下顎埋伏智歯抜去と下顎枝矢状分割術後に角化嚢胞性歯原性腫瘍を生じた1例 A case of keratocystic odontogenic tumor after extraction of lower impacted wisdom teeth and sagittal splitting ramus osteotomy
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Keratocystic odontogenic tumor is a benign unicystic or multicystic, intraosseous tumor of odontogenic origin, which is characterized by a lining of parakeratinized stratified squamous epithelium. It can potentially invade and infiltrate surrounding tissues.<br>A case of keratocystic odontogenic tumor after extraction of lower impacted wisdom teeth and mandibular osteotomy is reported.<br>A 22-year-old woman who had undergone extraction of lower impacted wisdom teeth and mandibular osteotomy was referred to our hospital because of discomfort in the left mandible. Panoramic radiography and computed tomographic side of the scans showed a unilocular cystic lesion （20 mm in diameter） in the left mandibular angle.<br>We surgically extirpated the tumor with the patient under general anesthesia.<br>Histopathological examination showed a cystic lesion, which contained keratinized tissue and was lined by parakeratinized stratified squamous epithelium. A keratocystic odontogenic tumor was thus diagnosed.<br>As of 1 year 7 months after the operation, no recurrence has been detected.
Keratocystic odontogenic tumor is a benign unicystic or multicystic, intraosseous tumor of odontogenic origin, which is characterized by a lining of parakeratinized stratified squamous epithelium. It can potentially invade and infiltrate surrounding tissues.<br>A case of keratocystic odontogenic tumor after extraction of lower impacted wisdom teeth and mandibular osteotomy is reported.<br>A 22-year-old woman who had undergone extraction of lower impacted wisdom teeth and mandibular osteotomy was referred to our hospital because of discomfort in the left mandible. Panoramic radiography and computed tomographic side of the scans showed a unilocular cystic lesion （20 mm in diameter） in the left mandibular angle.<br>We surgically extirpated the tumor with the patient under general anesthesia.<br>Histopathological examination showed a cystic lesion, which contained keratinized tissue and was lined by parakeratinized stratified squamous epithelium. A keratocystic odontogenic tumor was thus diagnosed.<br>As of 1 year 7 months after the operation, no recurrence has been detected.
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- 日本口腔外科学会雑誌
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日本口腔外科学会雑誌 57(8), 466-470, 2011-08-20
Japanese Society of Oral and Maxillofacial Surgeons