A case of large peripheral osteoma occurred in the hard palate of the left maxillary molar region

• Published in: Japanese Journal of Oral and Maxillofacial Surgery Vol. 33; no. 5; pp. 971 - 975
• Main Authors: NAKADE, Osamu, KANNO, Hidetoshi, OKUYAMA, Tomizo, OHUCHI, Tomoyuki, HORIKOSHI, Tatsuro, ABE, Hideji, NARIKAWA, Yoshiaki, MURAI, Shigeru, YAEGASHI, Kazuhide, KAKU, Tohru, KICHIKAWA, Yasuko
• Format: Journal Article
• Language: English
• Published: Japanese Society of Oral and Maxillofacial Surgeons 1987
• Subjects: benign bone tumor; cancellous osteoma; peripheral osteoma
• ISSN: 0021-5163; 2186-1579
• DOI: 10.5794/jjoms.33.971

A 41-year-old woman was referred by her dentist because of a tumor mass in the left maxilla which interfered with swallowing and speech. She first noticed a small and painless mass about 20 years ago. Macroscopic examination showed a pedunculated tumor mass, the size of hen's egg, attached to the hard palate of the left maxillary molar region. The radiographic examination revealed a densely radiopaque rim surrouding a central region showing a slightly ground glass-like pattern. Histologically, the specimen consisted of a rim of compact bone enclosing a central area of cancellous bone. The marrow spaces contained the fatty or fibrous tissue. The diagnosis was cancellous osteoma.