Tag: systemic lupus erythematosus

Systemic lupus erythematosus (SLE), commonly known as lupus, is a chronic autoimmune disease that can affect multiple organs and systems, presenting a wide range of symptoms. This diagram highlights the diverse manifestations of SLE, from systemic effects like fever to specific organ involvement such as pleura and pericardium inflammation. Gaining a thorough understanding of these symptoms is essential for recognizing and managing this complex condition effectively.

The immune system, designed to protect the body, can sometimes overreact, leading to hypersensitivity reactions that cause tissue damage or disease. This diagram outlines the four types of hypersensitivity—Type I, II, III, and IV—each involving distinct mechanisms and immune components, primarily mediated by B cells or T cells. Exploring these reactions provides a deeper understanding of how the immune system can both defend and, in some cases, harm the body under specific conditions.