Filariasis Diagnosed by Real Time Sonographic Imaging as Filarial Dance Sign: A Case Report

  • Sumiran Shrestha Padma Nursing Home, Pokhara, Nepal
  • R. Shrestha MCOMS, Pokhara, Nepal
  • S. Gokhale MCOMS, Pokhara, Nepal
Keywords: Lymphatic filariasis, high resolution ultrasonography, filarial dance sign, noninvasive


 Lymphatic filariasis is a major public health problem. World Health Organization (WHO) has graded filariasis, as the second leading cause for permanent and long-term disability after leprosy. It is a chronic disabling parasitic disease prevalent in South Asia and Africa. A case of 26-year-old male resident of district Palpa presented with swelling of left inguinal region since 3-4 days and pain in inguinal region since a month. He had no history of trauma, fever or any other systemic symptoms. High frequency, high-resolution scrotal ultrasonography is a valuable technique for diagnosing scrotal filarial infection. This method revealed “Filarial Dance Sign” which is a distinctive and continuous pattern of movement of live microfilaria indicating active infection. It is a simple, rapid, sensitive and noninvasive technique. Noninvasive ultrasonography is preferable to the invasive FNAC.


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Author Biographies

Sumiran Shrestha, Padma Nursing Home, Pokhara, Nepal

Department of Radiology

R. Shrestha, MCOMS, Pokhara, Nepal

Department of Microbiology

S. Gokhale, MCOMS, Pokhara, Nepal

Department of Microbiology

Case Reports