Mycobacterial subcutaneous arteritis Arterite subcutânea por micobactéria

• Published in: Revista do Instituto de Medicina Tropical de São Paulo
• Main Authors: Consuelo Junqueira Rodrigues, Fernando Peixoto Ferraz de Campos, Lais Lage Furtado-Mendonça, Rosa Maria Rodrigues Pereira, Berilo Langer, Jayme Diament, Ricardo Manoel de Oliveira, Wilson Cossermelli
• Format: Article in Journal/Newspaper
• Language: English
• Published: Universidade de São Paulo (USP) 1990
• Subjects: Erythema induratum Bazin; Erythema nodosum; Vasculitis; Arctic medicine. Tropical medicine; RC955-962; Infectious and parasitic diseases; RC109-216; Arctic
• Online Access: https://doi.org/10.1590/S0036-46651990000500006; https://doaj.org/article/cb85f8489d4f4a4dbd95de3229c25ca8

The authors report three patients with subcutaneous erythematous nodules in different phases of development, inespecific systemic symptoms, positive PPD test, and normal chest X-rays. The histopathological study of the older nodules showed a granulomatous arteritis with a few acid-fast bacilli in the vascular wall. The nodules at an early phase showed an inespecific panniculitis with some acid-fast bacilli in apparently normal cutaneous vessels. These findings suggest that the mycobacterium has a vascular tropism and may cause a primary granulomatous arteritis. Os autores descrevem três casos de pacientes com nódulos subcutâneos em diferentes fases de evolução, com sintomas sistêmicos inespe-cíficos, PPD positivo e raio-X de tórax normal. O estudo anátomo-patológico dos nódulos antigos mostrou arterite granulomatosa e com raros bacilos álcool-ácido resistentes na parede vascular; os nódulos recentes mostraram paniculite inespecífica com alguns bacilos álcool-ácido resistentes na parede de vasos cutâneos aparentemente normais. Esses achados sugerem que a micobactéria tem um tropismo vascular e pode causar arterite granulomatosa.