Bilateral Intraocular Involvement of Recurrent Mantle Cell Lymphoma with Remission of Pseudo-Uveitis and Secondary Glaucoma After Switching Treatment to Ibrutinib: A Case Report.

Purpose: We describe a case of bilateral pseudo-uveitis and secondary glaucoma associated with recurrent mantle cell lymphoma (MCL) that was successfully treated with ibrutinib.

Methods: Retrospective case report.

Results: A 75-year-old man presented with uveitis masquerade syndrome while undergoing treatment for MCL with rituximab-bendamustine. Initial ophthalmologic examination revealed pseudohypopyon, iris thickening, and considerable vitreous opacity of both eyes. Evaluation via anterior segment optical coherence tomography revealed iris thickening in both eyes. His best-corrected visual acuities were reduced to 20/28 and 20/2000 on the right eye (OD) and left eye (OS), respectively, and his intraocular pressure (IOP) was elevated at 40 (OD) and 52 (OS) mmHg. The patient had findings suggestive of recurrent MCL, such as skin lesions, hyponatremia, elevated blood lactase dehydrogenase, and the results of the skin biopsy were consistent with the pathological diagnosis of MCL in the bone marrow biopsy that had already been performed. He was diagnosed with MCL recurrence and treated by switching to ibrutinib, a Bruton's tyrosine kinase inhibitor. After 1 week of treatment, all anterior ocular and vitreous lesions disappeared. Moreover, the skin lesions also disappeared, and the blood sample findings improved. On day 11 of treatment, BCVA improved to 20/20 in both eyes and IOP decreased to 8 (OD) and 11 (OS) mmHg. During the study course, CD5 and CD20 positive cells were identified in the anterior chamber of the eyes via flow cytometry, which was consistent with the pathological findings of biopsies.

Conclusion: Ibrutinib may improve recurrent MCL intraocular lesions.