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A Rare Case of Canine Pericardial Malignant Mesothelioma: Clinicopathologic Findings, Diagnostic Investigations, and Clinical Course with Epirubicin Treatment

  • Jun-Hyuk Min (College of Veterinary Medicine, Jeju National University) ;
  • Jiwoong Yoon (College of Veterinary Medicine, Jeju National University) ;
  • Sooyoung Son (Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Jeju National University) ;
  • Woo-Jin Song (Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Jeju National University) ;
  • Siheon Lee (24hr WISE Animal Medical Center) ;
  • Youngmin Yun (Research Institute of Veterinary Medicine, College of Veterinary Medicine, Jeju National University) ;
  • Hyunjung Park (College of Veterinary Medicine, Jeju National University) ;
  • Jongtae Cheong (College of Veterinary Medicine, Jeju National University) ;
  • Alba Maria M. Shank (IDEXX) ;
  • Myung-Chul Kim (Research Institute of Veterinary Medicine, College of Veterinary Medicine, Jeju National University)
  • 투고 : 2024.05.29
  • 심사 : 2024.06.12
  • 발행 : 2024.06.30

초록

An adult male dog was presented for hemorrhagic pericardial effusion. Echocardiography and computed tomography revealed nodule-like lesions on the pericardium. Cytology of pericardial effusion and excisional pericardial lesions indicated neoplastic effusion. Histopathology indicated an inflamed neoplasm with a primary differential diagnosis of hemangiosarcoma and malignant mesothelioma (MM). Immunohistochemistry showed that atypical cells were positive for cytokeratin and vimentin, but negative for CD31, strongly favoring pericardial MM. Postoperative NT-proBNP level remained increased, which led to the administration of epirubicin to minimize potential cardiotoxicity. During the 4 cycles of epirubicin treatment, a total cumulative dose of 108 mg/m2 was administrated and no effusion recurrence was observed. After a month post-completion of chemotherapy, however, pleural effusion was detected with cardiac masses. The owner requested no further diagnostic investigations and chemotherapy. Due to deteriorating conditions, the dog died 132 days after the first presentation. Our case is the first notable attempt to treat canine malignant mesothelioma with epirubicin, providing the clinicopathologic, diagnostic routine, and clinical course of the affected dog.

키워드

과제정보

We express our appreciation to all the pathologists from IDEXX Laboratories involved with the pathology and immunohistochemistry reports used in this study. This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (MOE) (#RS-2023-00241779). This research was also supported by Regional Innovation Strategy (RIS) through the NRF funded by MOE (#2023RIS-009).

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