30 December 2024
: Case report 
B-Acute Lymphoblastic Leukemia/Lymphoblastic Lymphoma Mimicking Fibrosing Mediastinitis: A Case Report and Diagnostic Insight
Unknown etiology, Challenging differential diagnosis, Unusual or unexpected effect of treatment
Aya Kitamura ABCDEF 1, Shigehisa Yanagi ABCDEFG 1*, Kotaro Shide
ABCDEF 2, Yuichiro Sato ABCDE 3, Ayako Kamiunten BDE 2, Yasuhiro Yamanari BE 1, Akiko Kitamura E 1, Makoto Sumiyoshi E 1, Yasuharu Oda E 1, Hironobu Tsubouchi E 1, Kazuya Shimoda ADEF 2, Taiga Miyazaki ADEF 1
DOI: 10.12659/AJCR.945804
Am J Case Rep 2024; 25:e945804
Figure 8. Thoracic biopsy findings of the mediastinal mass-like lesion. Relatively large cell clusters were present nearby the fibrotic lesion (A, B). These cells were positive for CD34 (C, D), CD7 (E, F), and terminal deoxynucleotidyl transferase (TdT) (G, H, arrowheads). CD3 (I, J) and CD20 (K, L) were positive in small-sized lymphocytes with no atypia. The images in (B, D, F, H, J, L) are ×4 magnifications of the indicated regions in (A, C, E, G, I, K). A, C, E, G, I, K: 100×, B, D, F, H, J, L: 400× magnification. A, B: Hematoxylin and eosin (H&E) stain.