Severe diffuse proliferative bronchiolitis complicating culture-proven disseminated BCG infection after intravesical instillation for bladder cancer.

A man in his 70s was admitted to hospital following several months of dyspnoea, night sweats, weight loss and, latterly, fevers. His symptoms correlated with a second maintenance cycle of intravesical BCG instillation for superficial bladder cancer. Blood tests showed raised C-reactive protein, alkaline phosphatase and gamma-GT, although extensive further investigations did not reveal any specific cause.

Lessons of the month 1: Longitudinal extensive transverse myelitis following AstraZeneca COVID-19 vaccination.

Longitudinal extensive transverse myelitis (LETM) is a rare but recognised complication of vaccination. We report the case of a 58-year-old man admitted to hospital 10 days after his first AstraZeneca COVID-19 vaccination with progressive neurological symptoms and signs, and investigations and imaging consistent with LETM.This case reviews the literature and the investigative process behind excluding other diagnoses given the patient's background of pulmonary sarcoidosis.

Error analysis of collimated and uncollimated SeHCAT retention measurement using a gamma camera.

Aim: There is increasing interest in using collimated gamma cameras for [75Se]tauroselcholic acid (SeHCAT) studies to image the distribution and to make use of the collimator pressure sensitive devices (PSD) for patient safety. However, the use of a collimator will substantially decrease the sensitivity of the gamma camera. The aim of this article is to enable departments to calculate the uncertainty of SeHCAT retention measurements so that the acquisition time can be optimised to perform a reliable SeHCAT study.