INTRODUCTION Squamous cell carcinoma is the most common malignant tumor of the oral cavity and one of the 10th most common causes of death. It arises from dysplastic oral squamous epithelium. By considering the pathogenesis of squamous cell carcinoma, the smooth and intact surface for this lesion is not usual. CASE PRESENTATION A painful nodular lesion with smooth surface on the left buccal m...

Squamous papillomas are benign neoplasms. The occurrence of middle ear squamous papilloma is rare. It is usually associated with nasosinusal pathology. The authors report a case of middle ear squamous papilloma and discuss its diagnostic aspects.

AIMS To determine (1) the detection rate of primary carcinoma of the lung by serological assay of CEA (carcinoembryonic antigen); and (2) whether addition of seroassay of squamous cell carcinoma related antigen before treatment improves detection sensitivity. METHODS A prospective study spanning 27 months was conducted at the University Hospital, Kuala Lumpur. Serum CEA (Abbott IMx) and serum...

Sir, Primary squamous cell carcinoma of the rectum is a rare tumour. The diagnosis of squamous cell carcinoma rests on the exclusion of metastases from other organs, proximal extension of carcinoma arising from the anal canal and squamous-lined fistulous tracts. Here we report an uncommon presentation of rectal squamous cell carcinoma in a woman on long-term immunosuppressive therapy. 74 CORRES...

Materials and methods: A total of 3488 women who were undergoing routine cervical screening (1308 CC and 2180 LBC) were included in the initial screening. The results were assessed as either satisfactory or unsatisfactory. Satisfactory results were subdivided as negative, atypical squamous cells of undetermined significance (ASCUS), atypical squamous cells for which high-grade lesions could not...

The Bethesda system is a system of terminology for reporting the results of cervical cytology. It was developed in 1988, and is now widely used in the United States. This system was updated in April 2001. The most important modifications are the following: a) elimination of the category "satisfactory but limited by", b) the reintegration of benign modifications in the normal category, c) "atypi...

Heavy smokers with central type squamous cell carcinoma (SCC) frequently have multiple cancerous lesions in the bronchus. Autofluorescence bronchoscopy (AFB) is useful in the detection of early bronchogenic cancer and dysplastic lesions. We investigated the loss of heterozygosity (LOH) and microsatellite instability (MSI) and expression of four proteins in 13 early stage SCC (early SCC) and 9 s...

AIM To investigate the microRNA expression profile in esophageal neosquamous epithelium from patients who had undergone ablation of Barrett's esophagus. METHODS High throughput screening using TaqMan® Array Human MicroRNA quantitative PCR was used to determine expression levels of 754 microRNAs in distal esophageal mucosa (1 cm above the gastro-esophageal junction) from 16 patients who had un...

INTRODUCTION Basaloid squamous cell carcinoma is a rare and aggressive variant of squamous cell carcinoma. Basaloid squamous cell carcinoma is mostly seen in the upper aerodigestive tract and has a propensity for lymph node spread and systemic metastases. Various treatment modalities have been reported, including surgical excision supplemented with radiotherapy/adjuvant chemotherapy. To the bes...