A case of subclavius posticus muscle mimicking a mass on mammogram

Kolpattil, S.; Harland, R.; Temperley, David

doi:10.1016/j.crad.2009.03.002

Cited by 7 publications

(2 citation statements)

References 4 publications

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“…Cogar et al (2015) described in a 49-year-old male athlete, compression of the suprascapular nerve by the subclavius posticus muscle, whose symptoms improved rapidly after surgical excision. Kolpattil et al (2009) reported a case in which the subclavius posticus muscle appeared as a mammographic density, and could be confused with a pathological mammary process. Akita et al (2000), also proposed it as a cause of the Paget-von Schrotter syndrome, which consists of the subclavian or axillary vein thrombosis, either spontaneous or effort-related.…”

Section: Discussionmentioning

confidence: 99%

Subclavius Posticus Muscle with Anomalous Posterior Insertion: Case Report

et al. 2018

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SUMMARY:During routine anatomical dissection of the left supraclavicular and infraclavicular regions of a male cadaver, a supernumerary muscle was observed, which, by its position and insertions, consistent with the subclavius posticus muscle (posterior subclavius muscle). It had its anterior insertion by a thin tendon in the cranial surface of the first costal cartilage next to the subclavius muscle's insertion, and ran dorso-laterally crossing over the brachial plexus and subclavian vessels to end on the posterior surface of the serratus anterior muscle's fascia near to the superior margin of the scapula, without taking insertion on it, which differentiates it from the muscles described in the bibliography. This aberrant muscle has clinical implication since it has been described as a cause of thoracic outlet syndrome and it may appear in diagnostic imaging techniques simulating different pathological processes.

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Section: Discussionmentioning

confidence: 99%

Subclavius Posticus Muscle with Anomalous Posterior Insertion: Case Report

et al. 2018

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“…presence of a normal subclavius muscle are the classical MRI features of subclavius posticus muscle [8] .…”

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confidence: 99%

A Case Report of Bilateral Subclavius Posticus Muscle

Gupta¹,

Prakash²,

Ojha³

2013

jemds

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During routine dissection of an adult male cadaver, in the neck region an aberrant muscle subclavius posticus was found on both sides. The muscle had a tendinous attachment anteriorly on the 1 st costal cartilage along with the subclavius. Long thin belly of this aberrant muscle was superficial to brachial plexus and subclavian artery and was attached posteriorly on to the scapula. Clinical significance of this muscle has been recognized as a possible cause of thoracic outlet syndrome or it may mimic as a mass on radiological investigation in this region. Radiologists and breast surgeons should be aware of this anomaly in scapular region.

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The subclavius posticus muscle: an unusual cause of thoracic outlet syndrome

et al. 2013

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We present the case of a 30-year-old female, complaining of thoracic outlet compression symptoms caused by a supernumerary muscle, the subclavius posticus, accompanied by a caudally inserted middle scalenus muscle on the second rib. This rare anatomic variant was clearly shown on CT angiography and MRI images and surgical treatment was successful. As first described by Rosenmuller in 1800, subclavius posticus is a supernumerary muscle originating from the cranial surface of the sternal end of the first rib, running laterodorsally beneath the clavicle, and inserting into the superior border of the scapula. Its role in thoracic outlet syndrome has been seldom demonstrated in living patients nor described in imaging, although it is theoretically easily recognizable on modern imaging modalities. It should be taken into account during workout of patients with thoracic outlet syndrome, since it can be potentially treated.

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A case of subclavius posticus muscle mimicking a mass on mammogram

Cited by 7 publications

References 4 publications

Subclavius Posticus Muscle with Anomalous Posterior Insertion: Case Report

Subclavius Posticus Muscle with Anomalous Posterior Insertion: Case Report

A Case Report of Bilateral Subclavius Posticus Muscle

The subclavius posticus muscle: an unusual cause of thoracic outlet syndrome

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