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To the Editor:
—In The Journal, Nov. 22, 1930, page 1588, G. A. Pagenstecher reports a case of "coccygeal" hernia. The anatomic boundaries he gives this hernia are those of posterior perineal hernia.He also states that "no case of coccygeal hernia is on record in the present literature." This statement is incorrect, and if allowed to stand may lead bibliographers into serious error. Though rare, there are several cases of posterior perineal hernia recorded in the literature, probably the earliest being Papen's case, described in a letter to Haller, in 1750 (Haller: Disputationes chirurgicae selectae, Laussannae 3: 313-316, 1755). Scarpa described the anatomy of posterior perineal hernia in his monograph Sull' ernia del perineo, Pavia, 1821.In 1924 I collected a number of these cases from the literature and made a special study of the anatomy of posterior perineal hernia, all of which is described and fully illustrated in
Watson LF. PERINEAL OR "COCCYGEAL" HERNIA. JAMA. 1931;96(9):710. doi:10.1001/jama.1931.02720350062028
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