Cytodiagnosis of Epidermoid Cyst of the Upper Lip: A Common Lesion in an Uncommon Site
A 52-year-old male attended FNAC clinic of our hospital with a globular swelling in the upper lip []. The swelling was present for last 5 years and gradually increasing in size. It was not associated with pain. On physical examination, the size of the swelling was approximately 2.5 cm × 1 cm, cystic, non-tender and soft in consistency. No associated cervical lymphadenopathy was detected.\nWith a clinical diagnosis of mucocele, fine needle aspiration was performed using a 22 gauge needle. Aspiration yielded pultaceous material and the smears were stained with May-Grünwald Giemsa stain. Cytological smears showed many anucleated squames and few benign mature squamous cells in a dirty background []. A cytological diagnosis of epidermoid cyst was made with a recommendation for excision of the swelling and histopathological examination.\nExcision biopsy and histopathological examination of the resected specimen showed a cyst lined by stratified squamous epithelium filled with lamellated keratin []. No skin appendages seen. Thus, hispathological diagnosis of epidermoid cyst was confirmed.