Respiratory Medicine Case Reports (Jan 2021)

Idiopathic desquamative interstitial pneumonia diagnosed using transbronchial lung cryobiopsy: A case report

  • Hiroshi Ishimoto,
  • Noriho Sakamoto,
  • Mutsumi Ozasa,
  • Shin Tsutsui,
  • Atsuko Hara,
  • Takashi Kido,
  • Hiroyuki Yamaguchi,
  • Kazuko Yamamoto,
  • Yasushi Obase,
  • Yuji Ishimatsu,
  • Hiroshi Mukae

Journal volume & issue
Vol. 34
p. 101523

Abstract

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A 60-year-old Japanese man with a history of heavy smoking came to our hospital for a detailed examination, suspecting interstitial pneumonia because of gradually increasing dyspnea on exertion over a period of one year. Chest high-resolution computed tomography revealed ground-glass shadows with emphysematous changes. Pathological analysis of samples obtained using transbronchial lung cryobiopsy revealed an accumulation of alveolar macrophages with abundant eosinophilic cytoplasm in the alveolar space. Following a multidisciplinary discussion, the patient was diagnosed with desquamative interstitial pneumonia. To our knowledge, this is the first detailed report of desquamative interstitial pneumonia diagnosed using transbronchial lung cryobiopsy.

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