A multicenter study of oral malignant tumors from Thailand.

Background: Oral malignant tumors in Thailand have not been extensively studied. Hence the following study was conducted.

Aims: To determine the prevalence and clinicopathologic data of the oral malignant tumors from Thailand.

Geriatric oral lesions: A multicentric study.

Aim: To carry out an oral biopsy survey in geriatric patients from the participating institutions.

Methods: The biopsy records of the participating institutions were reviewed for oral lesions from patients aged 65 years and older diagnosed from 2003 to 2012. Demographic data and the site of the lesions were collected.

Ribosomal protein S6 phosphorylation is associated with epithelial dysplasia and squamous cell carcinoma of the oral cavity.

Ribosomal protein S6 (RPS6), a downstream effector of the mammalian target of rapamycin pathway (mTOR), is activated in many cancers including oral squamous cell carcinoma (OSCC). However, the role of RPS6 in the progression of potentially malignant disorders (or premalignant lesions) to OSCC is unknown. The purpose of this study was to examine the expression of RPS6 in epithelial dysplasia and OSCC to determine the association of RPS6 in tumor progression.

An analysis of microvessel density in salivary gland tumours: a single centre study.

Backgrounds: Microvessel density (MVD) can be used for determining neoplastic neovascularisation. Tumour angiogenesis correlates with prognosis of cancers in many organs. The aims of this study were to evaluate MVD as demonstrated by CD31 and CD105 in salivary gland tumours (SGTs), and to correlate the MVD results with clinicopathological characteristics of the tumours.

Ameloblastoma: a multicentric study.

Objective: The objective of this study was to supplement the current ameloblastoma database by reporting the clinicopathologic features of ameloblastoma from Asia and North America.

Materials And Methods: Biopsy records of the participating institutes were reviewed for lesions diagnosed as ameloblastoma during the years 1993 to 2009. Slides were reclassified according to the World Health Organization Classification of Odontogenic Tumors in 2005.