Although the association of Sweet's syndrome with haemoproliferative d
isorders or solid malignant tumors is well known, only two previous ob
servations associated with T lymphoma have been reported. We report th
e first observation of Sweet's syndrome associated with cutaneous T ce
ll lymphoma, The role of a cytokine cascade released by an abnormal T
cell clone is discussed as an initiating event responsible for seconda
ry infiltration with neutrophils.