The very close botanical relationship of cabbage, brocoli, Brussel sprouts and califlower (all classified as varieties of Brassica oleracea
) suggests that these contain very similar allergens. This agrees with the SPT data of Blaiss et al. (1987) [284
] and Panconesi et al. (1980) [452
] although no IgE inhibition studies have been reported.
Blaiss et al. (1987)  did not use immunoblots but used gel filtration fractions of the raw cabbage extract prepared using a BioGel A column (0.5m) calibrated with 2,000,000 to 13,930 Daltons standards. The column was equilibrated with phosphate buffered saline (10 mM, pH 7.2). Allergens binding IgE from the patients sera were found over a broad range of molecular mass by RAST. One polypeptide ran between 67 kDa and 45 kDa and a more strongly binding polypeptide ran at >45 kDa.
A 28-year old woman developed itching on contact with several vegetables and had a positive scratch test to cabbage (Calnan, 1981 ).
Chakrabarti et al. (2003)  describe contact dermatitis to broccoli with a positive patch test and Van Ketel (1975)  described contact allergy to cauliflower. Occupational dermatitis to cabbage was reported by Leoni & Cogo (1964) .