Ultrasound-Guided Cytology of Spleen and Liver: A Prognostic Tool in Canine Cutaneous Mast Cell Tumor
Background: In the clinical staging of cutaneous mast cell tumors (cMCT), the diagnosis of metastasis is controversial based on cytological examination of lymph nodes, spleen, liver, bone marrow, and blood. Objectives: To define the prognostic role of ultrasound‐guided cytology of spleen and liver i...
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Published in | Journal of veterinary internal medicine Vol. 23; no. 5; pp. 1051 - 1057 |
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Main Authors | , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Malden, USA
Blackwell Publishing Inc
01.09.2009
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Subjects | |
Online Access | Get full text |
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Summary: | Background: In the clinical staging of cutaneous mast cell tumors (cMCT), the diagnosis of metastasis is controversial based on cytological examination of lymph nodes, spleen, liver, bone marrow, and blood.
Objectives: To define the prognostic role of ultrasound‐guided cytology of spleen and liver in cMCT. The results of cytological evaluation were compared in relation with survival time.
Animals: Fifty‐two client‐owned dogs with a diagnosis of cMCT.
Methods: Selection of cases was based on cytological evaluation of liver and spleen to detect infiltration at distant sites. The Kaplan Meier method was used to compare survival in dogs with and without infiltration of spleen and liver (log‐rank test P < .05).
Results: Ten dogs with cMCT had mast cell infiltration of spleen, liver, or both and 4 of these dogs had involvement of the regional lymph nodes. The majority of dogs had 2 or more ultrasonographically abnormal findings simultaneously in spleen and liver. Nine dogs had grade II cMCT, and 1 had grade III cMCT. Dogs with positive evidence of mast cell infiltration to spleen, liver, or both had shorter survival times (34 versus 733 days) compared with dogs negative for mast cell infiltration at distant sites.
Conclusion and Clinical Importance: Dogs with evidence of mast cell infiltration at distant sites have a shorter survival times than dogs without evidence of infiltration at distant sites. This study suggests that cytology of spleen and liver is indicated either for ultrasonographically normal or for ultrasonographically abnormal spleen and liver in dogs with cMCT. |
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Bibliography: | istex:3BD8DD5384FE06F705B1373C32D5061BBFF6FC55 ArticleID:JVIM354 ark:/67375/WNG-3LLCPHRS-T This work was done at the Facoltá di Medicina Veterinaria, Universitá degli Studi di Milano, Milano, Italia. This work has been presented as a short abstract during ESVONC Junior Research Award—Clinical Research, at 1st WORLDVETCANCER, from February 28 to March 1, 2008 in Copenhagen. ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 ObjectType-Article-2 ObjectType-Feature-1 |
ISSN: | 0891-6640 1939-1676 |
DOI: | 10.1111/j.1939-1676.2009.0354.x |