This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Orbit, Subject name: Ophthalmology
A biopsy was performed for a patient with recurrent chalazion involving the upper lid. The most likely diagnosis on histopathology is: 
Select and explain. 
A. Sebaceous cell carcinoma, B. Basal cell carcinoma, C. Squamous cell carcinoma, D. Malignant Melanoma
A: Sebaceous cell carcinoma
Answer: A: Sebaceous cell carcinoma 
Explanation: Ans. (a) Sebaceous cell carcinomaRef: Kanski 7/e, p. 21, 4Sebaceous Gland Carcinoma* Typically arises from meibomian glands or glands of ZeisQ* Most frequently arises from the upper eyelids[?] where meibomian gland are most frequent (in contrast to basal cell and squamous cell carcinoma)* Highly malignant with mortality of 5-10%* Elderly females are typically affected.* Nodular SGC masquerades a 'chalazion' and hence any patient with recurrent chalazion with an unusual consistency should undergo a full thickness resection and histological examination to exclude SGC.