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Lebas E, Collins P, Somja J, Nikkels AF. A Comprehensive Update of the Atypical, Rare and Mimicking Presentations of Mycosis Fungoides. Dermatol Ther (Heidelb) 2021; 11:1931-1951. [PMID: 34709600 PMCID: PMC8611162 DOI: 10.1007/s13555-021-00625-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Indexed: 12/12/2022] Open
Abstract
Introduction Mycosis fungoides (MF) is the most frequent subtype of primary cutaneous T cell lymphomas (pCTCL). The diagnosis may be particularly difficult in the early stages as well as in atypical and rare clinical presentations. Furthermore, MF may simulate a large variety of common dermatologic disorders and patterns, both histopathologically and clinically. Methods A literature search was performed to provide a comprehensive update on the rare and atypical MF manifestations as well as the dermatoses and dermatological patterns that could be imitated by MF. Results A total of 114 publications were found describing a series of different dermatoses and dermatological patterns mimicked by MF, as well as some particular localizations of MF lesions and dermatoses that occur in preexisting MF lesions. Conclusions The number of dermatoses that can be imitated by MF is ever-increasing. Patients with common dermatologic conditions that prove to be treatment refractory should be biopsied without delay, and sequentially as necessary, to prevent delay in diagnosis and progression of disease. Clinicopathologic correlation is the best way of diagnosis.
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Affiliation(s)
- Eve Lebas
- Department of Dermatology, CHU du Sart Tilman, University of Liège, 4000, Liège, Belgium
| | - Patrick Collins
- Department of Dermatopathology, CHU du Sart Tilman, University of Liège, 4000, Liège, Belgium
| | - Joan Somja
- Department of Dermatopathology, CHU du Sart Tilman, University of Liège, 4000, Liège, Belgium
| | - Arjen F Nikkels
- Department of Dermatology, CHU du Sart Tilman, University of Liège, 4000, Liège, Belgium.
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Nasimi M, Kamyab K, Aghahi T, Fahim S, Ghandi N. Childhood mycosis fungoides: A clinicopathologic study of 30 cases from Iran. Australas J Dermatol 2019; 61:e259-e261. [DOI: 10.1111/ajd.13192] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Maryam Nasimi
- Department of Dermatology Autoimmune Bullous Disease Research Centre Razi Hospital Tehran University of Medical Sciences Tehran Iran
| | - Kambiz Kamyab
- Department of pathology Razi Hospital Tehran University of Medical Sciences Tehran Iran
| | - Tahereh Aghahi
- Student of medicine Tehran University of Medical Sciences Tehran Iran
| | - Shabnam Fahim
- Department of Dermatology Pediatric Dermatology Fellowship Razi Hospital Tehran University of Medical Sciences Tehran Iran
| | - Narges Ghandi
- Department of Dermatology Autoimmune Bullous Disease Research Centre Razi Hospital Tehran University of Medical Sciences Tehran Iran
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Cutaneous Lymphoproliferative Disorders: What's New in the Revised 4th Edition of the World Health Organization (WHO) Classification of Lymphoid Neoplasms. Adv Anat Pathol 2019; 26:93-113. [PMID: 30199396 DOI: 10.1097/pap.0000000000000208] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Cutaneous lymphoproliferative disorders remain a challenging aspect of dermatopathology, in part due to the rarity of the entities and extreme variability in clinical outcomes. Although many of the entities remain unchanged, the approach to some of them has changed in the new 2016 classification scheme of the World Health Organization. Chief among these are Epstein-Barr virus-associated lymphoproliferative disorders such as Epstein-Barr virus-associated mucocutaneous ulcer and hydroa vacciniforme-like lymphoproliferative disorder, primary cutaneous CD8+ aggressive epidermotropic cytotoxic T-cell lymphoma, primary cutaneous acral CD8+ T-cell lymphoma, primary cutaneous CD4+ small/medium T-cell lymphoproliferative disorder, and breast implant-associated anaplastic large cell lymphoma. In addition, translocations and gene rearrangements such as those involving the 6p25.3 locus have started to inform diagnosis and classification of anaplastic large cell lymphoma and lymphomatoid papulosis. In this review, we will examine what is new in the diagnostic toolbox of cutaneous lymphoproliferative disorders.
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Rovaris M, Colato C, Girolomoni G. Pediatric CD8+/CD56+ mycosis fungoides with cytotoxic marker expression: A variant with indolent course. J Cutan Pathol 2018; 45:782-785. [DOI: 10.1111/cup.13317] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 06/14/2018] [Accepted: 06/28/2018] [Indexed: 12/19/2022]
Affiliation(s)
- Marco Rovaris
- Department of Medicine, Section of Dermatology and Venereology; University of Verona; Verona Italy
| | - Chiara Colato
- Department of Pathology and Diagnostics, Section of Pathology; University of Verona; Verona Italy
| | - Giampiero Girolomoni
- Department of Medicine, Section of Dermatology and Venereology; University of Verona; Verona Italy
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Abstract
This article focuses on cutaneous hematopoietic neoplasms that are more likely to be encountered in the pediatric age-group and includes both lymphoproliferative and histiocytic disorders. The cutaneous hematologic disorders in children have a different epidemiologic profile to what is seen during adulthood. Although mycosis fungoides is the most frequent form of cutaneous lymphoma in adults, it is very rare in children. Because lymphoblastic leukemias and lymphomas are more frequent in the pediatric setting, cutaneous leukemic infiltrates are relatively common in this age-group. Similarly, histiocytic disorders are more common in children, particularly Langerhans cell histiocytosis and juvenile xanthogranuloma. Notably, the histiocytic disorders have undergone significant modifications on their nomenclature in the basis of the molecular characteristics that are present in them. A summary of the most frequent cutaneous hematopoietic disorders in children will be discussed further in this review.
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Affiliation(s)
- Alejandro A Gru
- 1 Department of Pathology, University of Virginia, Charlottesville, Virginia
| | - Louis P Dehner
- 2 Lauren V. Ackerman Laboratory of Surgical Pathology, St. Louis Children's Hospital and Dermatopathology, Washington University Medical Center, St. Louis, Missouri
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Abstract
Cutaneous T-cell lymphomas comprise a heterogeneous group of diseases characterized by monoclonal proliferations of T lymphocytes primarily involving skin, modified skin appendages, and some mucosal sites. This article addresses the basic clinical, histologic, and immunohistochemical characteristics of this group of diseases, with additional attention to evolving literature on dermoscopy, reflectance confocal microscopy, flow cytometry, and molecular data that may increasingly be applied to diagnostic and therapeutic algorithms in these diseases. Select unusual phenotypes or diagnostic examples of classic phenotypes are demonstrated, and flags for consideration while making a pathologic diagnosis of cutaneous T-cell lymphoma are suggested.
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Affiliation(s)
- Melissa Pulitzer
- Department of Pathology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA.
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Virmani P, Levin L, Myskowski PL, Flores E, Marchetti MA, Lucas AS, Pulitzer M, Horwitz S, Trippett T, Moskowitz A, Querfeld C. Clinical Outcome and Prognosis of Young Patients with Mycosis Fungoides. Pediatr Dermatol 2017; 34:547-553. [PMID: 28804919 PMCID: PMC5653252 DOI: 10.1111/pde.13226] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND/OBJECTIVES Mycosis fungoides (MF) in young patients is rare and may have atypical presentations. There are limited data in these patients. The objective was to determine the clinical outcome and prognosis of young patients with MF. METHODS A search of our institutional cancer registry database was conducted for patients diagnosed with MF at younger than 30 years of age. RESULTS Our study included 74 patients (median age at diagnosis 25.5 yrs). Sixty-five (88%) presented with early stage disease and variants of MF (n = 44 [59%]), leading to a median delay in diagnosis of 2.5 years. Hypopigmented MF (n = 27 [36.5%]) was the most common variant, affecting predominantly African American (44.4% vs 19%; p = 0.02) and younger (20 vs 26 yrs; p < 0.001) patients. All patients with hypopigmented MF presented with early stage disease and were less likely to develop progressive disease (PD) than those with other variants (11% vs 34%; p = 0.03). Nineteen patients (26%) developed PD during a median follow-up of 3.5 years, which was associated with advanced-stage disease (89% vs 17%; p < 0.001), older age (>20 yrs) (31% vs 13%; p = 0.08), African American race (52.6% vs 20%; p = 0.009), and poikilodermatous presentation (p < 0.01). Overall survival was good (97.2% at 5 yrs, 95.9% at 10 yrs) despite the delay in diagnosis and atypical presentation. CONCLUSIONS Progressive disease is associated with older age, African American race, the poikilodermatous variant, and advanced-stage disease. The hypopigmented variant is a common presentation in young patients and has an indolent disease course. Our study confirms an overall favorable prognosis in young patients with MF.
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Affiliation(s)
- Pooja Virmani
- Department of Dermatology, Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York, New York
| | - Laura Levin
- Department of Dermatology, Weill Cornell Medical College, New York, New York
| | - Patricia L Myskowski
- Department of Dermatology, Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York, New York.,Department of Dermatology, Weill Cornell Medical College, New York, New York
| | - Eileen Flores
- Department of Dermatology, Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York, New York
| | - Michael A Marchetti
- Department of Dermatology, Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York, New York.,Department of Dermatology, Weill Cornell Medical College, New York, New York
| | - Anna Skripnik Lucas
- Department of Dermatology, Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York, New York
| | - Melissa Pulitzer
- Dermatopathology Service, Department of Pathology, Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York, New York
| | - Steven Horwitz
- Lymphoma Services, Department of Medicine, Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York, New York
| | - Tanya Trippett
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York, New York
| | - Alison Moskowitz
- Lymphoma Services, Department of Medicine, Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York, New York
| | - Christiane Querfeld
- Department of Dermatology, Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York, New York.,Department of Pathology, City of Hope Comprehensive Cancer Center, Duarte, California.,Division of Dermatology, City of Hope Comprehensive Cancer Center, Duarte, California
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Martinez-Escala ME, Kantor RW, Cices A, Zhou XA, Kaplan JB, Pro B, Choi J, Guitart J. CD8 + mycosis fungoides: A low-grade lymphoproliferative disorder. J Am Acad Dermatol 2017; 77:489-496. [DOI: 10.1016/j.jaad.2017.05.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Revised: 05/01/2017] [Accepted: 05/15/2017] [Indexed: 11/17/2022]
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Abstract
This article will focus on the cutaneous lymphoproliferative disorders associated with EBV, with an emphasis on the upcoming changes in the revised 4th Edition of the WHO classification of tumors of the hematopoietic system, many of which deal with cutaneous disorders derived from NK-cells or T-cells. Extranodal NK/T-cell lymphoma usually presents in the upper aerodigestive tract, but can involve the skin secondarily. EBV-associated T- and NK-cell lymphoproliferative disorders (LPD) in the pediatric age group include the systemic diseases, chronic active EBV infection (CAEBV) and systemic EBV+ T-cell lymphoma of childhood. Hydroa vacciniforme (HV)-like LPD is a primarily cutaneous form of CAEBV and encompasses the lesions previously referred to as HV and HV-like lymphoma (HVLL). All the T/NK-cell-EBV-associated diseases occur with higher frequency in Asians, and indigenous populations from Central and South America and Mexico. Among the B-cell EBV-associated LPD two major changes have been introduced in the WHO. The previously designated EBV-positive diffuse large B-cell lymphoma (EBV-DLBCL) of the elderly, has been changed to EBV-DLBCL with 'not otherwise specified' as a modifier (NOS). A new addition to the WHO system is the more recently identified EBV+ mucocutaneous ulcer, which involves skin and mucosal-associated sites.
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Affiliation(s)
- Alejandro A Gru
- Pathology & Dermatology, Hematopathology and Dermatopathology Sections, University of Virginia, Charlottesville, VA, USA.
| | - Elaine S Jaffe
- Hematopathology, National Cancer Institute (NCI), Bethesda, MD, USA
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Phenotypic Variation in Different Lesions of Mycosis Fungoides Biopsied Within a Short Period of Time From the Same Patient. Am J Dermatopathol 2016; 38:541-5. [DOI: 10.1097/dad.0000000000000493] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Abstract
Conventional presentations of mycosis fungoides may be diagnostically challenging, particularly in light of the controversial boundaries defining the disease. Variant presentations of this cutaneous T-cell lymphoma add a further layer of complexity, requiring a sophisticated and informed perspective when evaluating lymphoid infiltrates in the skin. Herein we discuss well-defined (WHO-EORTC) variants pagetoid reticulosis, granulomatous slack skin and folliculotropic mycosis fungoides as well as less well-defined morphologic/architectural variants, and divergent immunohistochemical presentations of this typically indolent T-cell lymphoproliferative disease.
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