Figure 4: TEM of an obstructed lymphatic vessel in 24 hours. (a), (b) LSMCs showed morphological expression of phagocytosis of collagen, elastic fibers and themselves (single asterisks). SMC, LSMC; L, lumen; EC, endothelial cell; C, collagen; v, vesicles; asterisk, apoptotic body. Original magnification × 8,000.