A Rare Case of Epidermal Inclusion Cyst of Thyroid Gland

Abstract

The thyroid lesions comprise developmental, degenerative, cystic, non-neoplastic, and neoplastic etiology. Among cystic lesions of thyroid colloid cyst, papillary carcinoma of thyroid, thyroglossal cyst, and rarely epidermal cyst can be present. Epidermal inclusion cyst, though a common entity, is extremely rare in the thyroid gland and thought to arise from foci of squamous metaplasia. We report a rare case of inclusion epidermal cyst diagnosed on cytology and confirmed by histopathology.

Keywords

• epidermal inclusion cyst
• thyroid gland