en تخصصي Special گزارش مورد case report Surgical ciliated cysts of the maxilla arise from respiratory epithelium that lodges in the maxilla after radical maxillary or sinus surgery. This case report was conducted in 2020 in Mashhad Dental School, Mashhad University of Medical Science, Mashhad, Iran. We present here an unusual case of surgical ciliated cyst of a 73-year-old adult male patient with a history of nasal polyp surgery 40 years ago. Early diagnosis due to CBCT and Clinical examination was a residual cyst or OKC (odontogenic keratocyst). The histopathology result of this lesion surprised us after the excisional biopsy and enucleation. The clinical examinations and radiographs of the jaw lesions may lead the maxillofacial surgeons to misdiagnosis and mistreatment. Therefore, it is obligatory to notice all aspects of these lesions carefully. Surgical ciliated cyst, Maxilla, Enucleation 132 137 http://wjps.ir/browse.php?a_code=A-10-466-30&slc_lang=en&sid=1 Maryam Peighoun 100319475328460012509 100319475328460012509 No . Department of Endodontics, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran. Sahand Samieerad 100319475328460012510 100319475328460012510 Yes Oral and Maxillofacial Diseases Research Center, Mashhad University of medical sciences, Mashhad, Iran. Noushin Mohtasham 100319475328460012511 100319475328460012511 No Oral and Maxillofacial Diseases Research Center, Mashhad University of medical sciences, Mashhad, Iran. Elahe Tohidi 100319475328460012512 100319475328460012512 No Oral and Maxillofacial Diseases Research Center, Mashhad University of medical sciences, Mashhad, Iran. Shahin Moeini 100319475328460012513 100319475328460012513 No Department of Oral and Maxillofacial Radiology, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.