Precursor B‐cell lymphoblastic lymphoma presenting as concurrent enlarging masses on the scalp and postauricular region in a 13‐year‐old boy

• Published in: The Kaohsiung journal of medical sciences Vol. 40; no. 5; pp. 509 - 510
• Main Authors: Wang, Wei‐Yao, Yang, Sheau‐Fang, Cheng, Yu‐Wen, Chen, Yang‐Yi
• Format: Journal Article
• Language: English
• Published: BP, Asia Wiley Publishing Asia Pty Ltd 01.05.2024; John Wiley & Sons, Inc; Wiley
• Subjects: Adolescent; B cells; Biopsy; Chemotherapy; Conflicts of interest; Correspondence; Diagnosis; Humans; Lymphatic system; Lymphoma; Lymphomas; Male; Medical prognosis; Pediatrics; Precursor B-Cell Lymphoblastic Leukemia-Lymphoma - diagnosis; Precursor B-Cell Lymphoblastic Leukemia-Lymphoma - pathology; Scalp - pathology; Ultrasonic imaging; Vincristine
• ISSN: 1607-551X; 2410-8650; 2410-8650
• DOI: 10.1002/kjm2.12811

Physical examination showed a dome-shaped, firm, non-tender, erythematous mass measuring 5 cm in diameter on the right parietal scalp (Figure 1A,B), and enlarged lymph nodes measuring 1.5 cm in the right postauricular region (Figure 1C). PB-LBL is a rare subtype of non-Hodgkin lymphoma (NHL) that arises from immature B lymphocytes, constituting only 1% of all hematological malignancies in children. 1–4 It primarily affects children and adolescents, with a slight male preponderance. 2–4 PB-LBL often manifests in localized extramedullary sites, including lymph nodes, bones, skin, and mediastinum. 1–3 In pB-LBL, the occurrence of skin or subcutaneous involvement in the head and neck region, along with lymph node participation, is uncommon, observed in ~4.7% of cases. 1 It typically presents as multiple red-to-purple nodules/masses. 1,4 CONFLICT OF INTEREST STATEMENT All authors declare no conflict of interest.