Figure 1. Autochthonous Dirofilaria repens infections in 2 women, Estonia, 2023. A–C) Case-patient 1, showing a painful subcutaneous lesion with edema on her right eyelid (A; black arrow). Two months later, the edema resolved, but a 1.5 cm subcutaneous nodule persisted (B; black arrow). Histopathologic examination of the removed nodule confirmed Dirofilaria spp. (C; larger black arrow); distinctive transverse striations on the cuticle with average distance of 12 µm between the peaks suggested D. repens (inset; small black arrow). Hematoxylin and eosin stain; original magnification ×100. The diameter of the parasite was 390 × 529 µm. D) Case-patient 2, showing a subcutaneous nodule under the right lower eyelid (black arrow).