前頭骨破壊をきたした前頭洞炎の1症例

A Case of Frontal Sinusitis Accompanied by Osteolysis of Frontal Bone

I．はじめに

　骨髄炎は一般に長幹骨に多発し扁平骨，短骨に起こることはまれである。今回私たちは前頭洞炎より前頭骨骨髄炎を合併し前頭部に限局性の軟らかい腫瘤（Pott's puffy tumor）を形成した症例を経験したので，多少の文献的考察をまじえ，ここに報告する。

　A 58-year-old man, following the common cold, developed frontal sinusitis, which was complicated by frontal bone osteomyelitis and a soft "doughy" swelling-Pott's puffy tumor-the frontal region. X-ray films revealed an osteolytic lesion at the site of swelling. Suspected etiologic factors were hypoplasia of the frontal sinus, obstruction of the middle meatus due to a polyp and constriction of the nasofrontal duct at frontal recess due to a high orbitocranial canal.

　The complete removal of the sequestra and granulation and creation of a communicating passage to the nasal cavity were performed, and post-operative progress was satisfactory.