Wednesday, September 26, 2012

DERMOID CYSTS

DERMOID CYSTS

These  are  cysts  situated  deep to the skin  and  there  is  no

punctum,thus the skin moves over the cysts.

 - They are either along lines of embryonic union (congenital) in

   the mid line and external angular dermoids

 - They can  also  occur on the palms of hands and  back  due  to

   puncture wounds and result  from  deep  implantation  of  skin

   elements (Implantation dermoid). 

Both varieties are filled with Sebum.

 

TREATMENT

Most dermoids cam be excised under local anaesthesia.The external

angular  dermoids  should  be preceded by  X-ray  to  exclude  an

intraceranial extension.
 
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