Corneal dermoid in a dog

A 1 year old Shih Tzu dog weighing 5 kg was presented with a complaint of abnormal hair growth in the right eye. Ophthalmic examination revealed a round black coloured hairy lesion on the surface of cornea and bulbar conjunctiva, measuring around 5 mm in diameter in the superior temporal quadrant of the right eye. Superficial keratectomy of the corneal lesion was performed under general anaesthesia. Microscopically, the histopathology of the tissue revealed the presence of an outer stratified squamous epithelium lining and numerous sebaceous glands along with hair follicles and sudoriparous gland within the connective tissue stroma. Based on the histopathological features, the growth was diagnosed as dermoidcyst.