Full text loading...
- ISSN: 1566-5240
- E-ISSN: 1875-5666
-
Large B-cell Lymphoma with IRF4 Rearrangement in the Nasolacrimal Duct: A Clinicopathological Study of One Case and Literature Review
- Source: Current Molecular Medicine, Volume 25, Issue 4, Apr 2025, p. 506 - 510
-
- 23 Aug 2023
- 12 Dec 2023
- 25 Jan 2024
Abstract
Background
Large B-cell lymphoma (LBCL) with interferon regulatory factor 4 (IRF4) rearrangement (LBCL-IRF4) is a rare subtype of LBCL, with a high prevalence in Waldeyer's ring as well as the neck, head and gastrointestinal lymph nodes.
Materials and Methods
A patient with 2-month clinical symptoms of nasal obstruction and facial swelling was reported in this short review. A nasal endoscopy examination revealed a neoplasm in the inferior nasal meatus. Both CT and enhanced MRI showed that a soft tissue occupied the nasolacrimal duct, with bone destruction, and extended into the left nasal cavity and left lacrimal gland area. Then, a biopsy of the neoplasm in the inferior nasal meatus was performed.
Results
HE staining results showed that neoplastic cells presented diffuse growth patterns, abundant cytoplasm, vacuole shape, lightly stained nuclei, and irregular nuclear membrane. Immunohistochemistry staining results revealed MUM1(+), Bcl-6(+), CD20(+), CD79α(+), and CD10(+). FISH analyses detected positive IRF4 rearrangement. LBCL-IRF4 was diagnosed in the patient. The patient received treatment with four cycles of R‐CHOP and two times of rituximab, followed up for 2 years, and finally got complete remission.
Conclusion
For the first time, we summarize the imaging and pathological features, drug treatment, and curative effect of LBCL-IRF4 in the nasolacrimal duct.
©
2025 Bentham Science Publishers