Sep 12, 2021 · ≤11 ribs is associated with a number of congenital abnormalities and skeletal dysplasias, including: Down syndrome (trisomy 21) campomelic dysplasia; kyphomelic dysplasias; asphyxiating thoracic dysplasia (Jeune syndrome) short rib polydactyly syndromes; trisomy 18; chromosome 1q21.1 deletion syndrome atelosteogenesis; spondylocostal dysostosis

The case illustrates the contrast-enhanced MDCT features of the pathology-proved fibrous dysplasia of the rib. Fibrous dysplasia can be superimposed by aneurysmal bone cyst 1.

Nov 5, 2024 · Owing to their features, the first, eleventh and twelfth ribs are considered atypical ribs. Some authors also include the second and tenth ribs as atypical. Atypical features are summarized below: first rib. strongest, broadest and most curved. tubercle at the inner border marks the attachment of scalenus anterior muscle 2

Apr 3, 2025 · The 4th-10th ribs are the most commonly fractured 1. Fractures of the 1st-3rd ribs are associated with high-energy trauma 3 . When the rib is fractured twice, the term floating rib is used to describe the free fracture fragment, and when three or more contiguous floating ribs are present this is called a flail chest .

Oct 12, 2020 · The 12 th rib has a single facet on its head for articulation with the T12 vertebra. It has a short neck and no tubercle. It also lacks a costal groove and angle. internal surface of this word about slopes slightly upwards. The pointed anterior end of the 12 th rib is covered with costal cartilage. Its length is highly variable.

It has been estimated that 5-8% normal people have only 11 pairs of ribs. When an underlying condition is present, the commonest found is trisomy 21. In those with trisomy 21, one-third of patients are missing their twelfth ribs, other causes of 11 rib pairs are cleidocranial dysplasia and campomelic dysplasia 1.

Sep 6, 2024 · Ribs are highly vascular and trabecular with a thin outer layer of compact bone. The 1 st, 11 th and 12 th ribs are considered atypical ribs due to their anatomical features. The remaining ribs are typical. Ribs can also be divided into true, false and floating ribs:

Sep 24, 2024 · The intercostal spaces, also known as interspaces, are the spaces between the ribs. There are 11 spaces on each side and they are numbered according to the superior rib.

The case illustrates the contrast-enhanced MDCT features of the pathology-proved fibrous dysplasia of the rib. Fibrous dysplasia can be superimposed by aneurysmal bone cyst 1.

Feb 26, 2025 · Pelvic digit, also known as a pelvic rib, pelvic finger, or 11 th finger, is a rare congenital abnormality where there is a development of bony tissue in the soft tissue pelvis and less commonly in the abdomen.