Rosai Dorfman disease Rosai-Dorfman disease (RDD) also called Rosai-Dorfman-Destombes disease or sinus histiocytosis with massive lymphadenopathy (SHML), is a rare benign non-Langerhans cell histiocytosis which is
Erdheim–Chester disease Erdheim-Chester disease (ECD) also known as lipid granulomatosis or polyostotic sclerosing histiocytosis, is a rare slow-growing blood cancer, a non-Langerhans cell histiocytosis neoplasm, which
What is Langerhans cell histiocytosis Langerhans cell histiocytosis (LCH) previously referred to as Hand‐Schuller‐Christian disease, Letterer‐Siwe disease, eosinophilic granuloma or histiocytosis X, is a rare
What is eosinophilic granuloma Eosinophilic granuloma now known as Langerhans cell histiocytosis, is a group of rare disorders in which too many Langerhans cells (a
What is ectopia lentis Ectopia lentis is defined as dislocation or displacement of the natural crystalline lens of the eye ((Nelson LB, Maumenee IH. Ectopia
What is Rh incompatibility Rhesus (Rh) incompatibility happens when your blood is Rh-negative and your baby’s blood is Rh-positive. This means your blood and your