Custom Search



Infectious Disease Online

Pathology of Visceral Larva Migrans

Dr Sampurna Roy MD




Syn:  Larva Migrans Visceralis, Ocular Larva Migrans, Toxocariasis.

Visceral larva migrans, also known as toxocariasis, is an infection of deep organs by   larval stage of various animal parasites migrating in the host. 

Related post:  Cutaneous larva migrans

Toxocarias is a sporadic disease, primarily of young children, that is often found in areas where there are overcrowded dwellings, dogs and cats.

Toxocara species are the most common cause of visceral larva migrans (Toxocara canis and Toxocara cati are common roundworms of dogs and cats), but other parasites, such as Ancylostoma, Strongyloides stercoralis , Baylisascaris (Nematode), Spirometra (Crestoda), and Alaria (Trematoda), can also cause the disease.

Hookworm Infection

Typical patient is a child with hypereosinophilia, pneumonitis, hypergammaglobulinemia.

Ocular visceral larva migrans is a distinct entity.

The chief complaint is decreased vision in one or both eyes, and failure to treat ocular lesions may lead to retinal detachment.

Generally, as with all forms of the disease, the infection is self-limited and symptoms disappear within a year.

A presumptive diagnosis can be made serologically.

Both diethylcarbamazine and thiabendazole are used to treat visceral larva migrans.


Further reading:

Visceral larva migrans with cardiac manifestation: A case report and literature review.]

Alteration of cytokine production during visceral larva migrans by Toxascaris leonina in mice.

Visceral larva migrans presenting as multiple liver abscesses.

Hepatic visceral larva migrans.

Visceral larva migrans presenting with hypereosinophilia.

Eosinophilic myocarditis associated with visceral larva migrans caused by Toxocara canis infection.

Visceral larva migrans associated with earthworm and gecko ingestion: a case report.

Visceral larva migrans presenting as acute abdomen in a child.

Visceral larva migrans associated with earthworm ingestion: clinical evolution in an adolescent patient.

Visceral larval migrans masquerading as metastatic disease in a toddler with Wilms tumor.

Eosinophilic abscesses: a new facet of hepatic visceral larva migrans.

Longitudinal myelitis caused by visceral larva migrans associated with Toxocara cati infection: case report.



Dr Sampurna Roy  MD

Consultant  Histopathologist (Kolkata - India)






Infectious Disease Online


Pathology Quiz Online 


Paediatric Pathology Online


Pancreatic Pathology Online




Endocrine Pathology Online


Eye Pathology Online


Ear Pathology Online


Cardiac Path Online


Pulmonary Pathology Online


Lung Tumour Online




Nutritional Pathology Online


Environmental Pathology Online


Soft Tissue Tumour Online


GI Path Online-India


Gallbladder Pathology Online


E-book - History of Medicine  


Microscope - Seeing the Unseen






Privacy Policy  

Advertising Policy

Copyright 2019