Chirurgie subkutaner Mastzelltumoren beim Hund: Prognosefaktoren und Outcome

2021 ◽  
Vol 49 (03) ◽  
pp. 228-228
Author(s):  
Daniela Simon Betz

Gill V, Leibman N, Monette S et al. Prognostic Indicators and Clinical Outcome in Dogs with Subcutaneous Mast Cell Tumors. J Am Anim Hosp Assoc 2020; 56 (4): 215–225 Mastzelltumoren (MZT) sind häufige kutane Neoplasien beim Hund, für die verschiedene prognostische Faktoren beschrieben wurden. Zu diesen zählen der histologische Grad nach Patnaik (3 Grade) oder Kiupel (2 Grade) sowie einige Marker zellulärer Differenzierung wie AgNORs (agyrophylic nuclear organizer regions), Ki-67 oder PCNA (proliferating cell nuclear antigen). Weitere prognostisch aussagekräftige Parameter sind der c-Kit-Mutationsstatus, die mikrovaskuläre Dichte (microvascular density, MVD) und der mitotische Index (MI). Ziel der Studie war, den klinischen Verlauf nach operativer Entfernung subkutaner MZT beim Hund auszuwerten und die Wertigkeit der verschiedenen Prognosefaktoren zu validieren.

2020 ◽  
Vol 56 (4) ◽  
pp. 215-225 ◽  
Author(s):  
Virginia Gill ◽  
Nicole Leibman ◽  
Sebastien Monette ◽  
Diane M. Craft ◽  
Philip J. Bergman

ABSTRACT The purpose of this study was to determine if clinical findings, histologic grade, or other histologic features were associated with clinical outcome in dogs with subcutaneous mast cell tumors (MCTs). Medical records of 43 client-owned dogs were retrospectively reviewed, and follow-up information was gathered via phone or follow-up examination. Progression-free survival (PFS), disease-free interval (DFI), and overall survival were calculated. Forty-two and twenty-two dogs, respectively, had grade 2 (Patnaik grading system) or low-grade tumors (two-tier grading system). Median PFS was 1474 days. Median DFI was not reached at >1968 days. Overall median survival time was not reached at >1968 days. In univariate analysis, argyrophilic nucleolar organizer regions (AgNORs), proliferating cell nuclear antigen, and mitotic index were negatively prognostic for PFS whereas Ki-67, proliferating cell nuclear antigen, and microvessel density were negatively prognostic for DFI. In multivariate analysis, AgNORs remained negatively prognostic for PFS. Results suggest that proliferation indices, especially AgNORs, may be useful in predicting the rare poor outcomes in dogs with subcutaneous MCTs. The vast majority of subcutaneous MCTs appear to be low or intermediate grade with excellent outcomes from good local tumor control.


1997 ◽  
Vol 235 (12) ◽  
pp. 767-772 ◽  
Author(s):  
Tatsuo Kodama ◽  
Katsue Kawamoto ◽  
Tatsuro Kono ◽  
Yuzo Shibuya ◽  
Tomoichi Setogawa

1998 ◽  
Vol 124 (9) ◽  
pp. 497-502 ◽  
Author(s):  
Leena Setälä ◽  
Veli-Matti Kosma ◽  
Pertti Lipponen ◽  
Anita Naukkarinen ◽  
Stig Nordling ◽  
...  

Urology ◽  
1994 ◽  
Vol 43 (5) ◽  
pp. 660-666 ◽  
Author(s):  
Susan E. Spires ◽  
C. Darrell Jennings ◽  
Evelyn R. Banks ◽  
David P. Wood ◽  
Diane D. Davey ◽  
...  

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