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J Shahrekord Univ Med Sci. 2025;27(2): 86-89.
doi: 10.34172/jsums.998
  Abstract View: 12
  PDF Download: 2

Case Report

Pulmonary alveolar proteinosis or coronavirus disease 19 pneumonia: A clinical case study

Huriyeh Hashemi 1 ORCID logo, Amir Mohamad Mozafari 2,3 ORCID logo, Nahid Etemadi Toudeshki 4 ORCID logo, Mihan Pourabdollah Toutkaboni 5 ORCID logo, Zohre Naderi 1* ORCID logo

1 Department of Internal Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
2 Clinical Research Development Unit, Ayatollah Kashani Hospital, Shahrekord University of Medical Sciences, Shahrekord, Iran
3 Medical Library and Information Sciences Department, Health Information Technology Research Center, Clinical Informationist Research Group, Isfahan University of Medical Sciences, Isfahan, Iran
4 Department of Internal Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
5 Chronic Respiratory Diseases Research Center, National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
*Corresponding Author: Zohre Naderi, Email: z_naderi@med.mui.ac.ir

Abstract

The COVID-19 pandemic has resulted in a significant number of hospitalizations worldwide, complicating the diagnosis of rare respiratory diseases, such as pulmonary alveolar proteinosis (PAP), which can present with clinical symptoms and radiological findings similar to those of COVID-19. Consequently, accurate diagnosis is crucial. This report describes a case involving a young man with a history of progressive shortness of breath who was initially treated for COVID-19 pneumonia based on high-resolution computed tomography (HRCT) findings. However, following three negative polymerase chain reaction tests from the patient’s throat swab and a lack of clinical improvement despite COVID-19 treatment, he underwent bronchoscopy and bronchoalveolar lavage. The results of these procedures demonstrated PAP. Given that COVID-19 presents with a wide range of manifestations and that HRCT of the lungs is currently the most sensitive diagnostic test for the disease, it is essential to consider the patient’s medical history when diagnosing various pulmonary conditions. More precisely, a thorough assessment of the patient’s history can significantly influence the diagnostic outcome.
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Submitted: 28 Jun 2024
Accepted: 09 Nov 2024
ePublished: 29 Jun 2025
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