Cardiovascular Pathology

Carotid artery stenosis is the narrowing of the neck's main arteries due to plaque buildup, significantly increasing stroke risk. Learn about the causes, symptoms, and treatments.

Carotid artery stenosis is a serious vascular condition caused by plaque buildup that can lead to stroke. Learn about the symptoms, diagnosis, and surgical treatments like endarterectomy.

Persistent high blood pressure, or hypertension, is a leading cause of severe medical complications including stroke, heart attack, and kidney failure. This guide explains how hypertension affects the brain, heart, eyes, and kidneys, and explores the importance of early management.

Learn about the mechanisms of hypertension, how high blood pressure leads to an enlarged heart and atherosclerosis, and strategies for maintaining cardiovascular health.

Learn about Arteriovenous Fistula (AVF), including its causes, hemodynamics, and treatment. This guide covers congenital and dialysis-related fistulas and management.

Explore the microscopic world of the arterial wall and the development of calcified atherosclerotic plaques. This guide explains the histology and pathology of vascular mineralization.

Phlegmasia cerulea dolens is a rare and critical medical emergency resulting from a massive obstruction of the venous drainage system in an extremity, typically...

The image presented demonstrates a classic clinical sign known as pitting edema, a condition characterized by observable swelling in body tissues due to fluid accumulation. This visual guide highlights the standard diagnostic physical examination technique used by healthcare professionals to distinguish this specific type of fluid retention from other forms of swelling. By applying direct pressure to the affected limb, a clinician can assess the severity and nature of the edema based on the tissue's response.

Deep Vein Thrombosis (DVT) is a serious vascular condition characterized by the formation of a blood clot (thrombus) within a deep vein, predominantly occurring in the lower extremities such as the calf or thigh. The clinical presentation of this condition is often visually distinct, manifesting as significant asymmetry between the limbs due to fluid retention and inflammation. The image provided illustrates a classic presentation of a right leg DVT, highlighting the contrast in size and skin tone compared to the unaffected left leg, serving as a critical example of why early visual recognition is vital for preventing severe complications.

This illustrated guide analyzes the anatomical differences between a healthy vein and one compromised by a thrombus, highlighting the critical role of venous valves in circulation. By examining the mechanics of blood flow obstruction, we explore the physiological causes and dangers of venous thromboembolism as depicted in the comparative diagram.