The disease in the lungs is characterized by enlargement of the tracheobronchial lymph nodes and infiltration of the lungs, sometimes leading to lung lobe consolidation and pleural effusion. Signs and symptoms include cough, loss of appetite, weight loss, anemia, and difficulty breathing. Seizures and rear limb weakness can be seen. Invasion of the bone marrow can cause pancytopenia. Diagnosis requires a biopsy.
Malignant histiocytosis
Langerhans cell histiocytosis
Mast cell sarcoma
X-type histiocytosis
Sea-blue histiocytosis
Non-Langerhans cell histiocytosis
Angiomatoid fibrous histiocytoma
Non-X histiocytosis