Resumen

REYES LLERENA, Gil Alberto et al. Wegener's granulomatosis mimicking a tumor of the lung vertex. Report of a clinical case and review of the literature. Rev Cuba Reumatol [online]. 2019, vol.21, n.3  Epub 01-Dic-2019. ISSN 1817-5996.

Granulomatosis with polyangiitis, formerly known as Wegener's Granulomatosis, is classified as systemic vasculitis, of unknown cause, affecting small and medium-sized vessels. It is characterized by the involvement of the respiratory system in its upper tract, lungs, as well as the kidneys, although it can affect other organs and systems. Neutrophil anticithoplasma antibodies are positive with a frequency that reaches over 80% of cases, and the most relevant histological feature is the presence of necrotizing granulomatous lesions. The diagnosis is based on clinical manifestations, biopsy with histological study of the affected tissues and organs as well as the presence of Neutrophil anticithoplasma antibodies. Nowadays it is grouped into the so-called Neutrophil anticithoplasma antibodies positive vasculitis. Arthromyalgia, respiratory manifestations such as thoracic and left intercostal pain, cough with mucous expectoration, and dyspnea on physical efforts in increase. The physical examination collected positive data such as mucous skin pallor, the presence of decreased vesicular murmur at the level of the left vertex of the lung with crackling rales and an image as a rounded tumor mass of the upper lobe of the lung that guided the diagnosis of a vertex neoplasm of lung. Multiple studies were carried out considering the proteiform clinical picture, the immunological studies performed, and the lung biopsy histology, which demonstrated the existence of granulomatous lesions compatible with G. Wegener. The therapeutic response was effective with steroidal and immunosuppressive drugs in the form of cyclophosphamide boluses accompanied by a strong broad-spectrum antibiotic treatment. We conclude that this is a rare case of Wegener's granulomatosis, whose debut form raised the initial diagnosis of a tumor of the lung vertex. We do not know of another similar case reported in our country.

Palabras clave : Wegener granulomatosis; systemic vasculitis; ANCA; Neutrophil anticithoplasma antibodies.

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