Bifid rib
Bifurcated rib | |
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![]() Bifid rib at the right side seen on chest radiograph. The fourth rib splits in two towards the sternal end.
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Classification and external resources | |
Specialty | Lua error in Module:Wikidata at line 446: attempt to index field 'wikibase' (a nil value). |
ICD-10 | Q76.7 |
ICD-9-CM | 756.3 |
Patient UK | Bifid rib |
A bifid rib (bifurcated rib or sternum bifidum) 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.
Bifid ribs are usually asymptomatic, and are often discovered incidentally by chest X-ray. Effects of this neuroskeletal anomaly can include respiratory difficulties, neurological difficulties, limitations, and limited energy from the stress of needing to compensate for the neurophysiological difficulties. Another association is with odontogenic keratocysts (OKC [aka keratocystic odontogenic tumor (WHO terminology)]) of the jaw which may behave aggressively and have a high propensity to recur when treated with simple enucleation and curettage. When seen together, the patient is likely to have Nevoid Basal Cell Carcinoma Syndrome (aka Gorlin-Goltz syndrome) and should be evaluated with this in mind.
See also
References
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