PMC8082078_01
Maculopapular rash in cervical, scapular, and dorsal regions caused by Trichinella spp. infection.
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Physical examination revealed a maculopapular, confluent, and pruritic rash at the scalp, face, scapular, cervical, chest and back regions (Fig. 1), purpuric maculopapular lesions on both hands as well as bilateral hand hypoesthesia.
a) Dense eosinophilic infiltrate with granulomatous reaction (Hematoxylin-eosin stain, x100). b) Eosinophilic dermal infiltrate with leukocytoclasia and eosinophilic spongiosis (Hematoxylin-eosin stain, x200).
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A skin biopsy showed an eosinophilic dermatosis with granuloma and eosinophilic spongiosis (Fig. 2), but muscular biopsy demonstrated no degenerative changes or inflammatory infiltrate and did not show parasitic eggs or cysts.