A bifid rib is a congenital abnormality of the rib cage and associated muscles and nerves which occurs in about 1.2% of humans. Bifid ribs occur in up to 8.4% of Samoans. [1] The sternal end of the rib is cleaved into two. It is usually unilateral. [2] Bifid ribs are usually asymptomatic, and are often discovered incidentally by chest X-ray.

Jan 9, 2025 · A bifid or bifurcated rib is a congenital skeletal abnormality where the affected rib has a forked sternal end. They are thought to occur in ~0.2% of the population and there may be a female and right-sided predilection 2. It typically involves the 3rd/4th rib (incidence: 3rd/4th > 5th > 6th > 2nd) ref. Epidemiology Associations

BIFID RIB. Also known as Luschka’s forked rib , a bifid rib is the most common variation, characterized by a division in its anterior portion, in its bony and cartilaginous aspects, typically affecting the fourth rib (1,2). It is also associated with Gorlin syndrome . Figure 6.

The present study involved a detailed investigation of 3 cases of bifid rib, focusing on anatomical features, and classified them into 2 types. The bifid ribs were in the right fourth rib of all 3 male cadavers. The upper intercostal spaces of the ...

Bifid rib is a rare congenital abnormality of anterior chest wall. It manifests as a chest “lump.” Such lesions are detected during a routine physical examination or chest X-ray which is often performed for other reasons.

Chest X-ray appearances of anatomical variants. Rib variants occasionally cause confusion when interpreting a chest X-ray. Ribs may be missing, hypoplastic, fused or bifid.

An isolated bifid rib may require no further intervention. Reconstruction 3D-CT can demonstrate complicated thoracic abnormalities in patients with atypical appearance of the rib on plain radiographs.

Bifid or forked ribs are uncommon. They are thought to occur in ~0.2% of the population. Usually asymptomatic, they may cause musculoskeletal pain or intercostal nerve entrapment. If of the first rib, then they may be an uncommon cause of thoracic outlet syndrome.

Bifid or bifurcated ribs are a rare anatomical anomaly that accounts for approximately 28% of known rib abnormalities. Bifurcation always occurs at the sternal end of the rib and its two extremities are joined to a bifid costal cartilage.

A bifid rib (also bifurcated rib) is a congenital neuroskeletal abnormality of the anterior chest wall, which occurs in about 1.2% of humans. The sternal end of the rib is cleaved into two. It is usually unilateral.