Mycosis Fungoides / Sézary Syndrome
Deterministic view of the source YAML entity. Clinical authority remains with the cited source IDs and reviewer sign-off state.
| ID | DIS-MF-SEZARY |
|---|---|
| Type | Disease |
| Aliases | MFMF/SSSézaryГрибоподібний мікоз / Синдром Сезарі |
| Status | reviewed 2026-04-25 | pending_clinical_signoff |
| Diseases | None declared |
| Sources | SRC-NCCN-BCELL-2025 |
Informational support. All recommendations must be verified by a qualified oncologist. Engineering checks are not clinical validation or treatment approval.
| icd_o_3_morphology | 9700/3 |
|---|---|
| icd_10 | C84.0 |
| who_classification | Mature T-cell neoplasms — Mycosis fungoides / Sézary syndrome per WHO 5th ed. |
Notes
TNMB staging unique to MF (skin Tumor + Node + Metastasis + Blood involvement). Treatment fundamentally stage-based: skin-directed (topical steroids, NBUVB, PUVA, TSEBT) for early; systemic (mogamulizumab, brentuximab if CD30+, ECP, methotrexate, romidepsin, alemtuzumab) for advanced. Sézary syndrome variant always advanced. Out of Tier 1 detailed treatment scope for now — placeholder disease entity with skin-directed-then-systemic algorithm planned for next iteration.
Used By
Actionability
BMA-JAK3-CTCL- Ruxolitinib cream (Opzelura) received FDA approval (September 2022) for mild-to-moderate...
Algorithms
ALGO-MF-SEZARY-1L- ALGO-MF-SEZARY-1LALGO-MF-SEZARY-2L- ALGO-MF-SEZARY-2L
Disease
DIS-ATLL- Adult T-Cell Leukemia/Lymphoma
Indication
IND-MF-ADVANCED-1L-BV- IND-MF-ADVANCED-1L-BVIND-MF-ADVANCED-1L-MOGA- IND-MF-ADVANCED-1L-MOGAIND-MF-ADVANCED-2L-BEXAROTENE- IND-MF-ADVANCED-2L-BEXAROTENEIND-MF-EARLY-1L-SKIN-DIRECTED- IND-MF-EARLY-1L-SKIN-DIRECTEDIND-MF-MAINTENANCE-RETINOID- IND-MF-MAINTENANCE-RETINOID
Questionnaires
QUEST-MF-SEZARY-1L-STUB- Mycosis Fungoides / Sézary Syndrome — first line
Red flag
RF-MF-LARGE-CELL-TRANSFORMATION- MF with large-cell transformation (LCT — ≥25% large cells on biopsy review) — aggressive...RF-MF-SEZARY-FRAILTY-AGE- Frailty profile influencing MF/Sézary therapy selection: ECOG ≥3, OR (age ≥75 with G8 ≤14...RF-MF-SEZARY-INFECTION-SCREENING- Active or latent infection requiring resolution / prophylaxis before initiating systemic...RF-MF-SEZARY-LEUKEMIC- MF with B2 blood involvement (Sézary cell count ≥1000/μL OR ≥5% Sézary by morphology) — d...RF-MF-SEZARY-ORGAN-DYSFUNCTION- Baseline organ dysfunction influencing MF/Sézary systemic-therapy selection: LVEF <50% (g...
Sources
SRC-ESMO-CTCL-2024- ESMO Clinical Practice Guideline on Primary Cutaneous Lymphomas (CTCL — MF / Sézary syndr...SRC-ESMO-PTCL-2024- ESMO Clinical Practice Guideline on Peripheral T-cell Lymphomas