Sweet syndrome (SS) exists as classical, malignancy-associated, drug-induced and as the new variants: giant cellulitis like SS and neutrophilic dermatosis of the hands. SS exhibits different morphologies. Skin manifestations are usually accompanied by fever and neutrocytosis. All variants respond to systemic corticosteroids, but SS can recur. SS may be the first sign of malignancy or recurrence of previous cancer. It is important to be aware of the disease, which may mimic other reactive and febrile diseases, to enable patients to obtain the correct diagnostic set-up and treatment.