Do People of Color Have an Earlier Onset of CTCL? (Chapter 8)
Luis Malpica Castillo, MD, Assistant Professor, Department of Lymphoma/Myeloma, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, discusses early onset of cutaneous T-cell lymphoma (CTCL) in people of color.
Cutaneous T-cell lymphoma belongs to the non-Hodgkin lymphoma class of hematologic T-cell lymphoproliferative disorders. Cutaneous T-cell lymphoma is a rare group of malignancies, with an incidence of 6.4 cases per 1 million people. This form of T-cell lymphoma represents around 70% of primary cutaneous lymphomas.
Cutaneous T-cell lymphoma attacks the the body’s immune system, specifically, the lymphatic system, affecting the two types of white blood cells (lymphocytes): B-cells and T-cells. Whereas the B-lymphocytes act to neutralize the pathogens, the main job of the T-lymphocytes is to attach to these foreign cells, viruses, or cancerous growths, and directly destroy them.
Compared with other T-cell lymphomas, a distinguishing feature of CTCL is implied by the name: malignant T-cells migrating to, and collecting in, cutaneous tissue. Diagnosis can be challenging, because the initial signs and symptoms are largely skin-related and overlap with those of many other dermatologic disorders. Adding to the challenge, CTCL variants present with overlapping symptomatology, and correct identification of the CTCL subtype is key to both treatment and prognosis. Histopathologic features must be correlated with the clinical presentation to confirm the diagnosis.
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