Lactose is the natural sugar found in cow's milk and the milk of other mammals such as goats and sheep. Lactose intolerance is when the digestive system can’t break down lactose. This causes unpleasant symptoms such as bloating, wind and diarrhoea.
Lambdoid craniosynostosis is a very rare type of non-syndromic craniosynostosis and occurs when one of the lambdoid sutures at the back of the head fuses before birth. This page from Great Ormond Street Hospital (GOSH) explains the causes, symptoms and treatment of lambdoid craniosynostosis and where to get help.
Landau Kleffner syndrome (LKS) is a rare epilepsy. It occurs in children usually between the ages of three and nine years and is characterised by loss of language skills and silent electrical seizures during sleep. It may be associated with convulsive seizures and additional difficulties with behaviour, social interaction, motor skills and learning. It is not usually life-threatening, but can impact greatly on quality of life unless it responds well to treatment. It occurs in approximately one child in a million. The disease is more common in boys and does not usually run in families.
Langerhans' cell histiocytosis (LCH) is a very rare condition with a high survival rate. Histiocyte cells normally help protect the skin, but sometimes the body has too many of them and they move around the body, causing damage.
Laryngeal papillomatosis is a rare medical condition in which benign (non-cancerous) tumours or growths form in the airway and voice box (larynx). They grow rapidly and can obstruct or block the airway, causing breathing difficulties.
A difference in the length of the arms or legs can occur for a number of reasons. Usually the shorter limb is abnormal, but this is not always the case, as sometimes the longer limb is the abnormal one.
This information from Great Ormond Street Hospital (GOSH) is for parents of children and young people undergoing assessment for possible lung or heart-lung transplantation. A transplant is a serious operation and is not without risk. A transplant can be the only effective treatment option for certain serious lung diseases; however, it is not a cure. In many situations transplantation can lead to an extension of life with improved quality.