Epithelial remnants are commonly found in the oral cavity, thyroid gland, and other regions like the urinary tract and gastrointestinal system. For instance, in the oral cavity, remnants of the dental lamina can persist and potentially form odontogenic cysts or tumors. Similarly, in the thyroid gland, remnants of the thyroglossal duct can lead to the development of thyroglossal duct cysts.
