Optimal follow-up duration for nonspecific pleuritis: how long is long enough?

Our plain-English summary of Optimal follow-up duration for nonspecific pleuritis: how long is long enough?, by S. Ozyavuz, G. Ak, S. Metintas, et al (ERJ Open Research, 2026).

The study

• Authors: S. Ozyavuz, G. Ak, S. Metintas, M. Metintas
• Journal: ERJ Open Research
• Published: 2026;12(2)
• Type of article: Letter
• Read it: PubMed · Publisher · Free full text

Abstract

NSP is often benign but some cases may later reveal malignancy, especially mesothelioma. Most are diagnosed within 12 months, yet delayed cases exist. Structured follow-up beyond 12 months is advised for high-risk patients. https://bit.ly/47ECu4Y.

Copyright ©The authors 2026.

In plain English

This article is a letter to the editor. It responds to an earlier multi-centre study by Sundaralingam and colleagues on non-specific pleuritis (NSP), a pleural biopsy result that does not point to a specific cause. The letter summarized published reports, including that study, of NSP patients later found to have cancer, often diffuse pleural mesothelioma. Those figures come from other studies, not from this letter. The authors' own contribution was a single case. The patient was a 74-year-old retired primary school teacher seen at their clinic in Turkey. He had environmental asbestos exposure in a village from birth to age 12 and a 52 pack-year smoking history. At his first visit, for chest pain, a CT scan showed minimal smooth pleural thickening and calcified pleural plaques. The letter does not describe a biopsy at that visit. He was advised to return but did not. About 22 months later he had a massive left-sided pleural effusion. Two fluid samples were negative for malignancy, but biopsy confirmed epithelioid diffuse pleural mesothelioma, stage II. The authors concluded that follow-up of at least 24 months may be warranted when suspicion of mesothelioma persists.

We wrote this plain-English summary from the full article with the help of AI, and a second AI model checked each sentence against the article. It is not the authors' wording; the abstract and the article are their own account.

What the study did and found

• Design: Letter to the editor (correspondence) presenting a single case report, with a brief summary of other published studies on non-specific pleuritis
• Who was studied: One 74-year-old male patient, a retired primary school teacher, seen at the authors' clinic (Eskisehir Osmangazi University, Turkey); he had a 52 pack-year smoking history, type 2 diabetes and benign prostatic hyperplasia
• Exposure: Environmental asbestos exposure during childhood (ages 0 to 12) in a rural village; fiber type not stated
• Main results:
  • At the first visit, CT of this patient showed minimal smooth pleural thickening on the left side without invasion, with scattered calcified pleural plaques
  • The patient was advised to come back for follow-up but did not return
  • About 22 months later, CT showed a massive left-sided pleural effusion and minimal pleural thickening of the mediastinal pleura and fissure
  • Pleural fluid cytology showed many atypical mesothelial cells, but two separate samples were negative for malignancy
  • Medical thoracoscopy biopsy confirmed epithelioid diffuse pleural mesothelioma, staged T2N0M0 (stage II); he started neoadjuvant cisplatin-pemetrexed chemotherapy
• The authors' conclusion: The authors suggested that follow-up of at least 24 months may be warranted when clinical or radiological suspicion of diffuse pleural mesothelioma persists, even without initial diagnostic confirmation, and that patient education is crucial

Topics

Medical terms in this study, explained in our Lexicon: Mesothelioma.

Related studies

• Reply: Optimal follow-up duration for nonspecific pleuritis: how long is long enough? — A. Sundaralingam, R. Bhatnagar (2026)
• Nonspecific pleuritis: optimal duration of follow-up — Z.S. DePew, A. Verma, et al. (2014)
• Long-term follow-up results of patients diagnosed with nonspecific pleuritis by video-assisted thoracoscopic surgery biopsy — M. Agca, R. Yildiz, et al. (2026)
• Outcome of patients with nonspecific pleuritis/fibrosis on thoracoscopic pleural biopsies — H.E. Davies, J.E. Nicholson, et al. (2010)
• Outcome of patients with nonspecific pleuritis at thoracoscopy — J.M. Wrightson, H.E. Davies (2011)
• Investigation and outcomes in patients with nonspecific pleuritis: results from the International Collaborative Effusion database — A. Sundaralingam, A. Aujayeb, et al. (2023)

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