Sections of liver and lung from several animals showed the characteristic pathology associated with schistosomal egg granulomata.
Lesions appeared as small firm grey-white nodules characteristic of schistosome egg granulomas.
According to findings, cases were grossly classified as noninfectious (lymphoproliferative) and chronic infectious (caseating granulomata).
When many females were present, however, fibrous changes with granulomata surrounding eggs usually occurred in the lungs.
The infant was extubated after surgical excision of laryngeal granuloma and discharged 1 month later.
The lung biopsy showed numerous focal granulomata full of histocytes, lymphocytes, polymorphs and eosinophils with infrequent giant cells.
Alterations consisted of thickened air sac walls (fig. 1e), lesions or granulomata at the site of worm attachment, sometimes involving underlying tissues.
In the late stages (cutaneous scars), fibroblasts proliferated at the periphery of and finally invaded the granulomas with fibrotic substitution (data not shown).
