MRI is most advantageous for Type I first branchial cleft
cysts and for parapharyngeal masses that may be second branchial cleft
(43) For this reason, first branchial cleft
cysts, which represent the second-most common branchial cleft
anomaly, can arise anywhere from the external auditory canal through the parotid gland to the submandibular triangle.
Cysts, fistulae, and sinuses arising from the branchial clefts
or pouches are relatively uncommon in humans and domestic animals, and have never been reported in birds.
Surgical technique for excision of first branchial cleft
anomalies: How we do it.
(a) Second branchial cleft
cyst: Most uninfected second branchial cleft
cysts demonstrate the typical appearances of a cyst in that they are well-defined and anechoic with no internal debris and show posterior acoustic enhancement however, some cysts may exhibit a pseudo solid appearance with uniform internal echoes.
cysts (BCC) arise from incomplete obliteration of any branchial tract, resulting in either a cyst (75%) or sinus tract (25%).
Several radiologic features of contrast-enhanced CT are typical of branchial clefts
including fat streaking and hypodensity within the ipsilateral thyroid lobe, and gas bubbles along the tract or within the cyst (27).
The first branchial cleft
becomes the external auditory meatus, and the first branchial pouch gives rise to the middle ear and eustachian tube.
A branchial cleft
cyst is made up of a dense lymphoid infiltrate that is intimately associated with an epithelium-lined cyst or cysts (figure 1).
Cysts, sinuses and fistula of the neck arising from the first and second branchial clefts
. Ann Surg 1955; 142:904-8.
The patient underwent excisional biopsy of the right neck mass, with a clinical diagnosis of branchial cleft