The symptoms of<unk>  vary depending on the bones involved. It may affect any part of the skeleton, but the most common sites of<unk>  are the shoulder, skull, pelvic girdle, jaw, ribs, and spine. In some cases, no symptoms are seen until a fracture occurs either spontaneously or following minor trauma, such as a fall. An acute onset of localized pain and swelling may occur. More commonly, pain of no apparent cause increases in frequency and intensity over time and may eventually be accompanied by weakness and noticeable deformity of the area. The rate of progression is unpredictable, and the prognosis can be difficult. The<unk>  may stabilize after a number of years, go into spontaneous remission, or in cases involving the chest and upper spine, prove fatal. Recurrence of the<unk>  following remission can also occur. Involvement of the spine and skull base may cause a poor outcome from neurological complications. In many cases, the end result of<unk>  is severe deformity and functional disability. Symptoms such as difficulty breathing and chest pain may be present if the<unk>  is present in the ribs, scapula, or thoracic vertebrae. These may indicate that the<unk>  has spread from the bone into the chest cavity. The breathing problems may be misdiagnosed as asthma, because the damage done to the lungs can cause the same types of changes to lung function testing as seen in asthma. Extension of the lesions into the chest may lead to the development of chylous pleural and pericardial effusions. Chyle is rich in protein and white blood cells that are important in fighting infection. The loss of chyle into the chest can have serious consequences, including infection, malnutrition, and respiratory distress and failure. These complications or their symptoms, such as difficulty breathing, chest pain, poor growth or weight loss, and infection have sometimes been the first indications of the condition.
Gorham's disease
Darier's disease
Chandler's disease
Texier's disease
Camisa disease
Milroy's disease
Minor's disease
Tornwaldt's disease