title: Cannabis arteritis: ever more important to consider.
abstract: Cannabis arteritis (CA) is a major and underdiagnosed cause of peripheral arterial disease in young patients. A 34-year-old man, daily smoker of 20 cigarettes and two cannabis cigarettes for 14 years, presented with a necrotic plaque of left hallux for 3 weeks. The Doppler ultrasound and angiography were compatible with severe Buerger's disease. Submitted to a revascularisation procedure and hypocoagulation with rivaroxaban. He had ceased smoking but maintained consumption of cannabis. Owing to the persistence of distal necrosis, amputation of the hallux was performed with good evolution. CA is a subtype of Buerger's disease. It is poorly known but increasingly prevalent and manifests in cannabis users regardless of tobacco use. The drug is considered at least a cofactor of the arteriopathy. The most effective treatment is cessation of consumption. Being cannabis one of the most consumed drugs, its mandatory to ask about its use in all young patients with arteriopathy.
authors.affiliation: Department of Dermatology, Hospital de Braga, Braga, Portugal.
authors.forename: Rui Pedro
authors.initials: RP
authors.lastname: Santos
authors.affiliation: Department of Dermatology and Venereology, Hospital de Braga, Oliveira de Azeméis, Portugal.
authors.forename: Cristina Isabel Pinho
authors.initials: CI
authors.lastname: Resende
authors.affiliation: Hospital de Braga, Braga, Portugal.
authors.forename: Ana Paula
authors.initials: AP
authors.lastname: Vieira
authors.affiliation: Department of Dermatology and Venereology, Hospital de Braga, Braga, Portugal.
authors.forename: Celeste
authors.initials: C
authors.lastname: Brito
mesh_terms: D000328:Adult; D000671:Amputation, Surgical; D000792:Angiography / Q000379:methods; D001167:Arteritis / Q000139:chemically induced* / Q000175:diagnosis* / Q000628:therapy; D002188:Cannabis; D003937:Diagnosis, Differential; D003952:Diagnostic Imaging; D006214:Hallux / Q000473:pathology* / Q000601:surgery; D006801:Humans; D007866:Leg / Q000098:blood supply / Q000601:surgery; D008297:Male; D002189:Marijuana Abuse / Q000150:complications*; D009336:Necrosis; D012907:Smoking / Q000009:adverse effects