title: Pyoderma-gangraenosum-like ulcers associated with lupus anticoagulant.
abstract: A 45-year-old women presented with a deep ulcerative lesion of the left breast. Two months later, a new cutaneous necrotic lesion located in the right pretibial areas was observed. The only serum abnormality was the presence of circulating lupus anticoagulant. Clinical features suggested the diagnosis of pyoderma gangraenosum and histologic examination showed microthrombosis in the dermal capillary vessels adjacent to a dense, mixed inflammatory infiltrate with some degree of vascular damage. Although thrombosis may be the result of vasculitis, it is likely that in our patient the presence of a lupus anticoagulant activity played a role in the pathogenesis of the cutaneous ulcers.
authors.affiliation: Department of Internal Medicine, Valle de Hebron Hospital, Barcelona, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Selva
authors.forename: J
authors.initials: J
authors.lastname: Ordi
authors.forename: M
authors.initials: M
authors.lastname: Roca
authors.forename: P
authors.initials: P
authors.lastname: Huguet
authors.forename: A
authors.initials: A
authors.lastname: Castells-Rodellas
authors.forename: M
authors.initials: M
authors.lastname: Vilardell
mesh_terms: D001940:Breast; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007871:Leg Ulcer / Q000097:blood* / Q000175:diagnosis / Q000209:etiology; D016682:Lupus Coagulation Inhibitor / Q000097:blood*; D008875:Middle Aged; D009336:Necrosis; D017511:Pyoderma Gangrenosum / Q000097:blood* / Q000175:diagnosis / Q000209:etiology; D017445:Skin Diseases, Vascular / Q000097:blood* / Q000175:diagnosis / Q000209:etiology
chemical_list: D016682:Lupus Coagulation Inhibitor