ARMC5 and neoplasm: Meningioma is, at present, the only other tumor type besides PBMAH, for which molecular studies suggest a causative role for ARMC5. Somatic tumoral ARMC5 alterations were not identified in breast, parathyroid, thyroid tumors or pancreatic NET from PBMAH patients with a germline ARMC5 pathogenic variant [22, 38].