Wednesday, March 19, 2008

Achondroplasia



Achondroplasia is a disease that is caused by a mutation in the gene FGFR3 fibroblast growth factor receptor 3 gene. Its meaning is "without cartilage formation." It is sometimes inherited, but usually occurs at time of conception. This mutation affects the growth of bone. People affected by this disorder are short statured and have an average height of 4foot 4 in males and 4 foot 1 in females. Appearance wise, these people tend to have disproportionate arms and legs, a large head, and a prominent forehead.

This condition can be found through DNA testing for parents with it, an ultrasound may also show it before birth. Most of the time, the features are visible from birth but it is evident on a x-ray and many times a bone study is performed. As of now, there is no treatment achondroplasia. People who have achondroplasia are more than capable of living healthy lives. Although, they do tend to have ear infections commonly and troubles with obesity. Infants may have weak muscles and a delay in walking and other motor skills.

Monday, March 17, 2008

Angiofibroma


An angiofibroma is a benign tumor filled with fibrous tissues. This tumor grows in the nasal cavity. It often times called juvenile nasopharyngeal angiofibroma because it is most common in adolescent males. The peak age is usually around 15. Some of the symptoms associated with this disease are nasal blockage of one side, bleeding of the nose, discomfort swallowing, headache, trouble hearing, and many others. One of the believed causes for this tumor occurring is hormones. There are many stages with this tumor.

Most of the studies that are done to diagnosis this problem are in radiology. A general x-ray may show it, but CT and MRI show them the best. Treatment may include hormonal therapy, radiotherapy, and the most common is surgery.