Mycosis fungoides pathophysiology

Cutaneous T cell lymphoma Microchapters
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Overview
Classification Mycosis fungoides Sezary syndrome
Pathophysiology

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Sowminya Arikapudi, M.B,B.S. [2]

Pathophysiology

• Cutaneous T cell lymphoma is an unusual expression of T-cells, a part of the immune system
• These T-cells are skin-associated, meaning that they biochemically and biologically are most related to the skin, in a dynamic manner
• Sezary syndrome and Mycosis Fungoides are T-cell lymphomas whose primary manifestation is in the skin
• Mycosis Fungoides is the most common type of 'Cutaneous T cell lymphoma' (CTCL)
• Mycosis fungoides is initially an indolent lymphoma but in its later stages can cause peripheral lymphadenopathy and can finally progress to widespread extracutaneous visceral / internal organ involvement
• "Sézary's cells" are T-cells that have pathological quantities of mucopolysaccharides
• Sézary's disease is sometimes considered a late stage of mycosis fungoides

Microscopic Pathology

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  Sézary's disease

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  Micrograph showing cutaneous T-cell lymphoma. H&E stain.

References

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