Histiocytic sarcomas (HS) (formerly malignant histiocytosis - MH) occur with high incidence in Bernese Mountain Dogs, Rottweilers, Flat Coated Retrievers, Golden Retrievers and sporadically in many other breeds.
Canine cutaneous histiocytoma, which exhibits evidence of LC differentiation, usually occurs as a solitary lesion in young dogs and spontaneously regresses.
Canine Histiocytosis