has material basis in germline mutation in SCN11A syndromic disease familial episodic pain syndrome with predominantly lower limb involvement https://www.malacards.org/card/episodic_pain_syndrome_familial_3 FEPS3 episodic pain syndrome, familial, type 3 DOID:0111731 UMLS:C3809899 MONDO:0014247 episodic pain syndrome, familial, 3 Orphanet:391392 A rare, autosomal dominant disorder caused by mutation in the SCN11A gene. It is characterized by intense episodic pain mainly affecting the distal lower extremities in early childhood. The pain diminishes with age. MEDGEN:816229 OMIM:615552 GARD:0017619 NCIT:C125390 familial episodic pain syndrome