Suspected primary bone marrow T-cell lymphoid neoplasia causing paraneoplastic hypercalcemia in 11 dogs (2014-2021).

Objective: To describe the clinical findings and outcome in hypercalcemic dogs that were diagnosed with T-cell lymphoid neoplasia by bone marrow evaluation.

Animals: 11 client-owned dogs, identified retrospectively through 2 diagnostic laboratories between 2014 and 2021.

Clinical Presentation: Cases presented with hypercalcemia and lacked overt evidence of lymphoid neoplasia in the blood or nonmedullary tissues.