[A bulky lateral cervical mass]. / Une volumineuse tuméfaction cervicale latérale.

Branchial cysts are rare, benign cervical lesions that can mimic thyroid goiters, in particular in areas where goiters are endemic. This case describes an Ivorian patient who presented with what appeared to be a voluminous thyroid goiter. At surgery, it proved to be a cyst of the second pharyngeal arch.