Scrub typhus is an acute febrile disease caused by infection with Orientia tsutsugamushi, and is characterized by focal and disseminated vasculitis that can involve many vital organs [1-3]. The spectrum of clinical severity for scrub typhus is vast, ranging from mild infection to a severe and fatal course [1-3]. Depending on the organs involved, patients may present with pneumonitis, acute respiratory distress syndrome, meningitis, myocarditis, acute kidney injury (AKI), or even multiple organ failure

Coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused the ongoing global pandemic. It can manifest a wide range of complications depending upon the severity of infection and comorbidities of the patient. Vaccines are very important measure to provide protection against COVID-19. We report a case of 73-year-old female who underwent [¹⁸F]F-2-fluoro-2-deoxyd-glucose (FDG) positron emission tomography/computed tomography (PET/CT) and contrast-enhanced CT for staging of her rectosigmoid colon cancer and was found to have hypermetabolic uptakes in the deltoid muscle of the left shoulder and hypermetabolic left axillary and supraclavicular lymph nodes due to adenovirus vectored vaccine (ChAdOx1 nCoV-19, AstraZeneca) administrated 18 days ago prior to PET/CT scan.

Tailgut cysts are known to originate from the remnants of the embryonic hindgut. They occur exclusively in the retrorectal and presacral spaces. There have been limited reports of tailgut cysts occurring in the left perirenal space. The present case features a huge tailgut cyst extending from the right perirenal to the perivesical space. We believe that this case report will help to further elucidate the characteristics of perirenal and perivesical tailgut cysts.