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Cats
Carcinoma arising from an oesophageal duplication cyst in an adult cat
  1. Amalia Agut1,
  2. Juana Carrillo1,
  3. Marta Soler1,
  4. Miguel Angel Gómez2 and
  5. Maria Josefa Fernandez1
  1. 1Department of Medicine and Surgery, University of Murcia, Murcia, Spain
  2. 2Departament of Anatomy and Pathological Anatomy, University of Murcia, Murcia, Spain
  1. Correspondence to Professor Amalia Agut; amalia{at}um.es

Abstract

A 17-year-old female Siamese cat was referred for a history of progressive dyspnoea, depression and anorexia. The cat was tachypnoeic, dyspnoeic and the thoracic auscultation revealed muffled cardiac and respiratory sounds. Radiographs of the thorax demonstrated pleural effusion and a well-circumscribed soft tissue mass in the caudodorsal aspect of the mediastinum, most likely consistent with an oesophageal mass. CT findings demonstrated a cystic-like mass in the caudal mediastinum, which was located in the right wall of the oesophagus, pleural effusion and subpleural nodules. Microscopic examination revealed that the wall of the cystic-like mass had an inner mucosal layer lined by squamous epithelium and contained two muscle layers, consistent with an oesophageal duplication cyst (ODC). A carcinoma was found in the ODC as well as pleural carcinomatosis. To the authors’ knowledge, this is the first case of a neoplastic ODC.

  • malignant transformation
  • computed tomography
  • cat
  • radiography
  • oesophagus
  • duplication cyst
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Footnotes

  • Contributors Conception and design: AA, MS. Acquisition of data: AA, MS, JC, MAG, MJF. Analysis and interpretation of data: AA, MAG, MJF. Drafting the article: AA, MS, MJF. Revising article for intellectual content: AA. Final approval of the completed article: AA, MS, JC, MAG, MJF.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Data availability statement All data relevant to the study are included in the article.

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