Scanning electron microscopy of molluscum contagiosum* Journal Articles uri icon

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  • Molluscum contagiosum is a disease caused by a poxvirus. It is more prevalent in children up to 5 years of age. There is a second peak of incidence in young adults. In order to examine its ultrastructure, three lesions were curetted without disruption, cut transversely with a scalpel, and routinely processed for scanning electron microscopy (SEM). The oval structure of molluscum contagiosum could be easily identified. In its core, there was a central umbilication and just below this depression, there was a keratinized tunnel. Under higher magnification, a proliferation similar to the epidermis was seen. Moreover, there were areas of cells disposed like a mosaic. Under higher magnification, rounded structures measuring 0.4 micron could be observed at the end of the keratinized tunnel and on the surface of the lesion.


  • Schneider, Maiko
  • Almeida Jr, Hiram Larangeira de
  • Abuchaim, Martha Oliveira
  • Schneide, Maiko Abel
  • Marques, Leandra
  • Castro, Luis Antônio Suíta de

publication date

  • February 2013