Lymphomatoid granulomatosis (LG) is a rare disease that affects the lungs, skin, and central nervous system, amongst other organs. It is a type of lymphoma that presents as a proliferation of abnormal white blood cells that accumulate in the tissue of different organs in the body. This disease has a poor prognosis, and patients often require aggressive treatment. Synonyms for LG include malignant angioendotheliomatosis, angiocentric immunoproliferative lesions, and angiocentric T-cell lymphoma. These terms are used to describe various aspects of the disease, including its histological appearance and location. It is essential to use these synonyms in medical literature, as it allows researchers to access all relevant studies to the disease they are researching.