Notching of the ribs

Notching of the ribs (or rib notching) is a radiologic sign where the surface of the rib is deformed.wikipedia
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Coarctation of the aorta

aortic coarctationcoarctation of aortacoarctation
Inferior rib notching can be associated with aortic coarctation (as a result of dilatation of intercostal arteries ), superior vena caval obstruction, arteriovenous fistula, or following a Blalock Taussig shunt. Arterial: aortic coarctation, aortic thrombosis, pulmonary-oligemia/AV malformation, Blalock Taussig shunt, Tetralogy of fallot (TOF), absent pulmonary artery and pulmonary stenosis.
3) Postductal coarctation: The narrowing is distal to the insertion of the ductus arteriosus. Even with an open ductus arteriosus, blood flow to the lower body can be impaired. This type is most common in adults. It is associated with notching of the ribs (because of collateral circulation), hypertension in the upper extremities, and weak pulses in the lower extremities. Postductal coarctation is most likely the result of the extension of a muscular artery (ductus arteriosus) into an elastic artery (aorta) during fetal life, where the contraction and fibrosis of the ductus arteriosus upon birth subsequently narrows the aortic lumen.

Radiologic sign

signradiological signradiologic
Notching of the ribs (or rib notching) is a radiologic sign where the surface of the rib is deformed.

Intercostal arteries

posterior intercostal arteryanterior intercostal branchesmusculophrenic
Inferior rib notching can be associated with aortic coarctation (as a result of dilatation of intercostal arteries ), superior vena caval obstruction, arteriovenous fistula, or following a Blalock Taussig shunt.

Superior vena cava syndrome

Superior vena cava obstructionsuperior vena caval obstruction
Inferior rib notching can be associated with aortic coarctation (as a result of dilatation of intercostal arteries ), superior vena caval obstruction, arteriovenous fistula, or following a Blalock Taussig shunt.

Arteriovenous fistula

arteriovenous shuntA-V fistulaarterio venous (AV) shunting
Inferior rib notching can be associated with aortic coarctation (as a result of dilatation of intercostal arteries ), superior vena caval obstruction, arteriovenous fistula, or following a Blalock Taussig shunt.

Blalock–Taussig shunt

Blalock-Thomas-Taussig ShuntBlalock-Taussig ShuntBlalock–Thomas–Taussig shunt
Inferior rib notching can be associated with aortic coarctation (as a result of dilatation of intercostal arteries ), superior vena caval obstruction, arteriovenous fistula, or following a Blalock Taussig shunt. Arterial: aortic coarctation, aortic thrombosis, pulmonary-oligemia/AV malformation, Blalock Taussig shunt, Tetralogy of fallot (TOF), absent pulmonary artery and pulmonary stenosis.

Tetralogy of Fallot

Fallot's TetralogyFallot’s Tetralogytetralogy/pentalogy of Fallot
Arterial: aortic coarctation, aortic thrombosis, pulmonary-oligemia/AV malformation, Blalock Taussig shunt, Tetralogy of fallot (TOF), absent pulmonary artery and pulmonary stenosis.

Poliomyelitis

polioinfantile paralysisparalytic polio
Neurogenic: intercostal neuroma, Neurofibromatosis type 1, poliomyelitis. Potential causes of superior rib notching include: poliomyelitis, osteogenesis imperfecta, neurofibromatosis, Marfan's syndrome, collagen vascular disease, and hyperparathyroidism.

Hyperparathyroidism

Foot NoteH'''yperparathyroidismHyperparathyroidism, unspec.
Osseous: hyperparathyroidism, thalassemia, Melnick–Needles syndrome. Potential causes of superior rib notching include: poliomyelitis, osteogenesis imperfecta, neurofibromatosis, Marfan's syndrome, collagen vascular disease, and hyperparathyroidism.

Thalassemia

thalassaemiathalassaemiasthalassaemia major
Osseous: hyperparathyroidism, thalassemia, Melnick–Needles syndrome.

Melnick–Needles syndrome

Osseous: hyperparathyroidism, thalassemia, Melnick–Needles syndrome.

Osteogenesis imperfecta

brittle bone diseasebrittle bones Osteogenesis imperfecta, type I
Potential causes of superior rib notching include: poliomyelitis, osteogenesis imperfecta, neurofibromatosis, Marfan's syndrome, collagen vascular disease, and hyperparathyroidism.

Neurofibromatosis

neurofibromatosis type 1acoustic neurofibromatosisneurofibromatoses
Potential causes of superior rib notching include: poliomyelitis, osteogenesis imperfecta, neurofibromatosis, Marfan's syndrome, collagen vascular disease, and hyperparathyroidism.

Marfan syndrome

MarfanMarfan's syndromeMarfanoid
Potential causes of superior rib notching include: poliomyelitis, osteogenesis imperfecta, neurofibromatosis, Marfan's syndrome, collagen vascular disease, and hyperparathyroidism.

Connective tissue disease

connective tissue disorderconnective tissue disorderscollagen vascular disease
Potential causes of superior rib notching include: poliomyelitis, osteogenesis imperfecta, neurofibromatosis, Marfan's syndrome, collagen vascular disease, and hyperparathyroidism.