Tuesday, October 27, 2009

Mucous Cyst



Mucous Cyst

A mucous cyst is a thin painless sac on the inner surface of the lips. It contains clear fluid. The sac is bluish clear in color. The sac can occur on the inside of the lip, tongue, palate, inside the cheeks, the floor of the mouth, or around tongue or lip piercings. A mucous cyst often can be left alone. Normally a mucous cyst will rupture spontaneously. Opening the top of the sac with a sterile needle will help it go away. If the cyst returns, it may need to be removed surgically. Oral surgeons and some dentists can easily remove the sacs if they continue to cause discomfort. Mucous cysts are common. Sucking the lip membranes into the teeth are thought to cause cysts. When the cysts are positioned on the floor of the mouth they are called ranula, when positioned on the gums they are called epulis. There is no known prevention for mucous cysts. They are diagnosed by visual examination.

ACHONDROPLASIA
Achondroplasia is a disorder of bone growth that causes the most common type of growth hormone deficiency. Achondroplasia is a genetic condition that results in abnormally short stature and is the most common cause of short stature. Although Achondroplasia means “without cartilage formation,” the defect in achondroplasia is not in forming cartilage but in converting it to bone, particularly in the long bones. Achondroplasia is one of the oldest known birth defects. Symptoms of Achondroplasia may include bowed legs, decreased muscle tone, disproportionately large head to body size ratio, prominent forehead, shortened arms and legs, short stature abnormal hand appearance, and spinal stenosis. People with achondroplasia seldom reach five feet in height. Infants who receive the abnormal gene from both parents do not often live beyond a few months. Complications may include clubbed feet and hydrocephalus (fluid build up in the brain).



T1 weighted MRI image of a child with Achondroplasia.