A case of plane xanthomatosis in a 67-year-old woman, suffering from c
hronic lymphatic leukaemia, who developed asymptomatic yellow plaques
on the neck, upper arms and chest is reported. Histology was suggestiv
e of xanthelasma. Development of plane xanthomata has been reported in
association with various haematological malignancies and with benign
monoclonal gammopathies, but not previously with chronic lymphatic leu
kaemia.