GLI2 and autosomal erythropoietic protoporphyria: The analysis of previously described candidate gene variants associated with pituitary development allowed us to find three GLI2 variants previously reported in patients with EPP and one variant with no prior description, all inherited from healthy parents, reinforcing the incomplete penetrance pattern of GLI2 variants in the development of EPP, and drawing attention to possible future functional studies of those variants that have recurrent expression in this population.