Photo Quiz: Disseminated Necrotic Cutaneous Nodules in a Lung Transplant Recipient

(A and B) Necrotic nodules of the inferior limbs. (C to F) Histology of the biopsy of the palate lesion revealing hemorrhagic ulcerated and necrotic tissues, with the presence of cellular structures (indicated by arrows) containing round nuclei with prominent nucleoli and vacuolated cytoplasm on hematoxylin and eosin (H&E) staining (C, E, and F) and immunohistochemical staining using antibodies against Entamoeba spp. (D). Macrophages are indicated by a square.