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P Balercia

Publications and source records attributed to P Balercia.

15 recordsLinked to original sources

Salivary glands tumours: a retrospective study of 454 patients.

AIM: Salivary glands tumors constitute a highly heterogeneous group in human oncological pathology. They show different clinical, epidemiological, histopathological and evolutionary characteristics. METHODS: In this paper we have analysed their epidemiological aspects in 454 patients with salivary glands tumors surgically treated at the Maxillofacial Surgical Unit of the Azienda Ospedaliero-Universitaria ''Ospedali Riuniti Umberto I-G.M. Lancisi-G. Salesi'', Ancona, Italy, from 1990 to 2002, to evaluate the incidence of the different types of neoplasia and their age and sex distribution. RESULTS: Our results show that 63.22% of salivary glands tumors occur in the parotid gland, with a predominance of benign tumours, pleomorphic adenoma being the most prevalent histological type. A higher prevalence was observed in the female sex. CONCLUSIONS: Malignant tumors were more common in the elderly than in young patients and the most common histological types were mucoepidermoid carcinoma and adenoid cystic carcinoma.

Age Distribution↗

Angiogenesis in oral squamous cell carcinoma.

Many retrospective studies have recently shown that microvessel density could represent a valid independent prognostic factor for overall survival and disease-free survival for primary tumours. The fact that oral tumours with a higher microvessel density showed a tendency to present distant metastasis and a bad prognosis, suggested that angiogenetic activity would play a pivotal role also in oral carcinomas, exerting a negative effect on the clinical course and representing an independent negative prognostic factor also for this type of tumour. Based on these results, microvessel density was evaluated, in the present study, in 64 cases of squamous cell carcinoma of the oral cavity, using immunohistochemical analysis with anti-CD34 monoclonal antibody. Possible correlations between microvessel density and clinico-pathological parameters were analysed, such as: age, sex, tumour localization and size, TNM stage and histological grading. Statistical analysis has shown that microvessel density differs in the 3 histological groups (G1, G2, G3) (p = 0.0331), and between node-positive and node-negative patients (p < 0.0001). No statistical correlation was observed between microvessel density and other clinical parameters such as age, sex, tumour site and size.

Adult↗

[The impacted canine in orthodontics].

The Authors after statistic elaborations about 6343 cases of impact tooth treated in Division of Odontostomatology and Maxillo-Face Surgery Regional Hospital "Umberto 1." of Ancona from 1974 to 1988 pay attention about the impact canine. They explay about the operative protocol that they divided in orthodontic and surgery times, emphatised the scrupulous execution of protocol to take a final success.

Cuspid↗

[Keratocysts].

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Adult↗