[Carcinoma with a branchial origin]

Carcinoma was observed in a patient with a branchial cyst of about 40 years' standing. The neoformation was removed, but the patient died as a result of cardiocirculatory complications a little more than a year later. Note is taken of the rarity of this form and the compliance of the reported case with the criteria laid down by Martin et al. in 1950.