JSH practical guidelines for hematological malignancies, 2018: II. Lymphoma—overview
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The number of patients with newly diagnosed lymphoma in Japan was reported to be 24,778 in 2011. The prevalence has been increasing over the years, from 5.5 per 100,000 population in 1985 to 8.9 in 1995, 13.3 in 2005, and 19.4 in 2011.
It is more common in men than women (ratio of about 3:2) and incidence peaks in the 70–79 age group . It is broadly classified histologically into Hodgkin lymphoma (HL) and non-Hodgkin lymphoma (NHL), but the vast majority are NHL, and HL only account for approximately 5–10% of all lymphomas in Japan
Essential elements for diagnosis and treatment plan determination
The patient’s past medical history, diseases for which they are currently being treated, comorbidities, initial symptoms, timing of symptom onset, general symptoms (e.g., fever, weight loss, and night sweats), and place of birth if necessary should be determined by medical interview and recorded.
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