骨外骨化常见于软骨、韧带、肌腱 ,肾盂也偶见。新近 ,我们经治 1例少见的食管入口粘膜下组织骨化并发喉癌的患者 ,险误诊为喉癌浸润食管入口而放弃手术。患者 ,男 ,71岁。因持续性声嘶伴吞咽障碍半年 ,于 1 999年 7月 2 9日入院。1个月前行纤维喉镜检查 :右声带前段下缘有灰白 Osteogenesis is common in cartilage, ligaments, tendons, pelvis is also occasionally. Recently, we treated a rare case of esophageal mucosal inguinal tissue in patients with ossification and laryngeal cancer, misdiagnosed as laryngeal cancer infiltrating esophageal portal and give up surgery. Patient, male, 71 years old. Due to persistent hoarseness with swallowing six months, in July 1999 1,99 admission. 1 month ago fiberoptic examination: the lower right edge of the front vocal gray