Clinical spectrum of gross haematuria following SARS-CoV-2 vaccination with mRNA vaccines.

Background: Novel messenger RNA (mRNA)-based vaccines play an important role in current vaccination campaigns against SARS-CoV-2. They are highly efficacious and generally well tolerated. Vaccination in patients with immune-mediated kidney diseases is recommended.

Predatory behaviour and taphonomy of a Jurassic belemnoid coleoid (Diplobelida, Cephalopoda).

We describe four complete specimens of the early squid-like cephalopod Clarkeiteuthis conocauda from the Toarcian Posidonienschiefer (Jurassic) each preserved with the bony fish Leptolepis bronni in its arms. Based on the arrangement of prey and predator, we suggest that the cephalopods caught and killed the fishes while still in well-oxygenated waters and then descended into oxygen-depleted water layers (distraction sinking) where the cephalopod suffocated. This explains the exceptional preservation, for which the Posidonienschiefer is famed.

Iatrogenic nephrocalcinosis with acute renal failure: an underestimated complication after parathyroidectomy?

Hypocalcaemia often occurs in patients after parathyroidectomy (PTX) due to hypoparathyroidism and/or hungry bone syndrome. To avoid hypocalcaemia, patients are substituted with large doses of calcium and vitamin D. Here, we present four patients, who developed acute renal failure with hypercalcaemia and/or histologically confirmed nephrocalcinosis after PTX due to oversubstitution with vitamin D analogues and calcium.