Filarial dance sign

The filarial dance sign refers to a twirling motion of microfilariae (e.g. W. bancrofti) noted in dilated lymphatic channels. It is identified as a characteristic sign and indicator of scrotal filariasis.

The dilated channels are identified with absence of color flow on color Doppler study (CDS) and the microfilariae as curvilinear echogenic undulating structures within it. Generally 5-6 microfilariae are seen per channel.

Ultrasound - general index
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Article information

rID: 26945
System: Urogenital
Tag: fds, aps
Synonyms or Alternate Spellings:
  • Dance sign in filariasis

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Cases and figures

  • Case 1: Filarial dance sign: breast
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