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Monosymptomatic Loa loa infection

P A de Viragh1, D Guggisberg, M Derighetti

  • 1Department of Dermatology DHURDV, Lausanne, Switzerland. pviragh@hola.hospvd.ch

Dermatology (Basel, Switzerland)
|November 13, 1998
PubMed
Summary
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A rare case of Loa loa infection in a teen presented with only subtle worm movements under the skin. This unusual presentation highlights the diverse clinical manifestations of this parasitic disease.

Area of Science:

  • Tropical medicine
  • Parasitology
  • Infectious diseases

Background:

  • Loa loa infection, also known as African eye worm disease, is a filarial nematode infection endemic to West and Central Africa.
  • The infection is typically transmitted through the bite of infected deer flies (Chrysops species).
  • Clinical manifestations usually include Calabar swellings, pruritus, and the visible passage of adult worms across the conjunctiva or under the skin.

Observation:

  • A 17-year-old student from Cameroon presented with an unusual form of Loa loa infection.
  • The patient exhibited only rare, subtle movements of adult worms detected subcutaneously.
  • No other typical symptoms such as Calabar swellings or conjunctival migration were reported.

Findings:

  • This case represents an atypical, mono-symptomatic presentation of Loa loa infection.

Related Experiment Videos

  • The diagnosis was confirmed by the detection of subcutaneous adult worm activity.
  • The absence of common symptoms suggests a potentially altered host-parasite interaction or early-stage disease.

    • Implications:

    • This case underscores the importance of considering Loa loa infection even in the presence of non-classical symptoms.
    • It highlights the need for thorough clinical examination and diagnostic awareness in endemic areas.
    • Further research may be warranted to understand the factors contributing to such atypical presentations and their diagnostic challenges.