Histopathological Changes in Metabolic Disorders: An Overview

Abstract

Metabolic disorders are a major group of chronic diseases characterized by disturbances in carbohydrate, lipid, and protein metabolism, leading to long-term organ damage and functional impairment. From a histopathological perspective, these disorders produce distinct structural and cellular alterations in multiple tissues, reflecting underlying metabolic and inflammatory abnormalities. Common metabolic conditions such as diabetes mellitus, obesity, dyslipidemia, and metabolic syndrome are associated with characteristic microscopic changes in organs including the liver, pancreas, adipose tissue, kidneys, and blood vessels. Histopathological features frequently observed in metabolic disorders include fatty infiltration, cellular hypertrophy and hyperplasia, inflammation, fibrosis, and vascular changes. In diabetes mellitus, alterations such as pancreatic islet degeneration, glomerulosclerosis, and microvascular damage are prominent, while obesity is associated with adipocyte enlargement and chronic low-grade inflammation. an overview of the key histopathological changes observed in metabolic disorders and highlights their relevance in understanding disease mechanisms, progression, and potential therapeutic targets.