Background: Dermoid cysts are cystic inclusion tumors. They comprise hair follicles, sweat glands, and sebaceous glands. They have lining of stratified squamous epithelium. The most common areas involved are face, lower back, and ovaries. Congenital cystic dermoid involving the anterior fontanelle with no intracranial extension is a rare scalp swelling. We present a case of dermoid cyst with no intracranial extension.
Case description: We report a case of 4-month-old child presented with a history of a scalp swelling since birth. The swelling increased in size progressively. Magnetic resonance imaging of the brain revealed extracranial cystic lesion over anterior fontanelle with no intracranial extension. Cyst was excised completely with no postoperative complications. On histopathology it was dermoid cyst.
Conclusion: To the best of our knowledge, congenital dermoid cyst of the anterior fontanelles is rare. Complete surgical excision is the treatment of choice.
Keywords: Anterior fontanelle; cyst; dermoid; scalp.