Manduwa Saka, Masakazu Fujimoto, Kai Mizoguchi, Marina Tsujimura, Miho Saeki, Masahiro Hirata, Shinsuke Shibuya, Kentaro Odani, Takaki Sakurai, Yoshiaki Yuba, Koki Moriyoshi, Naoki Nakajima, Shinji Sumiyoshi, Fumihiko Kono, Kazuo Ono, Tomoyuki Shirase, Chihiro Watanabe, Akihiko Yoshizawa, Hironori Haga
Intravascular large B-cell lymphoma (IVLBCL) is a rare type of aggressive extranodal large B-cell lymphoma characterized by the selective growth of lymphoma cells within the lumina of blood vessels, particularly capillaries. IVLBCL lacks mass formation, and its diagnosis can be challenging. We analyzed the utility of insulin-like growth factor II mRNA-binding protein 3 (IMP3) immunohistochemistry for IVLBCL diagnosis in various organs. Double staining with paired box 5 (PAX5) was performed for validation. Overall, 152 pathological specimens (111 positive and 41 negative for IVLBCL) obtained from 88 patients with a diagnosis of IVLBCL were stained for IMP3 and IMP3/PAX5...
March 18, 2024: American Journal of Surgical Pathology