A large cystic mass was found adherent to the skin and underlying strap muscles
. It was punctured and approximately1500ml of serous fluid was aspirated.
The doctors initially suspected the woman to suffer from globus pharyngeus, the sensation of feeling a lump in the throat due to contraction of the strap muscles
of the neck.
It was involving the strap muscles
of both the sides and both the sternocleidomastoids.
No hemorrhage is present in the adjacent throat organs, investing fascia, strap muscles
, thyroid or visceral fascia.
Unusually, the calcified nodule was seen extending to the subcutaneous tissue plane between the strap muscles
A four-layered closure is then performed, including the tracheal defect, strap muscles
, subcutaneous fat, and skin.
The strap muscles
on the bulge of the laryngocele are dissected to reach the laryngocele capsule (figure 1).
This approach exploits the intermuscular plane between sternocleidomastoid muscle, carotid artery and jugular vein laterally and the strap muscles
, trachea and oesophagus medially.
The subcutaneous scar containing the subcutaneous tissue and strap muscles
was opened to reveal the implant.
A couple of strap muscles
, the zygomatic minor, the contempt muscle, (which curls the lip) and the zygomatic major, the laughter muscle (which raises the corners of the mouth up and out) are attached, running from the cheekbone beneath the outer corner of the eye to the side of the upper lip.
The possible causes of voice change after thyroidectomy with preservation of the superior and recurrent laryngeal nerve have been described as division or injury of the strap muscles
[2, 5, 6], cricothyroid muscle injury , modified vascular supply and venous drainage of the larynx , and mucosal congestion due to orotracheal intubation .
The position of the schwannoma between the strap muscles
was consistent of the nerve of origin being a branch of the ansa cervicalis.