A case of pulmonary Mycobacterium avium infection in an immunocompetent patient who showed a huge consolidation with a high FDG uptake on PET/CT

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• 作者：Akane Kato^a ; ^{akanekat@shinshu-u.ac.jp" class="auth_mail" title="E-mail the corresponding author} ; Hiroshi Yamamoto^a ; ^{yama5252@shinshu-u.ac.jp" class="auth_mail" title="E-mail the corresponding author} ; Mariko Ikeda^a ; ^{mikeda@shinshu-u.ac.jp" class="auth_mail" title="E-mail the corresponding author} ; Kazunari Tateishi^a ; ^{tateishi@shinshu-u.ac.jp" class="auth_mail" title="E-mail the corresponding author} ; Atsuhito Ushiki^a ; ^{atsuhito@shinshu-u.ac.jp" class="auth_mail" title="E-mail the corresponding author} ; Masanori Yasuo^a ; ^{yasumasa@shinshu-u.ac.jp" class="auth_mail" title="E-mail the corresponding author} ; Satoshi Kawakami^b ; ^{kawasato@shinshu-u.ac.jp" class="auth_mail" title="E-mail the corresponding author} ; Shiho Asaka^c ; ^{ydash831@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; Kazuhiro Oguchi^d ; ^{pet-dr@ai-hosp.or.jp" class="auth_mail" title="E-mail the corresponding author} ; Masayuki Hanaoka^a ; ^{masayuki@shinshu-u.ac.jp" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Mycobacterium avium ; Angiogram sign ; Positron emission tomography (PET)/computed tomography (CT) ; Maximum standardized uptake value (SUVmax)
• 刊名：Respiratory Medicine Case Reports
• 出版年：2016
• 出版时间：2016
• 年：2016
• 卷：19
• 期：Complete
• 页码：49-52
• 全文大小：750 K

文摘

We encountered a middle-aged afebrile immunocompetent woman with a slight cough. Positron emission tomography (PET)/computed tomography (CT) revealed a broad left upper-lobe consolidation without cavity lesions, small nodules, or bronchiectasis showing a positive fluorodeoxyglucose (FDG) uptake with a maximum standardized uptake value (SUVmax) of 26.9. Percutaneous needle lung biopsy specimens showed caseous granulomas without atypical cells and Mycobacterium avium was cultured from left pleural effusion, which developed after the biopsy. The consolidation significantly decreased following combination chemotherapy for approximately 2 years. Clinicians should remember that pulmonary M. avium infection could result in a large consolidation without other typical radiological findings.