بسم الله الرحمن الرحیم

Case presentation

10-year-old female painless swelling left perimandibular area Firm three months No palpable neck lymphnode No history of medical conditions Extraoral findings

Case presentation Intraoral examination buccal and lingual expansion Healthy normal mucosa

Case presentation

extensive unilocular and radiolucent lesion left mandibular body from the canine to the first molar 3.6 cm by 2.3 cm second premolar impaction adjacent teeth Root Resorption buccal and lingual expansion

Differential diagnosis

Odontogenic cysts (developmental/inflammatory) Odontogenic tumors Bone pathology

Odontogenic cysts Dentigerous OKC COC Radicular

Odontogenic tumors Unicystic ameloblastoma Odontoma Ameloblastic fibroma Ameloblastic fibro_odontoma Odonto ameloblastoma CEOT AOT

Bone pathology CGCG Simple bone cyst ABC Fibrous dysplasia Cemento_osseous Dysplasia OF

AND FINALLY…

Dentigerous cyst OKC AOT Unicystic ameloblastoma solid/multicystic ameloblastoma

pathology

Dx solid/multicystic ameloblastoma

AMELOBLASTOMA benign neoplasm of odontogenic epithelial origin 1) solid/ multicystic (86% of cases); 2) unicystic (13% of cases); 3) peripheral (1% of cases)

origin remnants of the dental lamina enamel organ epithelial lining of odontogenic cyst basal cells of the oral mucosa

MULTI CYSTIC AMELOBLASTOMA 10 to 19 posterior of the mandible painless swelling multi locular/uni locular impact 3 rd molar

Tx based on the lesion clinical type (solid/multicystic, unicystic, peripheral) location /size / age simple bone curettage to segmental resection

Thanks … zahra amiri elaheh ansari