[Congenital dermoid cyst over the anterior fontanelle: case report]

T Isozumi, A Tsuji, S Nakasu, M Matsuda, J Handa
No Shinkei Geka. Neurological Surgery 1995, 23 (5): 423-7
We report a case of a 35-month-old Japanese boy harboring a dermoid cyst in the region of the anterior fontanelle, which is rarely reported among Japanese. A small soft subcutaneous mass was noticed in the mid-frontal region at the age of 6 months. On admission, a soft, nontender round mass (2.5cm in diameter) was located over the anterior fontanelle. Transillumination was negative. Neurological examination yielded normal findings. MRI showed a well-circumscribed mass, which was slightly hypointense on T1W1 and hyperintense on T2W1. Midsagittal MRI showed no intracranial extension. At operation, a well-encapsulated mass was found beneath the pericranium, which was easily dissected from the underlying dura mater and removed. The tumor contained caseous material and several hairs. Microscopically, the cyst wall consisted of connective tissues lined by stratified squamous epithelium. Sebaceous glands and hair follicles were found in the subepithelial layer. It is important to confirm preoperatively whether or not the extracranial mass extends into the intracranial cavity. For this purpose, midsagittal or coronal MRI seems to be most useful.

Full Text Links

Find Full Text Links for this Article


You are not logged in. Sign Up or Log In to join the discussion.

Trending Papers

Remove bar
Read by QxMD icon Read

Save your favorite articles in one place with a free QxMD account.


Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"