Gibbus
![](https://pacs.de/sites/default/files/pictures/thumbs/upload.wikimedia.org/9/4/7/9/6/Gibbus_bei_ventral_eingebrochenem_unteren_BWK_88W_-_CR_-_001_thumb.jpg)
Gibbus bei
ventral eingebrochenem unteren BWK. Anamnese unbekannt. In der p.a.-Aufnahme fällt der verminderte kraniokaudale Durchmesser des Thorax auf. In der Seitaufnahme zeigt sich dafür der sagittale Durchmesser erheblich erweitert.
![](https://pacs.de/sites/default/files/pictures/thumbs/data.pacs.de/9/4/8/9/6/morquiostchdwarfoarshapedribscxrirregularvertebralborderslspinepln4yo_thumb.jpg)
Preschooler
with short stature. AP radiograph of the thoracolumbar spine (left) shows ribs that are widened but then taper at their vertebral insertions (oar-shaped ribs). Lateral radiograph of the thoracolumbar spine (right) shows the vertebral bodies to be hypoplastic and oval in appearance and to be beaked anteriorly, resulting in a gibbus deformity at the thoracolumbar junction. Overall there is diffuse platyspondyly of the spine.The diagnosis was mucopolysaccharidoses type IV – Morquio syndrome.
A gibbus deformity is a short-segment structural thoracolumbar kyphosis resulting in sharp angulation.
Pathology
Etiology
There are a number of causes which can be divided into congenital and acquired.
Congenital
- achondroplasia
- cretinism (congenital hypothyroidism)
- Apert syndrome
- Coffin-Lowry syndrome
- mucopolysaccharidoses
Acquired
- compression fracture / vertebra plana
- osteomyelitis/diskitis
- pyogenic spinal osteomyelitis
- tuberculosis (Pott disease)
- Scheuermann disease
History and etymology
Gibbus is Latin for "hump/hunch" and is related to the descriptor 'gibbous' in relation to phases of the moon.
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