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Pulmonary mucinous cystadenoma complicated with infection: A rare case report

Zhou-Ye Luo1, Xun-Ze Shen1, Fang Liu2

  • 1PET/CT Center, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, Zhejiang Province, China.

Medicine
|August 16, 2021
PubMed
Abstract

Insights

Pulmonary mucinous cystadenoma (PMCA) is rare, especially when complicated by infection. This case highlights diagnostic challenges, with imaging initially suggesting malignancy despite the benign tumor.

Area of Science:

  • Pulmonary Medicine
  • Oncology
  • Radiology

Background:

  • Pulmonary mucinous cystadenoma (PMCA) is an exceptionally rare lung tumor, with few documented cases globally.
  • This report details a unique case of PMCA complicated by significant infection, a presentation not previously described.

Observation:

  • A 57-year-old male presented with hemoptysis, elevated leukocytes, and carcinoembryonic antigen.
  • Imaging revealed a cystic-solid mass in the right upper lung, raising suspicion for malignancy.
  • The patient underwent surgical resection of the right upper lobe tumor.

Findings:

  • Postoperative pathology confirmed PMCA with superimposed infection.
  • The patient received no further treatment and showed no recurrence after a 2-year follow-up.

Implications:

  • Preoperative diagnosis of PMCA is challenging due to atypical imaging and clinical features.
  • This case underscores the difficulty in differentiating infected PMCA from lung malignancy based on initial assessments.

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