. Some points in the surgery of the brain and its membranes . Fig. 175. Fig. 176. Figs. 175 and 176.—Sarcoma of frontal lobe perforating dura and frontal bone. Photographs of patient before operation. 326 SOME POINTS IN THE SURGERY. Fig. 177.—Photograph of external surface of the portion of skull, after maceration,removed at the operation. a, b, median line. The measurements were 6 inches from before backwards, and 5 inches from sideto side 5 but when the tape was laid on the curve, the measurements were 7f inchesand 8 inches. Measured by callipers the thickness of bone in the centre wasi^ inc
. Some points in the surgery of the brain and its membranes . Fig. 175. Fig. 176. Figs. 175 and 176.—Sarcoma of frontal lobe perforating dura and frontal bone. Photographs of patient before operation. 326 SOME POINTS IN THE SURGERY. Fig. 177.—Photograph of external surface of the portion of skull, after maceration,removed at the operation. a, b, median line. The measurements were 6 inches from before backwards, and 5 inches from sideto side 5 but when the tape was laid on the curve, the measurements were 7f inchesand 8 inches. Measured by callipers the thickness of bone in the centre wasi^ inches. Note the coral-like appearance of the bone, due to infiltration with new growth. OF TUMOUR OF THE BRAIN 327
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