Department of Oral Pathology, School of Dentistry, Iwate Medical University
Division of Clinical Pathology*, Central Clinical Laboratory, Iwate Medical University
Department of Oral Pathology, School of Dentistry, Iwate Medical University
Department of Oral Pathology, School of Dentistry, Iwate Medical University
Department of Oral Pathology, School of Dentistry, Iwate Medical University
抄録(英)
Pathological examinations undertaken in our department in 2002 were statistically reviewed. There were 602 examinations for 460 cases (Male 227, Female 233) Cases were most frequent in patients in their sixth decade (99 cases) According to histological classifications of the lesions (mean age±SD), odontogenic tumors consisted of 2 ameloblastomas (65 5±12 5), 4 odontomas (24 3±12 2) and 1 odontogenic ghost cell carcinoma (22) The non-odontogenic benign lesions were 29 fibrous hyperplasias (57 0±17 4), 23 hyperkeratoses (leukoplaskia) (57 3±16 2), 10 papillomas (62 1±143), 9 irritation fibromas (63 0±13 4), 8 hemangiomas (57 5±9 2), 6 papillary hyperplasias (65 7±13 7), 5 osteomas (exostosis, enostosis) (55 2±8 0), 4 epithelial dysplasias (60 8±13 3) and 4 penapical cemental dysplasias (45 3±5 7), 3 pleomorphic adenomas (44 3±5 7) Non-odontogenic malignant tumors consisted of 56 squamous cell carcinomas (658±126), 3 malignant lymphomas (68 7±20 1) The odontogenic cysts consisted of 37 radicular cysts (42 8± 15 7), 27 dentigerous cysts (42 9±186) and 16 primordial cysts (43 4±18 7) The non-odontogenic cysts consisted of 30 mucous retention cysts (mucoceles) (22 5±13 7), 18 postoperative maxillary cysts (56 7±9 1), 5 incisive canal cysts (49 8±3 7) and 2 simple bone cysts (13 0±1 4). Also found were 35 chronic inflammatory (granulation) tissues (54 7±14 1), 20 chronic localized hyperplastic gingivitises (epuhses) (50 4±16 8), 13 Sjogren syndromes (54 7±13 0), 10 sialohthiases (56 8±13 3), 7 lichen planuses (64 3±83), 7 dental granulomas (32 7±6 8) and 5 chronic (inflammatory) ulcers (61 0±7 5).