Spectrometry of Cancerous Lesions of the Oral Cavity

2016-08-02 05:53:24 | BioPortfolio


La detection of suspect lesions is based on the clinical examination of the oral cavity and pharyngolaryngeal endoscopy, but the examination to confirm the diagnosis is a pathology examination of the biopsy taken during the endoscopy. Taking the biopsy, however, can be difficult. On the one hand , it is an invasive procedure, and may engender complications, and on the other hand, certain modifications of the mucosa may be discrete, or not particularly specific or, on the contrary, disseminated or extremely widespread.

Non-invasive tools to help the diagnosis could prove to be particularly interesting 1) to restrict the use of biopsies to patients in whom it is really necessary 2) and to identify the area where the biopsy should be done in cases of multiple lesions. In this context, spectroscopy could be a promising alternative.

The investigator puts forward the hypothesis that cancerous and precancerous lesions of the mucosa of the upper airways and digestive tract present a characteristic spectrometric profile. Indeed, as malignant tumours are hypervascularized and as precancerous tumours show signs of angiogenesis, we expect that the reflectance of haemoglobin will be diminished in the specific wavelengths of 540 and 575 nm, corresponding to the principal wavelengths absorbed by haemoglobin.

This pilot study will make it possible to construct an algorithm that could be used to classify lesions of the upper airways and digestive tract as either seemingly benign or cancerous.

Study Design

Allocation: Non-Randomized, Intervention Model: Parallel Assignment, Masking: Open Label


Cancerous Lesions of the Oral Cavity




CHU Dijon Bourgogne




Centre Hospitalier Universitaire Dijon

Results (where available)

View Results


Published on BioPortfolio: 2016-08-02T05:53:24-0400

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Medical and Biotech [MESH] Definitions

The oval-shaped oral cavity located at the apex of the digestive tract and consisting of two parts: the vestibule and the oral cavity proper.

A species of ACTINOMYCES found in the oral cavity of man and hamsters. It has been isolated from actinomycotic lesions in swine, cats, and dogs and has been identified as a causative agent of animal diseases.

Oral lesions accompanying cutaneous lichen planus or often occurring alone. The buccal mucosa, lips, gingivae, floor of the mouth, and palate are usually affected (in a descending order of frequency). Typically, oral lesions consist of radiating white or gray, velvety, threadlike lines, arranged in a reticular pattern, at the intersection of which there may be minute, white, elevated dots or streaks (Wickham's striae). (Jablonski, Illustrated Dictionary of Dentistry)

Uptake of substances into the body via the mucosal surfaces (MUCOUS MEMBRANE) of the oral cavity.

A dental specialty concerned with pathology of the oral cavity.

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