Rodrigues Bruno-Teixeira-Gonçalves, Israel Mônica-Simões, de Moura Kenia-Lorena-Monteiro, Pinheiro Giulianna-Lima, Carlos Roman, Pires Fábio-Ramoa
DDS, Dental School, State University of Rio de Janeiro, Rio de Janeiro, Brazil.
DDS, PhD, Stomatology, Department of Diagnosis and Therapeutics, Dental School, State University of Rio de Janeiro, Rio de Janeiro, Brazil.
J Clin Exp Dent. 2020 Oct 1;12(10):e1005-e1010. doi: 10.4317/jced.57653. eCollection 2020 Oct.
Peripheral odontogenic keratocyst (POKC) is a rare soft tissue entity showing the same histological characteristics of odontogenic keratocyst. Herein, we report two cases of POKC affecting the gingiva/alveolar mucosa. Case 1. A 43-year-old female was referred for evaluation of a painless well-defined nodular, sessile, non-tender swelling in the right maxillary buccal gingiva. No radiological alterations were observed. The patient was submitted to excisional biopsy and histological diagnosis was POKC. There were no signs of local recurrence after a 4-year follow-up. Case 2. A 63-year-old female was referred for evaluation of a painless well-defined nodular, sessile, yellowish swelling in the anterior mandibular alveolar mucosa. No radiological alterations were observed. The patient was submitted to excisional biopsy and histological diagnosis was POKC. Patient recovery was uneventful but she did not return for follow-up. POKC should be considered in the differential diagnosis of gingival cystic swellings and can be managed through conservative surgery. Odontogenic keratocyst, peripheral, gingiva, alveolar mucosa.
外周性牙源性角化囊肿（POKC）是一种罕见的软组织病变，具有与牙源性角化囊肿相同的组织学特征。在此，我们报告两例累及牙龈/牙槽黏膜的POKC病例。病例1。一名43岁女性因右侧上颌颊侧牙龈出现无痛性边界清晰的结节状、无柄、无压痛肿胀而前来评估。未观察到放射学改变。患者接受了切除活检，组织学诊断为POKC。4年随访后无局部复发迹象。病例2。一名63岁女性因下颌前牙槽黏膜出现无痛性边界清晰的结节状、无柄、淡黄色肿胀而前来评估。未观察到放射学改变。患者接受了切除活检，组织学诊断为POKC。患者恢复顺利，但未返回进行随访。在牙龈囊性肿胀的鉴别诊断中应考虑POKC，可通过保守手术进行处理。牙源性角化囊肿，外周性，牙龈，牙槽黏膜。
