case_images: PMC11446193_01
case_images: Clinical and histopathological features. (a-c) Physical examination revealed wheals, edematous erythema, purpura, and livedo reticularis. (d) Histopathological examination of the edematous erythema showing capillary dilation and perivascular cellular infiltration. (HE staining, x40) (e) Histopathological examination of the edematous erythema showing perivascular neutrophil and eosinophil infiltration, nuclear dust, vessel wall destruction, and fibrin deposition in the upper dermis (HE staining, x400).
case_images: IMCRJ-17-823-g0001.jpg
case_images: PMC11446193_01_IMCRJ-17-823-g0001.jpg
case_images: f0001
case_images: Physical examination revealed a variety of rash manifestations across the trunk and extremities, including wheals, edematous erythema, purpura, and livedo reticularis (Figure 1a-c). Histopathological examination of the edematous erythema revealed capillary dilation and perivascular cellular infiltration of the upper dermis (Figure 1d). Additionally, perivascular neutrophil and eosinophil infiltration, vessel wall destruction, and fibrin deposition in the upper dermis were observed in a high-power view (Figure 1e).