### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I developed ripples in my scull . The MRI shows non problematic lesions . 3 started in the middle about 3/8 wide by 3 long , then smaller ones on the sides 1/4 by 1 1/2 , this week connecting diagonal also about 3/8 wide . I first noticed it in October . What is it and why ?

### output:

Hi and pleased to answer youth ripples noticed are ridges of skull surface. This deformity is found in a disease called Cuts vertices gyrate. Cuts vertices gyrate (CVG), of the scalp, is a rare and progressive skin disease of the scalp. It is characterized by hypertrophy and cutaneous hyperlaxity forming folds similar to the gyri of the cerebral cortex. The patient may present a deformation of the scalp with numerous longitudinal and transverse folds with social and aesthetic discomfort. A surgical resection of the cutaneous excess in a transverse and longitudinal plane is carried out. The treatment of this disease is surgical, by the excision of the skin folds and re-tensioning of the scalp. The number and location of the incisions must preserve the revascularization of the scalp and take into account the evolutionary character of this pathology. Cutis vertices gyrate (CVG), or articulated pachyderm of the scalp, is a rare and progressive condition of the scalp and / or facial skin. It is characterized by hypertrophy and cutaneous hyperlaxity forming folds similar to the surface of the cerebral cortex. These folds can be the cause of an aesthetic, social and functional discomfort (maceration, infection). This disease was reported for the first time by Albert in 1837 under the term of "cuts sulfate". A dermatologist consultation may help you. Best wishes.