Extracardiac adult-type rhabdomyoma-Report of two cases in dogs

© 2023 American Society for Veterinary Clinical Pathology.

Bibliographische Detailangaben
Veröffentlicht in:Veterinary clinical pathology. - 1975. - 52(2023), 4 vom: 01. Dez., Seite 705-708
1. Verfasser: Paździor-Czapula, Katarzyna (VerfasserIn)
Weitere Verfasser: Bhaya, Muhammad Nasir, Piotrowska, Agnieszka, Otrocka-Domagała, Iwona
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Veterinary clinical pathology
Schlagworte:Case Reports Journal Article cytology desmin dog granular cell tumor histopathology immunohistochemistry oncocytoma
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520 |a This report describes the cytologic, histopathologic, and immunohistochemical features of adult-type rhabdomyoma located within the subcutaneous tissue in a 14-year-old female Border Collie (thigh) and a 13-year-old male Mongrel (flank). In both cases, fine-needle aspiration biopsy revealed cluster-forming, epithelial-like polygonal cells with abundant foamy cytoplasm, and moderate to marked anisocytosis and anisokaryosis; therefore, an epithelial tumor was suspected. After surgical excision, tumors underwent histopathologic examination with additional immunohistochemistry. Both tumors were well-demarcated and located within the subcutaneous tissue in the vicinity of the cutaneous muscle. The tumor mass consisted of densely packed round or polygonal cells with distinct vacuolation of the cytoplasm. Tumor cells expressed vimentin, desmin, and NSE and were cytokeratin and α-SMA negative. Based on histologic features and immunophenotyping, adult-type rhabdomyoma was diagnosed in both cases. This study highlights that the cytologic features of rhabdomyoma can be misleading and may suggest an epithelial tumor 
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700 1 |a Bhaya, Muhammad Nasir  |e verfasserin  |4 aut 
700 1 |a Piotrowska, Agnieszka  |e verfasserin  |4 aut 
700 1 |a Otrocka-Domagała, Iwona  |e verfasserin  |4 aut 
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