A rare presentation of blastomycosis as a multi-focal infection involving the spine, pleura, lungs, and psoas muscles in a Saudi male patient: a case report

Abstract

Abstract Background Blastomycosis is a disease caused by the fungus Blastomyces—a thermally dimorphic fungus that can cause granulomatous and/or purulent infection. Case presentation We report here a case of chronic blastomycosis infection in a 24-year-old male patient from Saudi Arabia who presented with recurrent skin abscesses associated with deep-seated and multilevel paraspinal (dorsal and lumbar) collections and bilateral empyema with pulmonary involvement and bilateral psoas abscesses. The diagnosis was made after a CT-guided pleural biopsy revealed the characteristic histopathological findings of blastomycosis. The patient underwent several drainage procedures and was successfully treated with a long-term course of oral itraconazole. Conclusions Chronic blastomycosis may have clinical and radiologic features similar to thoracic tuberculosis or malignant disease. There is no definite clinical symptom of blastomycosis, and thus a high degree of suspicion is required for early diagnosis. This case is a rare form of blastomycosis with chronic multifocal purulent infection and is the second case of blastomycosis reported in Saudi Arabia.

Keywords

• Blastomycosis
• Pleural effusion
• Pulmonary nodules
• Psoas muscles