Squamous cell carcinoma versus malignant proliferating trichilemmal tumor: A histopathological dilemma with review of literature - Charu Agarwal; Mukta Pujani; Sujata Raychaudhuri; Sheetal Arora; Deepshikha Rana; Varsha Chauhan (Wolters Kluwer Medknow Publications, 2019)