Purpose: T-Lymphoblastic lymphoma (T-LBL) is a rare malignant tumor originated from precursor T-lymphocytes that differentiate to T lymphocytes. We report a rare case of T-LBL presenting with conjunctival mass as the first sign. Observations: A 61-year-old man presented with a right salmon colored conjunctival mass. https://www.rxkaitori.com/product-category/ip-66-led-batten/