This study investigates the collection and storage of specimens for research related to T-Cell lymphoma and leukemia. T-Cell lymphoma and leukemia are types of cancer that affect the lymphatic system and blood, respectively. The study aims to gather samples from patients to aid future research in diagnosing and treating these conditions.

Participants will undergo procedures such as blood draws, lymph node or skin biopsy, bone marrow aspirate, apheresis, or splenectomy, which are part of their standard medical care. Archived samples from past procedures may also be used. These procedures involve collecting tissues or fluids to help researchers understand the diseases better.

• Who can participate: Patients diagnosed with or suspected of having T-cell leukemia or lymphoma are eligible if they are undergoing standard medical procedures like phlebotomy or biopsy. Archived samples from past procedures may also qualify them for participation.
• Study details: Participants will provide samples through medical procedures like blood draws or biopsies, which are part of their regular care. Archived samples from previous procedures may also be donated for research.