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Carotid body paraganglioma (chemodectoma) is a rare, mostly benign tumor arising from the chemoreceptor cells of the carotid body located at the bifurcation of the common carotid artery.Epidemiology EtiologyGenetic mutations: Mutations in genes encoding subunits of the succinate dehydrogenase complex (SDH), which is involved in the mitochondrial respiratory chain and cellular metabolism, play a leading […]

Varicose veins (varicosis) is a condition where the vein wall becomes thinner, and the veins become unevenly expanded. Symptoms, Causes, Diagnosis, Treatment.

Aortic dissection (dissection) is a condition in which the inner wall of the aorta is torn, with blood flowing between its layers and creating a false channel. Causes, symptoms, treatment.

Thermal lesions of the nose - exposure to low or high temperatures with damage to the skin and underlying tissues. Classification, diagnosis and treatment of burns and frostbite of the nose.

Carotid atherosclerosis is a chronic vascular lesion in the neck with risk of stroke. Etiology, pathophysiology, epidemiology, diagnosis, methods of treatment.

Reversible pulpitis is a clinical diagnosis based on objective and subjective signs of the presence of mild inflammation in the pulp tissue. Learn about the etiology, diagnosis, and treatment of the disease.

Aortic valve stenosis is a heart condition in which the aortic valve is narrowed and prevents the normal flow of blood from the left ventricle. Learn about symptoms, diagnosis, and treatment.

Ear tumors in humans: learn about benign and malignant ear tumors, their causes, clinical manifestations and modern methods of diagnosis and treatment. Detailed description for students and professionals.

Foreign bodies of the nose, paranasal sinuses and pharynx: classification, etiology, pathogenesis, clinical manifestations, diagnostic methods and principles of treatment.

Rhinitis is an inflammation of the mucous membrane of the nasal cavity. Classification, causes, stages, symptoms, diagnostic methods and treatment.