A 35-year-old man has a small lump in his left cervical area. He did not consult a doctor. After several weeks, he felt several more lumps in the same area. At the same time, he has experienced weight loss, fatigue, and low-grade night fever. His doctor immediately took a biopsy of the lump and found a giant Reed-Sternberg cell.
What would be the diagnosis of this patient?
Identify the stage of the disease for this patient.
Identify how the disease is different from similar diseases.
Discuss the possible treatments for the disease.