Brugia malayi - Filariasis on Microscopy What is Brugia malayi? It is a filarial parasitic worm that can cause swelling called lymphedema. The adult worms cause lymphatic scarring usually below the knee or elbows. Rojelio Mejia, MD @Rojelio #Brugia #malayi #Filariasis #Microscopy #clinical #pathology #microbiology #nematodes #parasite