Occasionally, the presence of larvae stimulates the granuloma formation responsible for the deleterious effects of ocular toxocariasis.
Diagnosis is performed by histological examination of the tissue and the characteristic lesion is a granuloma surrounding a larva.
They are also postulated to stimulate other cells for granuloma formation.
The reason for partial recovery is that the healing process produces scarring and granuloma formation, known as neuroma.
By 60 days post-infection eggs were regularly seen and livers contained egg granulomata.
Histological examination of the resected aneurysm revealed myocardium which was almost totally replaced by dense fibrous tissue and numerous caseating granulomata.
The granulomas and necroses were usually located in the tissue adjacent to the peritoneum.
In the late stages (cutaneous scars), fibroblasts proliferated at the periphery of and finally invaded the granulomas with fibrotic substitution (data not shown).
