Histiocytoid giant cellulitis-like Sweet syndrome at the site of sternal aspiration: A case report and review of literature

Figure 1 Cutaneous manifestation and pathological characteristics. A: The skin lesion on the 7^th d after sternal aspiration; B: The skin lesion on the 12^th d after sternal aspiration; C: The skin lesion on the 7^th d after prednisone therapy; D-F: Hematoxylin-eosin stain showed moderate edema in the papillary dermis, with the infiltrate being composed of mononuclear cells and with vesicular twisted nuclei and scant eosinophilic cytoplasm (× 40, × 100, and × 200 magnification from left to right); G-I: Immunohistochemistry showed most of the infiltrating cells expressed myeloperoxidase in the cytoplasm; J-L: Cells expressing CD163 were present in the cytoplasm and constituted the scattered cells around the infiltrate.

Figure 2 Body temperature chart and medication administration. The x-axis represents the number of days since the sternal aspiration and the y-axis represents the body temperature. Between the light green dashed lines, the drugs used on the corresponding dates are listed.