Clinical-pathological findings of catamenial pneumothorax: comparison between recurrent cases and non-recurrent cases

other OA: gold CC-BY-4.0
AI-generated summary by claude@2026-06, 2026-06-08

This study compared clinical and pathological findings in patients with thoracic endometriosis, finding that endometrial glands in the diaphragm were significantly more common in recurrent catamenial pneumothorax cases.

One-sentence paraphrase of the abstract; not a substitute for reading it. No clinical advice. How this works

AI-generated deep summary by claude@2026-06, 2026-06-08 · read from full text

This study examined clinical and pathological records from 92 women pathologically diagnosed with thoracic endometriosis to characterize catamenial pneumothorax (CP), comparing patients who experienced recurrence versus those who did not. The recurrence rate was high, with 36/92 (39.1%) recurrent cases and 37/92 (40.2%) non-recurrent cases; 19 (20.4%) could not be evaluated. Pathologically, the ratio of endometrial glands in the diaphragm was significantly higher in recurrent cases (66.7% vs. 37.8%, P = 0.01). The paper notes that further research is needed to determine optimal management strategies, especially for CP cases with diaphragmatic endometrial gland involvement. This paper is centrally about endometriosis — specifically thoracic endometriosis presenting as catamenial pneumothorax (a form of ectopic endometriosis).

Read from the paper's body, not the abstract. Not a substitute for reading the paper. No clinical advice. How this works

Abstract

PURPOSE: Catamenial pneumothorax (CP) is classified as thoracic endometriosis syndrome. There are few reports of CP, and the clinical manifestations of this disease are unclear. The aim of the present study is to clarify the features of CP. METHODS: The clinical and pathological files of the 92 female patients pathologically diagnosed with thoracic endometriosis are included in this study. The clinical data and pathological findings of the recurrent and non-recurrent groups are compared. RESULTS: Thirty-six patients (39.1%) experienced recurrence, 37 (40.2%) patients did not, and 19 (20.4) patients could not be evaluated. The ratio of the endometrial gland in the diaphragm is significantly higher in the recurrent cases in comparison to non-recurrent cases (66.7% vs. 37.8%, P = 0.01). CONCLUSIONS: The recurrence rate of CP is high. Further study of the optimal management strategies is needed, especially for CP cases with the endometrial gland in the diaphragm.
Full text 2,297 characters · extracted from oa-doi-fallback · 8 sections · click to expand

Keywords

catamenial pneumothorax, spontaneous pneumothorax, thoracic endometriosis, ectopic endometriosis 2014 Volume 20 Issue 3 Pages 202-206 Details

Abstract

Purpose: Catamenial pneumothorax (CP) is classified as thoracic endometriosis syndrome. There are few reports of CP, and the clinical manifestations of this disease are unclear. The aim of the present study is to clarify the features of CP.

Methods

The clinical and pathological files of the 92 female patients pathologically diagnosed with thoracic endometriosis are included in this study. The clinical data and pathological findings of the recurrent and non-recurrent groups are compared.

Results

Thirty-six patients (39.1%) experienced recurrence, 37 (40.2%) patients did not, and 19 (20.4) patients could not be evaluated. The ratio of the endometrial gland in the diaphragm is significantly higher in the recurrent cases in comparison to non-recurrent cases (66.7% vs. 37.8%, P = 0.01).

Conclusions

The recurrence rate of CP is high. Further study of the optimal management strategies is needed, especially for CP cases with the endometrial gland in the diaphragm.

Methods

The clinical and pathological files of the 92 female patients pathologically diagnosed with thoracic endometriosis are included in this study. The clinical data and pathological findings of the recurrent and non-recurrent groups are compared.

Results

Thirty-six patients (39.1%) experienced recurrence, 37 (40.2%) patients did not, and 19 (20.4) patients could not be evaluated. The ratio of the endometrial gland in the diaphragm is significantly higher in the recurrent cases in comparison to non-recurrent cases (66.7% vs. 37.8%, P = 0.01).

Conclusions

The recurrence rate of CP is high. Further study of the optimal management strategies is needed, especially for CP cases with the endometrial gland in the diaphragm. © 2014 The Editorial Committee of Annals of Thoracic and Cardiovascular Surgery This article is licensed under a Creative Commons [Attribution-NonCommercial-NoDerivatives 4.0 International] license. https://creativecommons.org/licenses/by-nc-nd/4.0/ Favorites & Alerts Recently viewed articles

Text is read by the "Ask this paper" AI Q&A widget below. Extraction quality varies by source — PMC NXML preserves structure cleanly, OA-HTML may include some navigation residue, and OA-PDF can have broken hyphenation. The publisher copy (via DOI) is the canonical version.

My notes (saved in your browser only)

Ask this paper AI returns verbatim quotes from the full text · source: oa-doi-fallback

Answers must be backed by verbatim quotes from this paper's full text. Hallucinated quotes are dropped automatically; if no verbatim passage answers the question, we say so. How this works

Condition tags

endometriosisthoracic_endometriosis

MeSH descriptors

Choristoma Diaphragm Endometriosis Endometrium Lung Pleura Pneumothorax Adult Choristoma Choristoma Diaphragm Diaphragm Endometriosis Endometriosis Female Humans Lung Lung Middle Aged Pleura

Citation neighborhood (no data yet)

We don't have any in-corpus citations linked to this paper yet. The paper's references may be in our DB but unresolved to ``paper_id`` (resolution happens at ingest when the cited DOI matches a row we already have). Run the cross-source citation reconcile pass to retry.

Source provenance

europepmc
last seen: 2026-06-12T06:13:51.797165+00:00
pubmed
last seen: 2026-05-13T22:18:59.468224+00:00
unpaywall
last seen: 2026-05-14T19:30:52.867331+00:00
License: CC-BY-4.0 · commercial use OK · attribution required
Courtesy of the U.S. National Library of Medicine