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  • O Odukoya
  • 1995
Two hundred and eighty-nine cases of odontogenic tumors that accumulated in the files of the biopsy service of the Lagos University Teaching Hospital during a period of 21 years were analysed and categorised according to the most recent WHO classification of odontogenic tumors. Odontogenic tumors constituted 19% of all oral/jaw tumors and tumor-like(More)
OBJECTIVE This study aimed to add to existing knowledge on 90 cases of desmoplastic ameloblastoma (DA) previously reported in the scientific literature and analyze data that could help speculate on its biologic profile. STUDY DESIGN From 330 cases of ameloblastoma (pooled from 573 histologically diagnosed odontogenic tumours) 17 cases of DA were retrieved(More)
w cell line, HCPC I, was established from an epidermoid carcinoma of the Syrian golden hamster cheek pouch. The carcinoma was induced by applications three times a week of a 0.5% solution of 7,12-dimethylbenz[a]anthracene (DMBA) in heavy mineral oil. The HCPC I cell line has been maintained through 60 passages over 15 months. Electron microscopy of the cell(More)
A two-phase mechanism of chemical carcinogenesis in hamster buccal pouch has been demonstrated. Painting of buccal pouches three times weekly with a 0.1 percent solution of 7,12-dimethylbenz(a)anthracene (DMBA) in mineral oil for 10 weeks resulted in no visible tumors nor any microscopic evidence of dysplasia after the animals had been maintained for a 20(More)
PURPOSE We aimed to determine the contributory percentage of histopathologic diagnoses of routine biopsies and to ascertain the possible indicators for histopathologic examination to confirm the clinical diagnosis of periradicular lesions of extracted teeth. PATIENTS AND METHODS This was a prospective study carried out over a period of 8 months on(More)
Eighty young adult male and female golden hamsters (Mesocricetus auratus) were divided into four equal groups. The left buccal pouches of the animals in group 1 were painted three times weekly for 24 weeks with 0.1% solution of 7,12-dimethylbenz[a]anthracene (DMBA) in heavy mineral oil. The left buccal pouches of the animals in group 2 were similarly(More)
AIM Clinicopathological analysis and melanin pigmentation occurrence in adenomatoid odontogenic tumour (AOT) diagnosed and managed at the Lagos University Teaching Hospital during a 29- year period. METHODS Records of 31 cases were reviewed and standard epidemiological data were obtained. Haematoxylin and eosin stained slides of the cases were retrieved(More)
Nucleolar organizer regions [NORS] are loops of DNA that transcribe to ribosomal RNA. They can be visualized as intranuclear black dots by histochemical staining with a colloid silver solution. Silver stained nucleolar proteins (AgNORs) were counted in a variety of jaw bone tumours. In osteosarcomas, the number of AgNORs was also quantified before and after(More)
BACKGROUND Odontogenic myxoma (OM) is a locally aggressive neoplasm whose clinicopathological characteristics have not been extensively reported in Nigerians. OBJECTIVE To describe the clinicopathological characteristics of cases of OM seen at the Lagos University Teaching Hospital in Nigeria. METHODS A review of both clinical and histopathological(More)
SUMMARY Clinicopathological analysis and growth rate study of 100 cases of ameloblastoma was undertaken. The tumour had site predilection for the mandible (91.0%) and occurred more in males than in females (ratio 1:0.9). 62.0% of patients in the series were less than 20 years of age. The estimated monthly growth rate (EMGR) of ameloblastoma was observed to(More)