Squamous cell carcinoma: pain as a clue to increased tumour diameter, increased invasion depth, the grade of differentiation, acantholysis and perineural invasion. - Pyne, J. H.; Myint, E.; Clark, S. P.; Clifopoulos, C.; Fishburn, P.; Gorji, M.; Hou, R. (Clinical & Experimental Dermatology, 2020)