. The pathological anatomy of the ear . s of primary epithelial cancer of the temporalbone, of which two have been reported, and in all ofthem the origin of the growth was the tympanic mu-cous membrane.^ Fig. 9 shows the extent of the destruction of thebone in one of these cases, seen from the inside. A list of all the malignant tumors known to me is confined tcfive cases described by Toynbee ^ (carcinoma), one by Gerliard ^(carcinoma of the left petrous bone), one by Billroth* (without au-topsy), two by Wilde ^ (osteosarcoma), one by Travers^ (without 1 Archiv f. Ohrenheilkunde, S. 208,
. The pathological anatomy of the ear . s of primary epithelial cancer of the temporalbone, of which two have been reported, and in all ofthem the origin of the growth was the tympanic mu-cous membrane.^ Fig. 9 shows the extent of the destruction of thebone in one of these cases, seen from the inside. A list of all the malignant tumors known to me is confined tcfive cases described by Toynbee ^ (carcinoma), one by Gerliard ^(carcinoma of the left petrous bone), one by Billroth* (without au-topsy), two by Wilde ^ (osteosarcoma), one by Travers^ (without 1 Archiv f. Ohrenheilkunde, S. 208, 215, Note. ^ Diseases of the Ear, cliap. xvii. ^ Jenaer Zeitschi., i., 4. * Klin. Chir., S G7. Compare also A. f. 0., v., S. 28. ^ Pract. Bernerliincjeiu etc., S. 244. 6 Frorieps Nutizen, Bd. 25, No. 22, S. 352. THE TEMPORAL BONE. 27 autopsy), one by Boeke/ one by Wishart,^ one by Robertson ^ (sar-coma). To these may be added three cases by Cruveilhier; * twoof these, althougli described under the name tumeurs fibreuses du. Fig. of the Temporal Bone by Epithelial Cancer, a. IMedian remnant ofthe pars petrosa ; on the superior surface of its apex the bone is also destroyedby the new growth, h. Porus acusticus internus. c. Foramen lacerum Foramen ovale, enlarged by destruction of its edges to twice its natural circum-ference, e. Foramen spinosum. f. Sphenoid articulation. i-ocher, Rokitansky considers sliould probably be regarded as can-cer, although in the first case, Avhich is the most fully described andfigured, Cruveilhier expressly adds, ne presentait pas le moindre 1 Wiener Med. Halle, 1863, Nos. 45, 46. 2 Edinh. Med. and Surg. Journ., xviii., p. 393. 3 Transactions of the American Otological Societi/, 1870. 4 Anatonde Palliohgique du Corps Humain, ii., xxvi., planche 2. 28 PATHOLOGY OF THE EAR. vestige de degeneration cancereuse, From a remark of Cruveil-hiers, it seems to be implied, that he had frequently found tumorsoriginating fro
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