Radiology Case Reports (May 2021)

Usual interstitial pneumonia progressing to nonspecific interstitial pneumonia-like pattern on high-resolution CT with histologic confirmation

  • Kai Yazaki, MD,
  • Mizu Nonaka, MD,
  • Rie Shigemasa, MD,
  • Yuko Minami, MD, PhD,
  • Takefumi Saito, MD, PhD,
  • Nobuyuki Hizawa, MD, PhD

Journal volume & issue
Vol. 16, no. 5
pp. 1019 – 1022

Abstract

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Idiopathic pulmonary fibrosis (IPF) is a progressive and fatal disease. Although high-resolution computed tomography (HRCT) is important for the diagnosis of IPF, the changes in the HRCT findings in IPF are not fully understood. The patient was a 66-year-old man. His HRCT findings had atypically developed from a probable usual interstitial pneumonia pattern to a nonspecific interstitial pneumonia (NSIP) like pattern over 6 years. On the basis of the histologic examination and multidisciplinary discussion, IPF was diagnosed, and nintedanib, administered. This case can be useful for the differential diagnosis of IPF and NSIP.

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