Zhou Huijun 1 , Wang Zheng 2
  • 1 Department. of Plqstic &;
  • Reconstructive Surgery;;
  • Ninth People s;;
  • Hopsital of Shanghai;;
  • 200011.;;
  • 2Department. of Electron Microscopy;;
  • Ninth;;
  • People s Hospital of Shanghai;;
  • 200011;
Keloid; Hypertrophic scar; Myofibroblast.
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The ultrastructures of 14 keloids and 7 hypertrophic scars were examined by electron micrascopy.Both lesions were found to be comprised of fibroblasts, macrophages, microfi brils of collagen andmicrovessels which were partly or completely obliterated. Most fibroblasts were of active cell types.They contained abundant coarse endoplasmic reticulum and prominent Golgi complexes. The fibrils inthe lesions were irtegularly arranged. Meanwhile myofibroblasts were often seen in the keloid.In the cytoplasm of the myofibroblasts, in addition to coarse endoplasmic reticulum and Golgi complexes, many fine myofilaments, dense bodies, dense patches and distrupted basal lamina were present. These characteristic features might help to differentiate keloid from hypertrophic sacr.

Citation： Zhou Huijun,Wang Zheng. ABSTRACTSOBSERATION OF THE ULTRASTRUCTURES OF THE KELOID AND HYPERTROPHIC SCAR. Chinese Journal of Reparative and Reconstructive Surgery, 1994, 8(3): 175-177. doi: Copy

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