Incomplete branchial arch syndromes, branchial cleft cyst and vascular hamartoma in a patient with multiple neurofibromatosis.

A case report with simultaneous occurrence of neurofibromatosis, incomplete branchial arch syndromes, a branchial cleft cyst and a pseudocyst in connection with a vascular hamartoma anterior to the right ear of a 38-year-old woman is presented. A possible common pathogenesis of the vascular hamartoma and the incomplete branchial arch syndromes as well as that of the neurofibromatosis is suggested. The pseudocyst is interpreted as a branchial cleft cyst showing inflammatory changes due to a pharyngitis shortly before the preauricular tumor appeared.