Orbital Granuloma is related to polyarteritis nodosa and granulomatosis with polyangiitis. An important gene associated with Orbital Granuloma is PRTN3 (Proteinase 3), and among its related pathways/superpathways is C-MYB transcription factor network. Affiliated tissues include bone, and related phenotype is Negative genetic interaction between PTTG1-/- and PTTG1+/+.