul 30, 2016·Pediatric Dermatology·Khadija SellamiHamida Turki
Oct 18, 2018·Wiley Interdisciplinary Reviews. Systems Biology and Medicine·Ameneh Asgari-Targhi, Elizabeth B Klerman
Jun 19, 2021·The American Journal of Emergency Medicine·Daphne PoratWesley Eilbert

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