Segmental mediolytic arteritis. Not an arteritis but a variant of arterial fibromuscular dysplasia.
Lie
J T
JT
D000783:Aneurysm / Q000473:pathology; D001167:Arteritis / Q000473:pathology*; D005352:Fibromuscular Dysplasia / Q000473:pathology*; D006801:Humans; D012422:Rupture, Spontaneous