Invasive Mucinous Adenocarcinoma Mimicking Organizing Pneumonia Associated with <i>Mycobacterium fortuitum</i> Infection
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- Morichika Daisuke
- Department of Allergy and Respiratory Medicine, Okayama University Hospital, Japan
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- Miyahara Nobuaki
- Department of Allergy and Respiratory Medicine, Okayama University Hospital, Japan
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- Hotta Katsuyuki
- Department of Allergy and Respiratory Medicine, Okayama University Hospital, Japan
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- Okamoto Yoshiko
- Department of Allergy and Respiratory Medicine, Okayama University Hospital, Japan
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- Minami Daisuke
- Department of Allergy and Respiratory Medicine, Okayama University Hospital, Japan
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- Irie Masahiro
- Department of Thoracic Surgery, Okayama University Hospital, Japan
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- Tanimoto Yasushi
- Department of Allergy and Respiratory Medicine, Okayama University Hospital, Japan
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- Kanehiro Arihiko
- Department of Allergy and Respiratory Medicine, Okayama University Hospital, Japan
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- Tanimoto Mitsune
- Department of Allergy and Respiratory Medicine, Okayama University Hospital, Japan
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- Kiura Katsuyuki
- Department of Allergy and Respiratory Medicine, Okayama University Hospital, Japan
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抄録
We herein report the case of a 68-year-old man diagnosed with invasive mucinous adenocarcinoma of the lungs. Chest computed tomography showed subpleural ground-glass opacity and small nodules with cavitation. A culture of the bronchoalveolar lavage fluid resulted in the detection of Mycobacterium fortuitum. The patient's lung consolidation rapidly progressed; however, repeated bronchoscopy showed no atypical cells, thus suggesting a diagnosis of organizing pneumonia associated with M. fortuitum infection. However, the surgical biopsy specimen was diagnostic for adenocarcinoma, with no mycobacterial infection. Invasive mucinous adenocarcinoma should not be excluded in the differential diagnosis of patients with clinical features of organizing pneumonia and nontuberculous mycobacterium infection, even if a transbronchial biopsy confirms the absence of malignancy.<br>
収録刊行物
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- Internal Medicine
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Internal Medicine 53 (24), 2795-2799, 2014
一般社団法人 日本内科学会