Basidiobolomycosis | |
---|---|
Basidiobolus ranarum: causative organism | |
Specialty | Infectious disease[1] |
Symptoms | Firm painless nodule in skin,[2] tummy upset[3] |
Complications | Spread to local structures[2] |
Usual onset | Gradual/slow[2] |
Causes | B. ranarum[2] |
Diagnostic method | Medical imaging, biopsy, microscopy, culture, histopathology[2] |
Differential diagnosis | Inflammatory bowel disease[2] |
Treatment | Antifungals, surgery[4] |
Medication | Amphotericin B[4] |
Frequency | Rare[3] |
Basidiobolomycosis is a fungal disease caused by Basidiobolus ranarum.[1][5] It may appear as one or more painless firm nodules in the skin which becomes purplish with an edge that appears to be slowly growing outwards.[3][5] A serious but less common type affects the stomach and intestine, which usually presents with abdominal pain, fever and a mass.[3]
B. ranarum, can be found in soil, decaying vegetables and has been isolated from insects, some reptiles, amphibians, and mammals.[2] The disease results from direct entry of the fungus through broken skin such as an insect bite or trauma, or eating contaminated food.[1][3] It generally affects people who are well.[2]
Diagnosis is by medical imaging, biopsy, microscopy, culture and histopathology.[2] Treatment usually involves amphotericin B and surgery.[3][4]
Although B. ranarum is found around the world, the disease Basidiobolomycosis is generally reported in tropical and subtropical areas of Africa, South America, Asia and Southwestern United States.[3] It is rare.[3] The first case in a human was reported from Indonesia in 1956 as a skin infection.[4]
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