The prognosis/mortality rate in mycosis fungoides (MF)/cutaneous T-cell lymphomas (CTCL) is alarming in resource-poor countries due to delayed diagnosis in meeting recognised criteria. We highlight the diagnostic accuracy of examining peripheral blood films (PBFs). We reviewed clinically diagnosed MF/CTCL cases in the Dermatology Clinic of Lagos University Teaching Hospital between January and October 2022 and analysed clinical, haematological and histology findings. Eight patients (male:female = 5:3) between 35 and 68 years had blood films with characteristic Sezary cells of <5%. Flow cytometry (FC) in 1 (12.5%) was inconclusive, and immunohistochemistry (IHC) on skin/lymph nodes in 5 (62.5%) was highly suggestive or confirmatory. Three patients had no biopsy. Patients had methotrexate, phototherapy (±psoralen) and systemic steroids with varying improvements. Since immunophenotyping (FC or IHC) is lacking in resource-poor countries or low- and middle-income countries, Sezary cells in PBF of clinically diagnosed patients with MF/CTCL should prompt treatment.
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http://dx.doi.org/10.4103/npmj.npmj_48_24 | DOI Listing |
J Cutan Med Surg
December 2024
Department of Dermatology and Venereology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
Background: Studies comparing the clinical and prognostic differences between pediatric- and adult-onset mycosis fungoides (MF) are limited.
Objectives: To determine the impact of childhood-onset MF on clinical features and disease course in a large series.
Methods: Consecutive MF patients seen in a single centre between 2007 and 2021 were categorized into 3 groups: (i) MF patients diagnosed in the pediatric ages (≤18 years) (pediatric group), (ii) MF patients with disease onset in the pediatric period and diagnosis in adulthood (lately diagnosed pediatric-onset group), and (iii) MF patients with disease onset in the adulthood period (>18 years) (adult-onset group).
J Clin Oncol
December 2024
Department of Dermatology, The University of Texas-MD Anderson Cancer Center, Houston, TX.
Purpose: Denileukin diftitox (DD)-cxdl is a fusion protein comprising diphtheria toxin fragments A and B and human interleukin-2. This phase III, multicenter, open-label, single-arm registrational trial evaluated the efficacy and safety of DD-cxdl in patients with relapsed/refractory (R/R) cutaneous T-cell lymphoma (CTCL).
Patients And Methods: In the main study, which followed a dose-finding lead-in, DD-cxdl was administered intravenously daily (5 days; 9 µg/kg/d once daily) every 21 days for up to eight cycles.
Clin Dermatol
December 2024
Department of Dermatology, Yale School of Medicine, New Haven, CT. Electronic address:
Cutaneous T cell lymphoma (CTCL) is a form of non-Hodgkin lymphoma that can involve the skin, along with lymph nodes and blood. The two most common subtypes of CTCL are mycosis fungoides and Sézary syndrome, Since the initial description of mycosis fungoides by Dr. Jean-Louis Alibert in 1806, there have been significant advances in our understanding of the pathogenesis of CTCL, its diverse clinical and histologic variants, and the evolving treatment landscape.
View Article and Find Full Text PDFAm J Dermatopathol
December 2024
Department of Dermatology, Penn State Health Milton S. Hershey Medical Center, Hershey, PA; and.
Primary cutaneous anaplastic large cell lymphoma (pcALCL) is a CD30+ lymphoproliferative disorder with generally favorable outcomes and infrequent extracutaneous spread, usually limited to local lymph nodes. However, there may be extensive histologic overlap with more aggressive CD30+ lymphomas, such as large cell transformation of mycosis fungoides or secondary skin involvement by anaplastic lymphoma kinase (ALK)-negative anaplastic large cell lymphoma. Definitive diagnosis relies on clinicopathologic correlation.
View Article and Find Full Text PDFCancers (Basel)
November 2024
Department of Dermatology, University Medical Centre Mainz, 55131 Mainz, Germany.
Background: Mycosis fungoides (MF) represents the most prevalent entity of cutaneous T cell lymphoma (CTCL). The MF aetiopathogenesis is incompletely understood, due to significant transcriptomic heterogeneity and conflicting views on whether oncologic transformation originates in early thymocytes or mature effector memory T cells. Recently, using clinical specimens, our group showed that the skin microbiome aggravates disease course, mainly driven by an outgrowing, pathogenic strain carrying the virulence factor spa, which was shown by others to activate the T cell signalling pathway NF-κB.
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