Opportunistic pulmonary strongyloidiasis complicating asthma treated with steroids.

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Abstract
A man aged 57 years who had lived most of his life in London, suffered from asthma which had begun during army service in Burma 37 years previously. Latterly he was treated with increasing doses of corticosteroids but his symptoms continued to worsen and he died of asthma. Necropsy revealed a heavy opportunistic infection of the bronchi and lungs by the nematode Strongyloides stercoralis which he had presumably acquired while on service abroad. The case illustrates the need, even in non-endemic areas, to suspect opportunistic pulmonary strongyloidiasis when a patient's asthma worsens despite treatment with increasing doses of corticosteroids. Although it is a potentially lethal iatrogenic opportunistic infection, it is amenable to treatment with anthelminthic agents if recognized in time.