Case of the Week 654

 This week ' s case is of a middle-aged man with a painful lesion on the dorsum of his foot. He recently returned from Brazil, during which he swam in the ocean, walked barefoot on the beach, and ate local foods. An excisional biopsy was performed and submitted to the clinical microbiology lab to rule out a possible parasite. The specimen received was an excised ellipse of skin on which there was a central defect measuring ~ 5 mm in diameter:There was also a separate section of subcutaneous tissue, which contained numerous tan-white ovoid objects:Here is a close-up of these objects:To confirm our suspected diagnosis, we serially sectioned the skin and submitted the sections for histopathologic processing. Here are a couple of images from the H&E stained slides (using the 4x and 10x objectives):Identification?
Source: Creepy Dreadful Wonderful Parasites - Category: Parasitology Source Type: blogs