Primary Cutaneous B-Cell Lymphomas with Large Cell Morphology: A Practical Review

Author:

Ronchi Andrea1,Vitiello Paola2,D’Abbronzo Giuseppe1,Caccavale Stefano2,Argenziano Giuseppe2ORCID,Sica Antonello3ORCID,Alfano Roberto4,Savarese Giovanni5,Berretta Massimiliano6ORCID,Cozzolino Immacolata1,Franco Renato1

Affiliation:

1. Pathology Unit, Department of Mental Health and Physic and Preventive Medicine, University of Campania Luigi Vanvitelli, 80138 Naples, Italy

2. Dermatology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania Luigi Vanvitelli, 80131 Naples, Italy

3. Oncology Unit, Department of Precision Medicine, University of Campania Luigi Vanvitelli, 80131 Naples, Italy

4. Department of Anesthesiology, Surgery and Emergency, University of Campania Luigi Vanvitelli, 80138 Naples, Italy

5. AMES, Centro Polidiagnostico Strumentale srl, 80013 Naples, Italy

6. Department of Clinical and Experimental Medicine, University of Messina, 98122 Messina, Italy

Abstract

Most primary cutaneous lymphomas consist of T-cell lymphomas or small cell lymphomas; however, the skin may also be affected by lymphomas with large cell morphology, as a primary or secondary localization. A minority of cases consist of primary cutaneous B-cell lymphomas (PCBCLs). PCBCLs are a heterogeneous group of rare neoplasms with an overlapping morphological and immunohistochemical picture of the different subtypes. Nevertheless, differential diagnosis in the setting of this group of neoplasms is mandatory to identify the correct therapy and prognosis, but it may be challenging since, due to the rarity of these neoplasms, they may not always be familiar to pathologists. Indeed, immunohistochemistry may not be enough to distinguish the different histotypes, which overlap in immunohistochemical features. Furthermore, the ever-increasing knowledge of the molecular features of systemic B-cell lymphomas, such as gene rearrangements with clinical significance, has led in recent years to further investigation into the molecular landscape of PCBCLs with large cell morphology. This work aimed to provide a practical diagnostic guide for pathologists dealing with primary cutaneous large B-cell lymphomas.

Publisher

MDPI AG

Subject

Inorganic Chemistry,Organic Chemistry,Physical and Theoretical Chemistry,Computer Science Applications,Spectroscopy,Molecular Biology,General Medicine,Catalysis

Reference33 articles.

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