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Leo M. Davidoff, M.D.; H. T. von Deesten
JAMA. 1935;105(11):873-874. doi:10.1001/jama.1935.92760370001012.
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Lereboullet1 in a monograph on the tumors of the fourth ventricle reviews all the cases of dermoid and epidermoid tumors and cysts in the posterior fossa that he has been able to find reported in the literature. According to him, only nine dermoid and eight epidermoid cysts of the posterior fossa have been recorded. Of these, only one of each has been reported as operated on successfully: a dermoid cyst overlying the vermis of the cerebellum, reported by Brock and Klenke2 (operated on by Elsberg), and an epidermoid tumor, reported by Van Bogaert and Martin3 (operated on by Cushing).

In view of the rarity of these tumors, their greater rarity in this location, and the extremely rare cure of the condition by surgery, the following successful surgical case is reported.


History.  —J.J. L., a man, aged 42, a lawyer, admitted Nov. 5, 1934, complained of


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