• Hanifi Yildiz, Aysel Sünnetçioğlu, Selami Ekin, Ali İrfan Baran, Mesut Özgökçe, Selvi Aşker, İbrahim Üney, Engin Turgut, and Sümeyye Akyüz.
• Van Yuzuncu Yil University, Faculty of Medicine, Department of Chest Medicine, Tuşba/Van, Turkey.
• Colomb Medica. 2019 Sep 30; 50 (3): 215-221.

Case DescriptionA 52-year-old female patient was admitted to our clinic with complaints of cough, sputum, fever and fatigue. The patient has been receiving immunosuppressive therapy for thrombocytopenic purpura for 5 years.Clinical FindingInspiratory crackles were heard on both hemithorax. Oxygen saturation measured with the pulse oximeter was 97%. Chest X-ray showed diffuse reticular opacities that were more prominent in the upper zones of both lungs. WBC counts were 17,600 mm3 and Platelet counts were 29,000 mm3. Thorax CT showed that there were many thin-walled cavities and millimetric nodules accompanied by ground-glass infiltrates in the upper and middle lobes. Gram staining of bronchial fluid, taken by bronchoscopy, revealed Gram-negative bacilli and intense polymorphonuclear leukocytes. The bacteria were defined as Delftia acidovorans by BD Phoenix automated system.Treatment And OutcomesThe patient was hospitalized with suspicion of opportunistic pulmonary infections and cavitary lung disease. After the empirical treatment of intravenous piperacillin-tazobactam and oral clarithromycin, her clinical and radiological findings significantly regressed, and she was discharged with outpatient follow-up.Clinical RelevanceThis is the first example of cavitary pneumonia due to Delftia acidovorans in an immunocompromised patient. We would like to emphasize that Delftia pneumonia should be considered in the differential diagnosis of pulmonary cavitary involvement in such patients.Copyright © 2019 Universidad del Valle.

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