Squamous cell carcinoma of the oral cavity. A clinico-pathological study of 106 Nigerian cases.

A total of 106 patients with squamous cell carcinoma of the oral cavity and maxillary sinus in Nigerians were studied and analysed clinicopathologically for sex, age, site distribution as well as histological differentiation. The lesion was commoner in males than females (ratio 1.3 to 1.

Odontogenic carcinoma with dentinoid.

An unusual case of odontogenic carcinoma with dentinoid is presented and discussed. This case is the first reported to show this peculiar histologic picture. The lesion recurred following what was deemed adequate surgical excision from both the clinical and histologic viewpoints.

Histoenzymological features of epithelial cells in lesions of oral mucosa in cysts and ameloblastomas of jaws.

A histoenzymological study was carried out on 41 tissue specimens removed at biopsy and for surgical operations of the following lesions: benign hyperkeratosis, lichen planus, severe epithelial dysplasia, carcinoma in situ, epidermoid carcinoma, radicular cyst, odontogenic keratocyst and ameloblastoma. The purpose of this study was to study some possibly significant variations in levels of activities of oxidative enzymes, diaphorases, acid phosphatases and Naphthol esterases in such lesions (normal oral mucosa and epidermis serving as controls). In the lesions of the oral mucosa, these histoenzymological variations were not sufficiently characteristic to contribute to histological diagnosis.