Ectopic right coronary artery arising from the left sinus of Valsalva: A rare variant.

An ectopic coronary artery is observed in 0.05-0.1% of angiographic series, may be of tangential origin or proximal endocardial pathway, may result in a slit hole that interferes with flow, and is associated with sudden death.

Hypocalcemia and massive pulmonary embolism in SLE patient with COVID-19 infection: A case report.

A 16-year-old female patient presented to our ED with fever and coughing of blood for 3 days. She is known to have SLE for 5 months and takes oral prednisone. She was tested positive for COVID-19. She developed hypocalcemia with clinically diagnosed massive pulmonary embolism. She was treated with heparin and recovered.