Lymphoma can be treated in the departments of hematology or oncology, where chemotherapy for lymphoma can be conducted by both. In our hospital, radiotherapy is performed in the oncology department, not by the hematology department, which only provides chemotherapy. If lymphoma has not been confirmed and there is only superficial lymph node enlargement clinically, then examinations such as ultrasound or PADCT suggest the possibility of lymphoma. In such cases, patients can visit the general surgery department for a lymph node biopsy to confirm the diagnosis. After confirmation, the patient can register in either the hematology or oncology department for further treatment.