A 16-year-old male develops myopericarditis three days after a first mRNA COVID vaccine associated with mild left ventricular systolic dysfunction and evidence of myocardial fibrosis and oedema on multiparametric cardiac magnetic resonance imaging.

Case Report• A 56 year old lady presented to the endocrinology clinic following an incidental finding of hypercalcaemia (see Figure 2). She was normally fit and well, on no regular medication and had no significant family history.• Primary hyperparathyroidism was diagnosed. A solitary parathyroid adenoma was identified through parathyroid MIBI Scan. Renal calculi were present on US imaging.• Her hypercalcaemia progressed and sequelae of uncontrolled hypercalcaemia developed, requiring surgical intervention.• Unrelated investigation for suspected TIA identified a pituitary mass. MRI imaging revealed an intrasellar pituitary mass. Pituitary function tests confirmed a nonfunctioning pituitary macroadenoma (see Figure 2).• Presence of two primary MEN1 tumours required further investigation for the syndrome.• Fasting gut peptide profile showed raised gastrin levels. She denied use of proton pump inhibitors and had no symptoms of hypergastrinaemia. An MRI pancreas and subsequent octreotide scan failed to locate gastrinomas. Genetic analysis did not identify a germline mutation of the MEN1 gene.