Clinical, histologic, and immunopathologic features of two cases with chilblain-like lesions. (A) Patient 2 Table S1. Painful chilblain-like lesions on toes; (B) Lichenoid dermatitis with perivascular and periadnexal lymphocytic infiltration on superficial and deep dermis. (Hematoxylin and eosin stain, original magnification ×100); (C) Granular IgM deposition in dermal vessels (Direct immunofluorescence, original magnification ×200); (D) C9 reactivity in dermal vessels (Immunohistochemistry, original magnification ×100); (E) Patient 8 Table S1. Chilblain-like violaceus lesions on toes; (F) Perivascular and perianexial lymphocytic infiltration on superficial and mid dermis. (Hematoxylin and eosin stain, original magnification ×100); (G) Granular C3 deposition in superficial dermal vessels (Direct immunofluorescence, original magnification ×200); (H) C9 reactivity in dermal vessels (Immunohistochemistry, original magnification ×100).