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Σάββατο 29 Δεκεμβρίου 2018

Cutaneous B-Cell Lymphoblastic Lymphoma

Abstract: B-cell lymphoblastic lymphoma (B-LBL) is a malignant neoplasm of immature B cells that accounts for only 10% of all cases of lymphoblastic lymphoma. Most commonly, B-LBL presents as bony lesions, but in rare cases, the disease manifests cutaneously. We present a case of simultaneous cutaneous and systemic presentation of B-LBL in an otherwise healthy 28-year-old man in which the lymphoblastic infiltrate stained positive for CD79a, Tdt, CD10, and CD20. A diagnosis of cutaneous B-LBL was made, and systemic work-up revealed widespread involvement of the skin, bone, and lymph nodes. Review of all currently described cases of cutaneous B-LBL with or without systemic involvement revealed that the most frequently positive tumor markers were CD79a (92.3%), Tdt (90.6%), and CD10 (83.3%). Systemic involvement of B-LBL was found in nearly half of all cases with cutaneous presentation. Correspondence: Dilru Amarasekera, MD, Sidney Kimmel Medical College, Thomas Jefferson University, 1025 Walnut Street, Philadelphia, PA 19107 (e-mail: dca008@jefferson.edu). The authors declare no conflicts of interest. Copyright © 2018 Wolters Kluwer Health, Inc. All rights reserved.

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