ほぼ同時期に親と子に発症した流行性耳下腺炎による難聴

MUMPS DEAFNESS DEVELOPED SIMULTANEOUSLY IN FATHER AND SON

　I．緒言

　流行性耳下腺炎（mumps）に併発する難聴は，古くから知られている。今回，筆者らはほぼ同時期にmumpsに罹患した親と子が，共に難聴を起こした珍しい症例を経験したので報告する。

　Deafness concomitant with mumps has been well known. This report presents interesting cases of unilateral deafness due to mumps occurred in one family. A 4-year-old body initially developed hearing impairment, and the right ear was found totally deaf, though conductive hearing-loss was seen on the left ear. During treatment of the boy, his father was infected with mumps resulting in unilateral perceptive deafness. The frequency of deafness in case of mumps was discussed.