Natthanet Sritrakoon(1), Kannika Siripattarapravat(2), Phudit Maneesaay(2), Chidozie J. Amuzie(3) and Aree Thayananuphat(4,*)
1 Ophthalmology Unit, Kasetsart University Veterinary Teaching Hospital, Bangkok, 10900, Thailand
2 Department of Pathology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, 10900, Thailand
3 MPI Research, Mattawan, Michigan, 49071, USA
4 Department of Companion Animal Clinical Sciences, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, 10900, Thailand
This report characterized seven cases of canine retrobulbar lymphoma that have been diagnosed during 2008 to 2014 by immunophenotyping of CD3 and Pax5. Classification of lymphoma were performed according to the revised WHO guidelines. Four retrobulbar lymphomas were of T-cell origin, while the others were of B-cell. Out of 7 cases, four subtypes were diagnosed in this study; T-cell-rich large B-cell lymphoma (3/7), T-cell lymphoblastic lymphoma (2/7), peripheral T-cell lymphoma (1/7), and cutaneous nonepitheliotropic lymphoma (1/7). T-cell-rich large B-cell lymphoma was found to be the most frequent subtype found.Keywords: Dog, Immunohistochemistry, Lymphoma, Retrobulbar.