Pityriasis lichenoides in a family

cin, and also by thrombosis of the right femoral vein, treated by anticoagulation. On admission the serum inorganic phosphate was 0-67mmol/l (0-8-1-4). serum albumin 43g/I. and serum calcium (Ca'*) 2-22 mmol/l. correcting to 2-16mmoI/l (2-12'6). Three days after admission, she became profoundly hypocalcaemic, with a corrected serum Ca^^ of l-76mmol/l. At this time, the serum magnesium was 0-7mmol/I (0-1rOmmol/1). the intact parathyroid hormone (PTH) level was l l n g / I (10-55 ng/I), and the serum amylase was normal. Although the hypocalcaemia did not produce any symptoms. intravenous supplements of 2-3 g calcium per day were administered to maintain normocalcaemia. She required parenteral calcium for 6 days.