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Multiple nodular and patchy infiltrations in a 34-year-old male

Annals of Thoracic Medicine
Medknow Publications
Publication Date
DOI: 10.4103/1817-1737.32237
  • Letter To Editor
  • Biology
  • Chemistry
  • Medicine


Dear Sir, All-trans retinoic acid (ATRA), a derivative of vitamin A, is widely used in the treatment of acute promyelocytic leukemia.[1] ATRA syndrome is a treatment complication, including fever, dyspnea, pulmonary infiltrates, pleural/pericardial effusions, episodic hypotension, weight gain and occasionally acute renal failure.[23] We are presenting here a case with acute myeloid leukemia who had multiple pulmonary infiltrations and was finally diagnosed as ATRA syndrome after exclusion of other pathologies. A 34-year-old male presented with fever, cough and dyspnea. He had been diagnosed as acute myeloid leukemia (AML-M3) 2 months ago and was treated by two cycles cytosine-arabinoside (Ara-C) and daunorubicin in addition to ATRA in the second cyclus. His physical examination revealed hypotension of 80/50 mmHg and fever was measured as 39°C. Other system examinations were normal. A blood sample revealed leucocytosis with leukocyte count of 17,000/ul and anemia with hemoglobin value of 8.5 g/dl. Total platelet count was normal. Blood and urine biochemical tests were normal. Arterial blood gas analysis showed an oxygen saturation of 86% while breathing room air. Cultures of blood and urine were negative for any pathogens. A chest radiograph was performed, followed by a computed tomography (CT) scan of the chest [Figure 1]. Figure 1 Thorax CT demonstrating multiple patchy and nodular infiltrations The patient underwent bronchoscopy and bronchoalveolar lavage (BAL). Any significant growth of bacteria, fungus, mycobacteria was not determined in BAL cultures. No atypical cell was detected in pathological examination. ATRA syndrome was the diagnosis, and dexamethasone was started with 20 mg daily. CT [Figure 2] of the chest on the 10th day of the treatment revealed significant regression in the lesions. Figure 2 Thorax CT showing regression in the infiltrations ATRA syndrome is a treatment complic

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