患者女,40岁。近半处来左侧鼻塞,鼻腔流脓性涕,有臭味,鼻涕中带血丝,伴头昏、头痛,于1981年9月4日入院。检查:右侧鼻中隔与鼻底部交界处距前鼻孔30mm有一圆形隆起物,表面覆有脓血性分泌物。拭去分泌物见有一灰白色圆形坚硬光滑物,露出鼻底部约3mm,无叩痛,不松动,触之似金属。口腔检查:无缺齿,左鼻X线照片显示有一齿,髓腔及牙周模糊可 Female patient, 40 years old. Near the left half of the nasal obstruction, nasal purulent nasal discharge, stinking, bloody nasal discharge, with dizziness, headache, admitted on September 4, 1981. Check: the right nasal septum and nasal at the junction of 30mm away from the nose before a round bump, covered with purulent discharge. Wipe the secretions to see an off-white hard and smooth body, exposing the bottom of the nose about 3mm, no percussion, no loose, touch like metal. Oral examination: no missing teeth, left nasal X-ray shows a tooth, pulp cavity and periodontal blur