Galgano C, Samson J, Küffer R, Lombardi T
Private Practice Cagliari, Italy.
Int Endod J. 2003 Dec;36(12):907-11. doi: 10.1111/j.1365-2591.2003.00736.x.
To report a case of focal cemento-osseous dysplasia (FCOD) affecting a single tooth misdiagnosed as an inflammatory periapical lesion.
The patient, a black 47-year-old woman complained of pain affecting the right side of the mandible. Routine X-ray examination discovered a periapical radiolucency on the mandibular left lateral incisor (tooth 32), which was otherwise normal and not carious. As the response of this tooth to a vitality test was doubtful, the lesion was diagnosed as a periapical granuloma or cyst secondary to pulpal necrosis. Endodontic treatment and curettage of the periapical lesion were performed, and histological examination of the curettage material revealed a localized osseous dysplasia.
FCOD may rarely affect only one tooth, resembling a periapical granuloma or cyst. Careful diagnosis is of paramount importance in cases of questionable periapical lesions affecting normal-looking teeth, before beginning treatment. FCOD generally requires no treatment. Biopsy is warranted in case of doubt.
报告一例局限型牙骨质骨发育异常（FCOD）累及单颗牙齿，最初被误诊为根尖周炎的病例。
患者为一名47岁黑人女性，主诉下颌右侧疼痛。常规X线检查发现下颌左侧侧切牙（32号牙）根尖周有透射影，该牙其他方面正常且无龋坏。由于该牙对活力测试的反应可疑，病变被诊断为牙髓坏死继发的根尖肉芽肿或囊肿。对根尖病变进行了根管治疗和刮治，刮出物的组织学检查显示为局限性骨发育异常。
FCOD很少仅累及一颗牙齿，可类似根尖肉芽肿或囊肿。在对看似正常的牙齿出现可疑根尖病变进行治疗前，仔细诊断至关重要。FCOD通常无需治疗。存疑时需进行活检。
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