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Morphological study of apocrine gland tumors in domestic Richardson's ground squirrels ( Urocitellus richardsonii ).
- Source :
-
Veterinary pathology [Vet Pathol] 2023 Mar; Vol. 60 (2), pp. 276-281. Date of Electronic Publication: 2022 Dec 24. - Publication Year :
- 2023
-
Abstract
- The morphology of 58 apocrine tumors from 31 domestic Richardson's ground squirrels ( Urocitellus richardsonii ) was examined, comparing tumor subtypes with clinical information and histological findings. The squirrels included 23 males (74%) and 8 females (26%). Of the 58 tumors, 36 (62%) were located from the cervical skin to the dorsal skin, 17 (29%) were from the perioral region to the cheek, and the location was unrecorded for the remaining 5 squirrels (9%). Histologically, 49 tumors (84%) were apocrine adenocarcinomas, 6 were apocrine adenomas (10%), and 3 were apocrine cysts (5%). The 49 apocrine adenocarcinomas were subclassified as 16 (33%) cystic papillary type, 16 (33%) tubulopapillary type, 12 (24%) solid type, and 5 (10%) micropapillary invasive type. Fisher's exact test revealed correlations between tumor subtypes and tumor diameters, nuclear atypia, tumor margins, vascular invasion, and periodic acid-Schiff (PAS) positivity. This study showed a predominance of apocrine adenocarcinomas with various histological subtypes. In addition, subclassification of these tumors was useful for predicting the biological behavior of apocrine gland tumors in Richardson's ground squirrels.
Details
- Language :
- English
- ISSN :
- 1544-2217
- Volume :
- 60
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- Veterinary pathology
- Publication Type :
- Academic Journal
- Accession number :
- 36565268
- Full Text :
- https://doi.org/10.1177/03009858221146098