01 April 2026
: Case report 
A 64-Year-Old Man Presenting With Diplopia and Right Orbital Swelling Due to Mucosa-Associated Lymphoid Tissue Lymphoma
Challenging differential diagnosis, Rare disease
Lubna M. Altamimi ABDEF 1, Farjah H. Algahtani
ABDEF 1,2*, Mohammed Ghannam Alharbi ABD 1,2,3, Fadi S. Alakeel ABE 1,4, Beshayer A. Alhentti ABD 1,4
DOI: 10.12659/AJCR.951426
Am J Case Rep 2026; 27:e951426
Figure 1 Progressive right orbital swelling and ptosis from 2017 to post-treatment follow-up. (A–H) The right orbital swelling and eyelid drooping progressively worsened from 2017 to the post-treatment follow-up. The progression shows subtle asymmetry that began in 2017 (A), the eyelid drooping and fullness in the superior sulcus worsened between 2018–2020 (B–D), followed by further enlargement and more pronounced ptosis between 2021–2023 (E–G), and marked swelling in January 2024 (H). (I) Five months post-surgery and radiotherapy, the patient shows significant improvement, with reduced swelling and minimal eyelid asymmetry.