Type V anatomic variant of the suprascapular notch

Case contributed by Dr Dalia Ibrahim

Presentation

Trauma. Incidental finding on CT shoulder.

Patient Data

Age: 25 years old
Gender: Male

Type V suprascapular notch (a notch with incomplete bony foramen), mimicking fracture

Type V suprascapular notch (a notch with incomplete bony foramen) (arrows)

Case Discussion

Anatomic variations in the shape of suprascapular notch are divided into 5 types:

Type I (no notch): A wide depression of the superior border of the scapula.

Type II: A wide blunted V-shape notch.

Type III: A slightly deeper notch with almost parallel lateral margins "U-shape" notch

Type IV: A small notch  ‘V’shaped. 

Type V: The medial part of the ligament is partially ossified forming a notch with a small diameter along the superior border of the scapula.

Type VI: The ligament was completely ossified forming a bony foramen located inferomedial to the base of the coracoid process.

Suprascapular nerve entrapment may be due to the variable morphology of the suprascapular notch.

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Case information

rID: 28872
Case created: 18th Apr 2014
Last edited: 14th Mar 2016
Inclusion in quiz mode: Included

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