Keywords: BCC, basal cell carcinoma; BCNS, basal cell nevus syndrome; Gorlin syndrome; IBCC, infundibulocystic basal cell carcinoma; MHIBCC, multiple hereditary infundibulocystic basal cell carcinoma syndrome; PTCH, patched tumor suppressor; SUFU; SUFU, suppressor of fused homolog; VUS, variant of uncertain significance; basal cell nevus syndrome; dermoscopy; eyelid margin; infundibulocystic basal cell carcinoma; moniliform blepharosis; multiple hereditary infundibulocystic basal cell carcinoma syndrome; nevoid basal cell carcinoma syndrome; novel SUFU gene; variant of uncertain significance.