Case of mastocytemia and systemic mastocytosis in a dog : ProCyte Dx and Sysmex XT-2000i scattergram findings, morphologic features, and c-kit somatic mutation analysis

© 2023 American Society for Veterinary Clinical Pathology.

Bibliographische Detailangaben
Veröffentlicht in:Veterinary clinical pathology. - 1975. - 52(2023), 2 vom: 07. Juni, Seite 334-340
1. Verfasser: Palić, Jelena (VerfasserIn)
Weitere Verfasser: Heier, Annabelle, Acke, Els, Hergt, Franziska, Turba, Maria Elena
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Veterinary clinical pathology
Schlagworte:Case Reports KIT tyrosine kinase receptor MCT PCR blood smear dot plot exon 9 extracutaneous/extramucosal liver and spleen cytology
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520 |a A 10-year-old female Golden Retriever was presented for a recheck after the complete removal of low-grade complex mammary carcinoma. The in-house ProCyte Dx automated counts revealed moderate regenerative anemia and moderate eosinophilia. The ProCyte Dx WBC scattergram showed a cloud in an unusual place parallel and to the right of the monocyte dot plot location. Cells were classified as either monocytes or neutrophils with no clear separation. Complete blood count analysis performed in the laboratory on a Sysmex XT-2000iV analyzer showed moderate regenerative anemia and WBC count within RI; a differential count was not provided by the instrument. On the Sysmex XT-2000iV DIFF scattergram, neutrophil and eosinophil dot plots were present at the respective locations and appeared separated, but the instrument did not provide numerical results. In addition to the normal lymphocyte dot plot location, the second cloud of cells classified as lymphocytes was displayed to the right of the monocyte dot plot area. On the WBC/BASO scattergram, the second population of cells was present above and to the right of the leukocyte cluster. Morphologic assessment of the blood smear detected mastocytemia with 16% poorly granulated and degranulated mast cells. FNAs from the liver and spleen contained large aggregates of poorly granulated mast cells. C-kit somatic mutation screening detected the presence of point mutation S479I in exon 9 of the canine c-KIT gene. This is the first description of abnormal scattergrams from ProCyte Dx and Sysmex XT-2000iV analyzers in a dog with concurrent mastocytemia and systemic mastocytosis, and where cytologic assessments of a blood smear, liver, and spleen, and c-kit somatic mutation analysis were performed 
650 4 |a Case Reports 
650 4 |a KIT tyrosine kinase receptor 
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650 4 |a liver and spleen cytology 
700 1 |a Heier, Annabelle  |e verfasserin  |4 aut 
700 1 |a Acke, Els  |e verfasserin  |4 aut 
700 1 |a Hergt, Franziska  |e verfasserin  |4 aut 
700 1 |a Turba, Maria Elena  |e verfasserin  |4 aut 
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