[Dirofilariasis in humans. Report of a case with localization in the cheek (author's transl)]

La Semaine Des Hopitaux : Organe Fonde Par L'Association D'Enseignement Medical Des Hopitaux De Paris
|June 24, 1982
PubMed

Insights

Cutaneous dirofilariasis, a parasitic worm infection, can affect humans, though it typically infects animals. This case report details a rare human infection in France caused by Dirofilaria (Nochtiella) repens.

Area of Science:

  • Medical Parasitology
  • Tropical Medicine
  • Dermatology

Background:

  • Cutaneous dirofilariasis is a zoonotic filarial disease caused by Dirofilaria species, primarily affecting animals like dogs and cats.
  • While cosmopolitan, human cases are infrequent, with only a few documented instances in France.

Observation:

  • A 42-year-old man presented with a cheek tumor in Corsica, France.
  • The tumor was diagnosed as cutaneous dirofilariasis.

Findings:

  • Surgical extraction of a pregnant adult Dirofilaria (Nochtiella) repens nematode was performed.
  • This represents the sixteenth registered case of cutaneous dirofilariasis in France.

Implications:

  • Highlights the potential for Dirofilaria (Nochtiella) repens to cause human infections in non-endemic regions.
  • Underscores the importance of considering parasitic etiologies in the differential diagnosis of subcutaneous lesions.
  • Contributes to the epidemiological surveillance of rare zoonotic diseases in Europe.

Related Concept Videos

Rocky Mountain Spotted Fever01:26

Rocky Mountain Spotted Fever

Rocky Mountain Spotted Fever (RMSF) is a severe tick-borne illness caused by Rickettsia rickettsii, a Gram-negative, coccobacillary bacterium. This pathogen is an obligate intracellular parasite, requiring a host cell for replication. Transmission occurs through the bite of an infected tick. In the United States, the most important vectors are Dermacentor variabilis (American dog tick) and Dermacentor andersoni (Rocky Mountain wood tick), though other tick species may also serve as vectors.
Rabies01:28

Rabies

Rabies is a lethal zoonotic disease caused by a single-stranded, negative-sense RNA virus of the Lyssavirus genus, within the family Rhabdoviridae. Its primary mode of transmission to humans is through bites or saliva-contaminated scratches from infected mammals such as dogs, bats, raccoons, or foxes. Transmission can also occur if infectious saliva contacts abraded skin or intact mucous membranes, including the conjunctiva.Viral Entry and Early ReplicationOnce introduced at the bite or scratch...
Leishmaniasis01:30

Leishmaniasis

Leishmaniasis is a protozoal disease caused by species of the genus Leishmania and transmitted through the bite of infected female sandflies. The parasite exists in two principal morphological forms during its life cycle. A sandfly acquires intracellular amastigotes from an infected reservoir host, such as a dog. Within the sandfly, these forms differentiate into motile, flagellated promastigotes. During a subsequent blood meal, promastigotes are injected into the human host, where they...
Toxoplasmosis01:28

Toxoplasmosis

Toxoplasmosis, a zoonotic disease caused by the protozoan Toxoplasma gondii, poses significant public health challenges globally due to its high seroprevalence and varied clinical manifestations. As an obligate intracellular parasite, T. gondii can infect all warm-blooded vertebrates, but felids are its only definitive hosts, shedding unsporulated oocysts into the environment. Humans typically acquire the infection through ingestion of tissue cysts in undercooked meat or oocysts from...
American Trypanosomiasis01:22

American Trypanosomiasis

Chagas disease, or American trypanosomiasis, is a vector-borne parasitic infection caused by Trypanosoma cruzi, a flagellated protozoan (kinetoplastid) of the family Trypanosomatidae. The disease is endemic in Latin America, although cases are increasingly reported worldwide due to human migration. Transmission most commonly occurs when feces of infected triatomine bugs contaminate bite wounds or mucosal surfaces; additional routes include congenital, transfusional, transplant-related, and oral...
Giardiasis01:12

Giardiasis

Giardiasis is a globally prevalent intestinal infection caused by the protozoan parasite Giardia duodenalis (also known as G. lamblia or G. intestinalis). This flagellated protozoan is the most frequently identified intestinal parasite in the United States and worldwide. Transmission primarily occurs via the fecal-oral route, with infection arising from ingestion of water or food contaminated with cysts. Individuals in low-resource settings, international travelers, outdoor enthusiasts, daycare...