What lies beneath a maggot infestation of an ulcerated foot wound?

Abstract

We present here the case of a 55-year-old male patient with a past medical history of HIV infection on appropriate antiretroviral therapy (Bictegravir/Emtricitabine/Tenofovir Alafenamide), previously treated for hepatitis C with sustained viral response, who was diagnosed with squamous cell cancer of his right hand 2 years before, and treated with carboplatin and taxol, and surgery (partial amputation) for cancer progression and recurrent infections. He presented to our emergency department for worsening pain (NRS 10/10) of a suppurative and foul-smelling interdigital ulcerated lesion of his left foot, that had been present for 3 months. He reported 100% adherence to his HIV therapy and denied fever or chills. Initial work-up showed 10,690/mm3 leukocytes (8,240/ mm3 neutrophils, 1,560/mm3 lymphocytes), and a C-reactive protein of 2.89 mg/dL (normal value 0-0.5). CD4 count on presentation was 225 cells/µL. The patient was immediately treated with morphine (10 mg iv) and piperacillin/tazobactam (4.5 gr iv).  The lesion presented erythematous ulcerated bleeding surface with serous and fetid secretion on which mobile larvae were found inside (as showed in the video). We removed about 20 maggots with blunt pliers, identified as larvae of Musca domestica (housefly).