preferred_name: Malignant mast cell tumors, lymph nodes of head, face, and neck
preferred_name_lc: malignant mast cell tumors, lymph nodes of head, face, and neck
label: Malignant mast cell tumors involving lymph nodes of head, face, and neck
label_lc: malignant mast cell tumors involving lymph nodes of head, face, and neck