Presumed hemocytic neoplasms in scorpions.

IF 2.3 2区 农林科学 Q2 PATHOLOGY
Veterinary Pathology Pub Date : 2024-11-01 Epub Date: 2024-06-11 DOI:10.1177/03009858241257898
Shawn Thomas, Christopher Gaudette, Simon Spiro, Daniel S Dombrowski, Elise E B LaDouceur
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Abstract

Although neoplasia has been documented in invertebrates, it has not been reported in scorpions. This report describes presumed hemocytic neoplasia in 2 scorpions: a >3-year-old, female emperor scorpion (Pandinus imperator) and a >4-year-old, male, Asian forest scorpion (Heterometrus sp.). The emperor scorpion had a 1-month history of body wall swelling separating the exoskeleton of the caudal opisthosoma. At necropsy, this corresponded to a white mass in the caudal coelom. The forest scorpion was found dead and processed whole for histology, at which point multiple masses were identified in the coelom and invading skeletal muscle. Histologically, both masses were composed of sheets of hemocytes with round to oval nuclei; eosinophilic, periodic acid Schiff-positive, cytoplasmic granules; mild cellular atypia; and low mitotic rates. Features of inflammation (e.g., melanization and nodulation) were not observed. These masses were diagnosed as a hemocytoma (emperor scorpion) and a hemocytic sarcoma (forest scorpion), possibly of plasmatocyte origin.

蝎子中的假定血细胞肿瘤。
虽然在无脊椎动物中也有肿瘤的记录,但在蝎子中却未见报道。本报告描述了两只蝎子的推测血细胞瘤:一只年龄大于 3 岁的雌性帝王蝎(Pandinus imperator)和一只年龄大于 4 岁的雄性亚洲森林蝎(Heterometrus sp.)。这只帝王蝎曾在 1 个月前出现体壁肿胀,尾部开口瘤的外骨骼分离。经尸体解剖,这与尾腹腔内的白色肿块相对应。林蝎被发现时已经死亡,在进行组织学处理时,发现腹腔内有多个肿块,并侵入骨骼肌。从组织学角度来看,这两个肿块都是由成片的血细胞组成,细胞核呈圆形至椭圆形;嗜酸性、周期性酸希夫阳性、胞浆颗粒状;细胞轻度不典型;有丝分裂率低。未观察到炎症特征(如黑化和结节)。这些肿块被诊断为血细胞瘤(帝王蝎)和血细胞肉瘤(森林蝎),可能源自浆细胞。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Veterinary Pathology
Veterinary Pathology 农林科学-病理学
CiteScore
4.70
自引率
8.30%
发文量
99
审稿时长
2 months
期刊介绍: Veterinary Pathology (VET) is the premier international publication of basic and applied research involving domestic, laboratory, wildlife, marine and zoo animals, and poultry. Bridging the divide between natural and experimental diseases, the journal details the diagnostic investigations of diseases of animals; reports experimental studies on mechanisms of specific processes; provides unique insights into animal models of human disease; and presents studies on environmental and pharmaceutical hazards.
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