期刊
JOURNAL OF INVESTIGATIVE MEDICINE HIGH IMPACT CASE REPORTS
卷 10, 期 -, 页码 -出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/23247096221084840
关键词
pediatrics; cryptogenic organizing pneumonia; rhabdomyosarcoma; tuberculosis
This case report presents a rare case of organizing pneumonia in an 18-year-old male who had a history of rhabdomyosarcoma and developed the condition 8 years after treatment. The diagnosis posed a challenge, but it highlights the importance of considering organizing pneumonia in patients with pulmonary lesions and a history of hematopoietic stem cell transplants, lung irradiation, or immunosuppression.
Organizing pneumonia is a pulmonary disease of undefined etiology, with few reported cases in children. It may be secondary to chemotherapy, radiation therapy, infectious agents, or hematopoietic cell transplantation. We present a case of an I 8-year-old boy who presented to a follow-up consult with respiratory symptoms at the age of 11 years, 8 years after finishing treatment for a prostatic relapse of a pelvic rhabdomyosarcoma. Chest radiography revealed nodular opacities in the left lung, the one in the left lower lobe with silhouette sign with the left hemidiaphragm. Chest computerized tomography showed 2 nodular lesions in the left upper lobe, one of them cavitated, and another nodular lesion in the left lower lobe; 2 of these nodules had surrounding ground-glass opacities. Microbiological work-up, including tuberculosis screening, was negative. Biopsy revealed findings suggestive of organizing pneumonia. He presented spontaneous resolution. This case presented a diagnostic challenge due to rarity of this condition and its indetermined association with the patient's history of rhabdomyosarcoma. With this case, the authors alert that organizing pneumonia must be considered in patients presenting with pulmonary lesions with a history of previous hematopoietic stem cell transplants, lung irradiation, or immunosuppression. Pulmonary metastases and secondary tumors must be considered as a differential diagnosis in patients with a heavily treated relapsed rhabdomyosarcoma.
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