DOI: https://doi.org/10.36347/sasjs.2025.v11i10.005

Pages: 971-977

Mucosa-associated lymphoid tissue (MALT) lymphoma is a rare subtype of non-Hodgkin lymphoma that originates in the mucosa-associated lymphoid tissue. The most commonly affected organ is the stomach, although it can involve nearly any organ throughout the body. When a suspicious lesion is present, an excisional biopsy may be performed for diagnosis. For staging, blood tests and imaging studies such as abdominal and chest CT scans are typically conducted. A bone marrow biopsy may also be performed if necessary. This patient initially presented with a palpable mass on the left upper eyelid. An extensive excisional biopsy was performed under general anesthesia. It revealed MALT lymphoma upon histopathological examination. This case highlights a diagnosis of MALT lymphoma in the subcutaneous tissue of the left upper eyelid. Lymphoma of the eyelid is an area that has received limited research attention, with few large-scale studies or recent reviews available in the literature.