Mitigating SUV uncertainties using total body PET imaging.

Purpose: Standardised uptake values (SUV) are commonly used to quantify F-FDG lesion uptake. However, SUVs may suffer from several uncertainties and errors. Long-axial field-of-view (LAFOV) PET/CT systems might enable image-based quality control (QC) by deriving F-FDG activity and weight from total body (TB) F-FDG PET images.

[Statement of ingredients of cosmetics].

Since January 1st 1997 there is European legislation labelling that cosmetic products are supplied with a list of their ingredients. The ingredients are given in order of decreasing concentration using the nomenclature 'International nomenclature cosmetic ingredient' (INCI). This enables dermatologists to identify the allergenic components of cosmetic products in patients with allergic contact dermatitis caused by cosmetics, and enables allergic patients to purchase other cosmetic products without risking a recurrence of dermatitis.

Conversion of common names of cosmetic allergens to the INCI nomenclature.

We have made a list of substances that can be present in cosmetics and have been described as allergens, and compared their formerly more familiar names with International Nomenclature Cosmetic Ingredient (INCI) nomenclature, when different. The list should assist dermatologists in advising their patients allergic to cosmetic ingredients.

Methyldibromoglutaronitrile (Euxyl K 400): an important "new" allergen in cosmetics.

Euxyl K 400 is a preservative system for cosmetics and toiletries that contains phenoxyethanol and methyldibromoglutaronitrile in a 4:1 ratio. In The Netherlands, Italy, and Germany, the prevalence of allergy to Euxyl K 400 has risen in the past 4 years and is currently 2% to 4% in patients suspected of having contact dermatitis. The allergenic ingredient is nearly always methyldibromoglutaronitrile.

Contents of methyl-, ethyl-, propyl-, butyl- and benzylparaben in cosmetic products.

The contents of methyl-, ethyl-, propyl-, butyl- and benzylparaben in 215 cosmetic products have been determined to elucidate the concentration and frequency of use of these parabens in cosmetic products, and to monitor whether the products complied with the Danish and EEC regulations. The results showed that 77% of the products investigated contained 0.01%-0.

[Allergic contact eczema due to 'tea tree' oil].

In four patients, three women aged 45, 29 and 52 years and a man aged 45 years, allergic contact dermatitis due to 'tea tree' oil was diagnosed. The case of the man was published before. 'Tea tree' oils are essential oils distilled from the leaves of myrtaceous trees and shrubs occurring in Australia and South-East Asia.