https://www.selleckchem.com/products/6-aminonicotinamide.html Drug reaction with eosinophilia and systemic symptoms (DRESS) syndrome is an important cause of multi-organ dysfunction and can mimic other disorders including sepsis. We describe a patient presenting with septic shock and accompanying high procalcitonin. Although initially treated empirically with antibiotics, the emergence of eosinophilia during the admission lead to a revised diagnosis of DRESS syndrome, presumed secondary to acetazolamide. This case highlights the importance of regular clinical assessment and re-evaluation is key in identifying emerging features such as eosinophilia, rash and organ dysfunction, which can secure the diagnosis. Furthermore, the case also highlights that acetazolamide may be a rare cause of DRESS syndrome.A 75-year-old man was admitted with a 3-month history of worsening diarrhoea and weight loss. He was on long-term immunosuppression following cardiac transplantation. Investigations revealed herpes simplex oesophagitis and stool samples were positive for norovirus. Treatment with acyclovir and nitazoxanide resulted in a complete resolution of symptoms. Norovirus is a common cause of infectious gastroenteritis, but immunosuppressed patients may present with chronic diarrhoea rather than an acute illness. This case highlights the importance of a low clinical threshold for testing for norovirus infection in immunocompromised patients.Pontocerebellar hypoplasia type 1B (PCH1B) describes an autosomal recessive neurological condition that involves hypoplasia or atrophy of the cerebellum and pons, resulting in neurocognitive impairments. Although there is phenotypic variability, this is often an infantile lethal condition, and most cases have been described to be congenital and neurodegenerative. PCH1B is caused by mutations in the gene EXOSC3, which encodes exosome component 3, a subunit of the human RNA exosome complex. A range of pathogenic variants with some correlation to