GLI1 and pemphigus foliaceus: Genetic mutations involving glioma-associated oncogene homologue 1 (GLI1) and metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) have been identified in a subset of PF cases [54, 59], with GLI1 gene translocation reported in 6 cases (24%) and GLI1 polysomy reported in 2 cases (8%), out of overall 25 cases with GLI1 genetic analysis [54, 59, 78].