This information is provided by the National Institutes of Health (NIH) Genetic and Rare Diseases Information Center (GARD).
Sezary syndrome is an aggressive form of cutaneous T-cell lymphoma which is a group of disorders that occur when T-cells (a type of white blood cell) become cancerous and affect the skin. It is characterized by a widespread red rash that may cover most of the body, the presence of cancerous T cells (called Sezary cells) in the blood, and abnormally enlarged lymph nodes. Other signs and symptoms may include intense itchiness, scaling and peeling of the skin; fever; weight loss; hair loss; outward turning of the eyelids (ectropion); palmoplantar keratoderma; malformation of the nails; and hepatosplenomegaly. The exact cause of Sezary syndrome is currently unknown. Treatment varies based on the signs and symptoms present in each person and the severity of the condition.
For more information, visit GARD.