The TWIPniks solve the case of the Man With Diarrhea and 100 Micron Objects In Stool, and discuss the reticulocyte receptor for Plasmodium vivax. Hosts: Vincent Racaniello, Dickson Despommier, and Daniel Griffin Become a patron of TWiP. Links for this episode: Reticulocyte receptor for Plasmodium vivax (Science) Image credit: Parasitic Diseases, 6th Ed. Parasite Heroine: Marietta Voge Letters read on TWiP 146 Case Study for TWiP 146 27 yo male lawyer comes NY area to be seen, has 4 cm ulcer on right foot. Painless, has raised borders, minimal surrounding erythema. Going on for quite a while. Initially was papule, enlarged, ulcerated, this enlarged and has been more than 4 weeks. No past med probs, allergic to penicillin but just upset his stomach. No meds. Social habits: drinking. Own apt in NYC. Travel: 1 month before papule was whitewater rafting in Costa Rica, noticed when he got back. Wore sandals, got lots of insect bites. Afebrile, normal BP, fit athletic young man. Non tender lesion, base is red, white fibrous coating. Border raised but not undermined. No surrounding swelling, no eschar over wound, open non healing. Send your case diagnosis, questions and comments to [email protected] Music by Ronald Jenkees

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