Myelofibrosis: Review of clinical and pathological features in fourteen dogs.

A clinicopathological study was performed on 14 dogs with myelofibrosis (MF), in order to correlate clinical, laboratory, and histomorphological parameters and investigate factors of prognostic significance. The clinical signs included fatigue, weight loss, anorexia, and diarrhea. Physical findings included pale mucous membranes and wasting/emaciation. The major laboratory observations were moderate to severe, poorly-responsive anemia with various degrees of marrow cellularity and fibrosis. All dogs with severe, non-responsive anemia should have a bone marrow core biopsy, stained for connective tissue, in order to detect myelofibrosis. Myelofibrosis regressed in six dogs.