AI Article Synopsis
- - A 5-year-old male Siberian chipmunk had an enlarged left testicle, leading to a diagnosis that considered various types of testicular tumors or inflammation.
- - Upon conducting a fine needle aspiration, doctors found it to be a seminoma and proceeded with a bilateral orchiectomy (removal of both testicles).
- - The chipmunk recovered well post-surgery, and a check-up two years later showed no signs of illness, indicating that surgery can lead to a long-term disease-free outcome in chipmunks.
Article Abstract
A 5-year-old male Siberian chipmunk (Tamias sibiricus) was presented with marked enlargement of the left testicle. Differential diagnoses included testicular neoplasia such as seminoma, interstitial cell neoplasia, Sertolli cell neoplasia and teratoma or orchitis. Fine needle aspiration of the left testicle was performed under general anesthesia and cytologic findings were consistent with seminoma. Following bilateral orchiectomy, both testicles were examined histologically, revealing bilateral diffuse seminoma. The chipmunk made an uneventful recovery from anesthesia and was treated with analgesics. Follow up two years after surgery, no clinical signs were observed. Seminomas are rare in chipmunks, but orchiectomy may result in long-term disease-free survival as described in other myomorph rodents.
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| http://dx.doi.org/10.1016/j.tcam.2024.100922 | DOI Listing |
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Article Synopsis
- - A 5-year-old male Siberian chipmunk had an enlarged left testicle, leading to a diagnosis that considered various types of testicular tumors or inflammation.
- - Upon conducting a fine needle aspiration, doctors found it to be a seminoma and proceeded with a bilateral orchiectomy (removal of both testicles).
- - The chipmunk recovered well post-surgery, and a check-up two years later showed no signs of illness, indicating that surgery can lead to a long-term disease-free outcome in chipmunks.
Traditional multilocus phylogeny fails to fully resolve Palearctic ground squirrels (Spermophilus) relationships but reveals a new species endemic to West Siberia.
Mol Phylogenet Evol
June 2024
Department of Zoology and Ecology, Penza State University, Krasnaya Str. 40, Penza 440026, Russia. Electronic address:
Previous efforts to reconstruct evolutionary history of Palearctic ground squirrels within the genus Spermophilus have primarily relied on a single mitochondrial marker for phylogenetic data. In this study, we present the first phylogeny with comprehensive taxon sampling of Spermophilus via a conventional multilocus approach utilizing five mitochondrial and five nuclear markers. Through application of the multispecies coalescent model, we constructed a species tree revealing four distinct clades that diverged during the Late Miocene.
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