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Parotid mandibular bone defect: A case report emphasizing imaging features in plain radiographs and magnetic resonance imaging

Imaging Science in Dentistry 2017년 47권 4호 p.269 ~ 273
Hisatomi Miki, Hisatomi Miki, Munhoz Luciana, Asaumi Junichi, Arita Emiko Saito, Munhoz Luciana, Asaumi Junichi, Arita Emiko Saito,
소속 상세정보
 ( Hisatomi Miki ) - Okayama University School of Dentistry Department of Oral and Maxillofacial Radiology
 ( Munhoz Luciana ) - Sao Paulo University School of Dentistry Department of Stomatology
 ( Asaumi Junichi ) - Okayama University School of Dentistry Department of Oral and Maxillofacial Radiology
 ( Arita Emiko Saito ) - Sao Paulo University School of Dentistry Department of Stomatology
 ( Munhoz Luciana ) - Sao Paulo University School of Dentistry Department of Stomatology
 ( Asaumi Junichi ) - Okayama University School of Dentistry Department of Oral and Maxillofacial Radiology
 ( Arita Emiko Saito ) - Sao Paulo University School of Dentistry Department of Stomatology

Abstract


Mandibular bone depression, also known as Stafne bone cavity, is defined as a bone depression filled mainly with salivary gland tissue. Parotid gland bone defects are infrequently observed. We report the case of a 52-year-old male patient who underwent radiographic examinations due to temporomandibular joint dysfunction, and a radiolucent area was detected in the mandibular ramus, with a provisional diagnosis of traumatic bone cyst or parotid mandibular bone defect. The patient was then referred for magnetic resonance imaging, which demonstrated a hyperintense area eroding the mandibular ramus, which corresponded to glandular tissue. Although the defect was a benign lesion, radiolucencies in the mandibular ramus lead to concerns among professionals, because their radiographic features can resemble various intrabony neoplastic lesions, such as giant cell tumors or benign tumors of the parotid gland.

키워드

Bone Cysts; Salivary Glands; Magnetic Resonance Imaging; Radiography; Panoramic

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