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 Mirizzi syndrome Mirizzi syndrome is a rare condition caused by the obstruction of the common bile duct or common hepatic duct by external
Patella fracture A patella fracture is a break in the patella or kneecap, the small bone that sits at the front of your knee (see
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
Rhesus disease Rhesus disease also called Rh incompatibility or Rh disease, is a dangerous kind of anemia. Anemia is when a person doesn’t have enough
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
What is Rh factor Rh factor also called Rhesus factor is a protein (a type of antigen) that’s found on some people’s red blood cells. The Rh
What is lymphangioleiomyomatosis Lymphangioleiomyomatosis (LAM) is a rare progressive multisystem disease that affects the lungs, the kidneys, and the lymph nodes, found almost exclusively in
What is lung abscess Lung abscess is a pus-filled cavity in the lung surrounded by inflamed tissue and caused by an infection. Lung abscess is
What is fungal pneumonia Fungal pneumonia is an infectious process in the lungs caused by one or more endemic or opportunistic fungi. Fungal infection occurs