Diagnostic performance of narrow-band imaging international colorectal endoscopic and Japanese expert team classification systems for cancer precancerous lesions

BACKGROUND Normal and cancerous tissues have distinct auto-fluorescence properties because of differences in their biophysical and biochemical agents. Scientific evidences related to diagnostic fluorescence imaging for detection of oral precancerous and cancerous lesions are very limited. OBJECTIVES The aim of this study was to find out potential relationships between serum, salivary and tiss...

BACKGROUND Previous studies found that topical photodynamic therapy (PDT) is very effective for human oral precancerous lesions. METHODS This study evaluated whether topical photosan-mediated PDT (topical photosan-PDT), using a 640-nm light-emitting diode (LED) light, is an effective treatment modality for hamster buccal pouch precancerous lesions. Fourteen 7,12-dimethylbenz(a)anthracene (DMB...

Background & Objective: Abdominal cutaneous and subcutaneous nodules are uncommon lesions which may be benign or malignant. Majority of the malignant nodules are metastatic in origin and may be the initial presentation of primary malignancy, hence an early diagnosis is important. Our aim was to find out the spectrum of lesions (both non-neoplastic and neoplastic) that present as cutaneous and s...