title: Serum vitamin A levels in patients with untreated T1 or T2 squamous carcinoma of the larynx: a pilot study.
abstract: The serum retinol levels of 19 patients with T1 or T2 tumours of the larynx were compared with those of non-malignant smoking and non-malignant non-smoking controls matched for age, sex and weight. The cancer group had a significantly lower level of serum retinol than either control group between which there was no significant difference. It is unlikely that the lower serum retinol levels were due to either tumour or cigarette smoke.
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000097:blood* / Q000473:pathology; D005260:Female; D006801:Humans; D007822:Laryngeal Neoplasms / Q000097:blood* / Q000473:pathology; D008297:Male; D009367:Neoplasm Staging; D010865:Pilot Projects; D012907:Smoking; D014801:Vitamin A / Q000097:blood*
chemical_list: D014801:Vitamin A