Fatal upper aerodigestive tract obstruction in an East Asian finless porpoise (Neophocaena asiaeorientalis sunameri): findings in post-mortem computed tomography.

Autor: Yuen AHL; College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, South Korea.; Radiotherapy and Oncology Centre, Gleneagles Hospital Hong Kong, Wong Chuk Hang, Hong Kong SAR, China., Lee SB; College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, South Korea., Kim SW; Department of Microbiology and Immunology, Institute of Endemic Disease, College of Medicine, Seoul National University, Seoul, Republic of Korea.; College of Veterinary Medicine & Institute of Veterinary Science, Kangwon National University, Chuncheon, Gangwon, Republic of Korea., Lee YM; College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, South Korea., Kim DG; Department of Marine Biology & Aquaculture/Department of Aquaculture Science/Institute of Marine Industry/Marine Bio-Education & Research Center, College of Marine Science, Gyeongsang National University, Tongyeong, Republic of Korea., Poon CTC; Department of Surgery, Queen Mary Hospital, Pokfulam, Hong Kong SAR, China., Seo JP; College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University, Jeju, South Korea., Baeck GW; Department of Marine Biology & Aquaculture/Department of Aquaculture Science/Institute of Marine Industry/Marine Bio-Education & Research Center, College of Marine Science, Gyeongsang National University, Tongyeong, Republic of Korea., Kim BY; Department of Marine Industrial and Maritime Police, College of Ocean Science, Jeju National University, Jeju, South Korea. kimby@jejunu.ac.kr., Park SC; College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, South Korea. parksec@snu.ac.kr.
Jazyk: angličtina
Zdroj: Forensic science, medicine, and pathology [Forensic Sci Med Pathol] 2024 Jun; Vol. 20 (2), pp. 644-651. Date of Electronic Publication: 2023 Oct 13.
DOI: 10.1007/s12024-023-00732-0
Abstrakt: The present case report aims to outline the post-mortem findings of an East Asian finless porpoise with upper aerodigestive tract obstruction using different post-mortem computed tomography (PMCT) visualization techniques and discusses the potential cause of death of this individual. A dead-stranded adult male East Asian finless porpoise was recovered from the Northern coast of Jeju Island, Republic of Korea. The carcass was frozen in Jeju National University within 2 h upon first reported. The PMCT examinations were performed at 120 kVp, 200 mAs with a section thickness of 1 mm. The scan field of view (sFOV) was set to 400 mm. Four image rendering techniques, including multi-planar reconstruction, three-dimensional volume rendering, perspective volume rendering, and minimum intensity projection technique, were used to aid the diagnosis of upper aerodigestive tract obstruction in the stranded finless porpoise. Conventional necropsy was performed to provide a complete necropsy report. Using PMCT, a Sebastidae of 24 cm measured length was found to be lodged in the left pharyngeal food channel and esophagus of the finless porpoise. Hard rays of the pectoral fin of the lodged fish have impaled the esophageal mucosa. Fishing gear was found to embed at the dorsal side of the lodged fish. The trachea was compressed ventrally and the arytenoepiglottic tube opening has been narrowed, which may precipitate to the finless porpoise difficult breathing. Pulmonary hyperinflation, pulmonary edema, pneumothorax, pneumopericardium, and pneumorrhachis were observed. This case report represents the first documentation of potential radiological indicators of upper aerodigestive tract obstruction in the East Asian finless porpoise using PMCT. Spatial location of the lodged item could be rendered in situ as the time of death. It has demonstrated that PMCT could provide objective measurements to adjunct the necropsy findings in diagnosis of fatal aerodigestive tract obstruction in stranded cetaceans.
(© 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
Databáze: MEDLINE
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