“…Other authors observed multiple BCC in patients who had one or several sibs with solitary BCC [Rimbaud et al, 1956; Korn‐Heydt, 1966]. However, because BCC is a very common tumor, such cases may also be explained by chance alone, and the same is true for the reports of familial solitary BCC [Spillmann and Watrin, 1935; Madsen, 1941; Oettle, 1956; Korn‐Heydt, 1966].…”