EN
Paracoccidioidomycosis is a systemic mycosis caused by inhalation of the fungus P. brasiliensis. The primary infection involves the lungs and can spread to other organs and systems resulting in secondary lesions in the mucosa, lymph nodes, skin and adrenal glands. Oral lesions are insidious in progression and can be multifocal. The aim of this study was to report a case of paracoccidioidomycosis in a patient who was misdiagnosed with pulmonary tuberculosis. A 40-year-old male, HIV-positive, was admitted with complaints of weight loss, asthenia, diarrhea, coughing and dyspnea. Physical examination revealed the presence of caries, coated tongue, residual roots, oral candidiasis and ulcerated, granulomatous lesions in the hard palate and alveolar ridge. Laboratory tests revealed anemia, neutrophilia and an increased erythrocyte sedimentation rate. Cytology and incisional biopsy were performed. The cytological examination revealed the presence of fungus and the pathological examination confirmed the diagnosis of paracoccidioidomycosis. The doctors who previously made the diagnosis of tuberculosis were informed of the new diagnosis, as the patient was being treated for tuberculosis. The treatment for paracoccidioidomycosis was initiated and the patient is under clinical monitoring.