{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,6]],"date-time":"2025-12-06T08:38:33Z","timestamp":1765010313682,"version":"3.46.0"},"reference-count":23,"publisher":"BMJ","issue":"11","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Clin Pathol"],"published-print":{"date-parts":[[2006,11]]},"abstract":"<jats:p>\n                    <jats:bold>Background:<\/jats:bold>\n                    Reports of endodermal heterotopia (previously known as inclusion cysts) in cardiac atria are rare and there is only a single previous case report of endodermal heterotopia in a cardiac papillary muscle.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>Aim and methods:<\/jats:bold>\n                    A cyst in a cardiac papillary muscle was identified during the autopsy of an 87-year-old man who had died from an unrelated myocardial infarction. The cyst was examined histologically and mucin staining and immunostaining were carried out.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>Results:<\/jats:bold>\n                    We report a unilocular cyst in a cardiac papillary muscle, which is lined by low cuboidal, pseudostratified and occasionally ciliated respiratory-type epithelium, surrounded by a layer of smooth muscle. The immunohistochemical features (MNF116+, cytokeratin (CK)7+, CK8+, CK18+, CK19+, epithelial membrane antigen positive, scattered cells positive for neuroendocrine markers) suggest that this is an endodermal heterotopia. Immunostaining of positive thyroid transcription factor-1 provides evidence for bronchogenic differentiation.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>Discussion:<\/jats:bold>\n                    The differential diagnoses of cystic structures in cardiac papillary muscle and the origin and importance of endodermal heterotopias are discussed.\n                  <\/jats:p>","DOI":"10.1136\/jcp.2005.030312","type":"journal-article","created":{"date-parts":[[2006,10,27]],"date-time":"2006-10-27T13:27:10Z","timestamp":1161955630000},"page":"1203-1205","source":"Crossref","is-referenced-by-count":10,"title":["Epithelial cyst of the cardiac papillary muscle: case report and review of the literature: \n            Figure 1"],"prefix":"10.1136","volume":"59","author":[{"given":"E J","family":"Soilleux","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"D R","family":"Davies","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2006,10,27]]},"reference":[{"key":"2025120600335079000_59.11.1203.1","doi-asserted-by":"publisher","DOI":"10.1016\/S1054-8807(03)00032-2"},{"key":"2025120600335079000_59.11.1203.2","first-page":"52","volume":"98","year":"1968","journal-title":"Can Med Assoc J"},{"key":"2025120600335079000_59.11.1203.3","first-page":"175","volume":"14","year":"1993","journal-title":"Pathologe"},{"key":"2025120600335079000_59.11.1203.4","doi-asserted-by":"publisher","DOI":"10.1136\/hrt.67.6.502"},{"key":"2025120600335079000_59.11.1203.5","doi-asserted-by":"publisher","DOI":"10.1378\/chest.103.3.965"},{"key":"2025120600335079000_59.11.1203.6","doi-asserted-by":"publisher","DOI":"10.1136\/hrt.63.2.132"},{"key":"2025120600335079000_59.11.1203.7","doi-asserted-by":"publisher","DOI":"10.1016\/S0002-9149(83)80109-X"},{"key":"2025120600335079000_59.11.1203.8","doi-asserted-by":"crossref","first-page":"917","DOI":"10.1111\/j.1440-1827.1998.tb03862.x","volume":"48","year":"1998","journal-title":"Pathol Int"},{"key":"2025120600335079000_59.11.1203.9","doi-asserted-by":"publisher","DOI":"10.1136\/hrt.40.3.325"},{"key":"2025120600335079000_59.11.1203.10","unstructured":"Willis RA. 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