Malignant histiocytosis is a disease found primarily in the Bernese Mountain Dog characterized by infiltration of the lungs, lymph nodes, and other organs by histiocytes.

• 恶性组织细胞增生症是一种主要发现于伯恩山地犬的疾病，该疾病通过组织细胞浸润肺、淋巴结和其他器官。