Cutaneous T-Cell Lymphoma With Conjunctival T-Lymphocyte Infiltration in a Dog.

This case underscores the need to consider neoplastic disease in dogs presenting with chronic conjunctivitis, particularly when mucocutaneous lesions are also present. The identification of T-lymphocyte-predominant conjunctival infiltration in a dog with confirmed cutaneous T-cell lymphoma suggests either an early stage of neoplastic involvement or a reactive inflammatory process. These findings emphasize the value of careful diagnostic evaluation, including tissue biopsy and immunohistochemistry, when managing refractory ocular inflammatory conditions.