Multiple choice Which among the following is a causative agent of swamp cancer, especially in horses? Conidiobolus coronatus Basidiobolus ranarum Apophysomyces elegans Pythium insidiosum Shizophyllum Reveal answer Fill a bubble to check yourself D Correct answer Explanation Pythium insidiosum is the causative agent of swamp cancer, especially in horses, mainly in wet tropical environments. Infections are characterised by tumour-like masses which develop mostly on the legs.