Maria Nina ChitasombatPorkaew PetchkumSuthas HorsirimanontPattana SornmayuraAriya ChindampornTheerapong KrajaejunChulalongkorn UniversityFaculty of Medicine, Ramathibodi Hospital, Mahidol University2019-08-232019-08-232018-09-01Medical Mycology Case Reports. Vol.21, (2018), 57-62221175392-s2.0-85047557102https://repository.li.mahidol.ac.th/handle/20.500.14594/45978© 2018 The Author(s) Vascular Pythiosis caused by Pythium insiodiosum rarely involves carotid artery. A case of concealed ruptured pseudoaneurysm of the carotid artery with neck abscesses, and cerebral septic emboli is described. Patient presented with large pulsatile neck mass that failed to response to surgery, antifungals and immunotherapeutic vaccine. Residual unresectable disease leads to death in the patient. Pythiosis should be considered as a differential diagnosis of head and neck infection.Mahidol UniversityImmunology and MicrobiologyMedicineArticleSCOPUS10.1016/j.mmcr.2018.05.003