Related Experiment Video
Updated: Oct 2, 2026

Isolating Human Peripheral Blood Mononuclear Cells and CD4+ T cells from Sézary Syndrome Patients for Transcriptomic Profiling
Published on: October 14, 2021
[Transformation of mycosis fungoides to pleomorphic T-cell lymphoma and central nervous system involvement]
L Guilloton1, A Drouet, J L Estival
1Service de neurologie, hôpital d'instruction des armées Desgenettes, 108, boulevard Pinel, 69275 Lyon, France. laurent guilloton@santesurf.com
Introduction:
Although mycosis fungoides is a malignant T-cell lymphoma involving mainly the skin, neurological complications are possible, with a poor prognosis.
Exegesis:
A 59-year-old man, treated for mycosis fungoides with transformation to a pleomorphic T-cell lymphoma for 1 year, was seen for mental status changes with confusion. A brain parenchyma localisation was found.
Conclusion:
This observation emphasizes the exceptional neurological tropism in the patients with mycosis fungoides. A transformation to a more aggressive cutaneous T-cell lymphoma seems necessary to induce a central nervous system involvement.
