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Background: Sweet’s syndrome (SS) has been reported in association with many conditions, including malignancy, infections, autoimmune disorders, pregnancy and drugs. Materials and methods: We reviewed patients with SS-like lesions on the lymphoedema area seen in our department. Clinical manifestations, histopathologic characteristics, treatment and outcome data were recorded and analysed. Results: We report seven women with a history of surgery for breast cancer with axillary lymphadenectomy. Six of them were on tamoxifen. All of them had various lesions consistent with SS localized predominantly on the limb affected by the postmastectomy lymphoedema, and on the ipsilateral chest, trunk and back. One of them presented bullous lesions. Three of the cases underwent spontaneous remission, two resolved with antibiotic therapy, one healed with corticosteroids, and one with corticosteroids plus antibiotic. Conclusions: Erythematous tender plaques on the area of postmastectomy lymphoedema could be considered an unusual manifestation of Sweet’s syndrome. We have found only three similar cases in the literature. Although it is difficult to elucidate the pathogenesis of this entity, it has been suggested that it could be due to immune surveillance impairment.
Background: Sweet’s syndrome (SS) has been reported in association with many conditions, including malignancy, infections, autoimmune disorders, pregnancy and drugs. Materials and methods: We reviewed patients with SS-like lesions on the lymphoedema area seen in our department. Clinical manifestations, histopathologic characteristics, treatment and outcome data were recorded and analyzed. Results: We reported seven women with a history of surgery for breast cancer with axillary lymphadenectomy. Six of them were on tamoxifen. All of them had various lesions consistent with SS localized predominantly on the limb affected by the postmastectomy lymphoedema, and on the ipsilateral chest, trunk and back. One of them presented bullous lesions. Three of the cases underwent spontaneous remission, two resolved with antibiotic therapy, one healed with corticosteroids, and one with corticosteroids plus antibiotic. Conclusions: Erythematous tender plaques on the area of postmastectomy lymphoedema cou We have found only three similar cases in the literature. It has difficult to elucidate the pathogenesis of this entity, it has been suggested that it could be due to immune surveillance impairment.