Debunking a mythology: Atelectasis is not a cause of postoperative fever

Clin Imaging. 2025 Jan:117:110358. doi: 10.1016/j.clinimag.2024.110358. Epub 2024 Nov 17.

Abstract

Most physicians appreciate that practicing medicine is a commitment to continuous learning. However, "learning" can be mistakenly understood as simply the acquisition of facts and new knowledge. But learning also necessitates the constant re-examination and challenging of one's existing body of knowledge, as misinformation persists when one's beliefs are not challenged or questioned in the light of new information. One example is the pervasive belief that postoperative atelectasis causes fever despite ample evidence to the contrary. Herein we examine the imaging characteristics of atelectasis, and the means of differentiation of atelectasis from consolidation. We also explore the history of this persistent myth and review the existing literature on the actual causes of postoperative fever.

Keywords: Atelectasis; Chest; Imaging; Pneumonia; Postoperative fever; Radiology.

Publication types

  • Review

MeSH terms

  • Diagnosis, Differential
  • Fever / etiology
  • Humans
  • Mythology
  • Postoperative Complications* / diagnostic imaging
  • Pulmonary Atelectasis* / diagnostic imaging
  • Pulmonary Atelectasis* / etiology
  • Tomography, X-Ray Computed