Collecting and Storing Tissue Samples From Patients With Rare or Cutaneous Non-Hodgkin Lymphoma

Inclusion Criteria:

   - Diagnosis of NHL

      - Any histology, except for Burkitt or Burkitt-like, diffuse large B-cell,
      anaplastic large cell, or lymphoblastic lymphoma

      - Primary CNS, primary cutaneous NHL, or lymphoproliferative diseases of any
      histology allowed

   - Pathological specimen from site not treated within the past 6 months

   - Must have specimens available

   - At least 6 months since prior chemotherapy irradiation to study lesion

   - At least 2 weeks since prior steroids