Langerhans cell histiocytosis (LCH)

Langerhans cell histiocytosis (LCH) is a rare condition where the body produces too many Langerhans cells, which are part of the immune system. These cells can accumulate in various organs, such as bones, skin, and lungs, leading to inflammation and damage. Symptoms vary widely but may include bone pain, skin rashes, or respiratory issues. LCH can affect anyone but is most common in children. Treatment often involves medications to reduce symptoms and control cell production, and in some cases, chemotherapy or radiation may be necessary. The outlook depends on the severity and areas affected.