Introduction: Tuberculosis (TB) is a chronic granulomatose infection, and granulomatosis with polyangiitis (GP) is a small vessel vasculitis, both of which affect the lungs. The combination of these diseases is rare. Both have similar clinical features, making the differential diagnosis difficult.
Case report: It concerns a 37 year-old female undergoing treatment for pulmonary TB, who presented with left ocular proptosis, eyelid and conjunctival edema and erythema. Orbital biopsy revealed GP. C-Anti-neutrophil cytoplasmic antibodies were elevated. The patient responded well to immunosuppressive treatment.
Conclusion: TB and GP can associate. Diagnosis should include not only C-anti-neutrophil cytoplasmic antibodies, but also a biopsy, in order to select the appropriate treatment.
Keywords: Anti-neutrophil cytoplasmic antibodies; Anticuerpos anticitoplasma de neutrófilos; Granulomatosis con poliangeítis; Granulomatosis with polyangiitis; Proptosis; Tuberculosis.
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