Bone marrow bi-hypoplasia in a dog with a sertoli cell tumor

被引:3
|
作者
Valente, P. C. L. G. [1 ]
Couto, R. M. [1 ]
Gamba, C. O. [1 ]
Vasconcelos, A. V. [1 ]
Leme, F. O. P. [1 ]
Ecco, R. [1 ]
Paes, P. R. O. [1 ]
机构
[1] Univ Fed Minas Gerais, Belo Horizonte, MG, Brazil
关键词
dog; hyperestrogenism; pancytopenia;
D O I
10.1590/1678-4162-8922
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
A 20-year-old unneutered male poodle presented prostration, apathy, staggering gait, lack of appetite and tick infestation. The dog was diagnosed with a Sertoli cell tumor in an undescended testicle by cytological, histopathological and immunohistochemical tests. Pancytopenia with moderate nonregenerative anemia, leukopenia and severe thrombocytopenia were detected in the complete blood count. Cytological and histopathological evaluation of the bone marrow revealed a cellularity of 30%, with erythroid (59%), lymphoid (40%) and mast cells (1%), and an absence of granulocytic, monocytic and megakaryocytic lineage cells. In post-mortem examinations, changes related to hemostatic disorders were found. The absence of microorganisms in molecular tests and an estrogen serum concentration over reference values confirmed hyperestrogenism as a possible cause of pancytopenia. The literature describes a Sertoli cell tumor hyperestrogenism that induced pancytopenia, along with bone marrow hypoplasia of all hematopoietic lineages. In contrast, in the present case, the erythroid precursor cells were preserved in the bone marrow, although there were no reticulocytes circulating in the blood. This case, therefore, should be considered in future investigations of pancytopenia induced by Sertoli cell tumor hyperestrogenism.
引用
收藏
页码:95 / 100
页数:6
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