The absence of the usual train of head symptoms, and the length of time which so extensive an injury permitted life to remain, render this case worthy of some remark.
FREDERIC WALL,
Surgeon, 38th Regiment.
Camp before Sebastopol, Sept. 20, 1855.
Private William Doyle, 19th Regiment, aged nineteen years, was wounded in the head by a rifle-ball, in the advanced trench of the right attack, on August the 30th. The scalp and pericranium were cut about two inches, and a portion of the cranium, a little in advance of the posterior and superior angle of the right parietal bone, close to the sagittal suture, about an inch in length and half an inch in breadth, was depressed. According to statement the man was rendered perfectly senseless and motionless, from the instant of being struck by the bullet. On reaching camp he presented all the usual symptoms indicating compression; pupils dilated and fixed, warm surface, total unconsciousness, complete paralysis, etc. On examination of the depressed portion of bone, no opening whatever could be felt; the edges of the sunk bone and the bone adjoining were in contact, and it was presumed to be an ordinary case of fracture with depression simply. Some very minute portions of cerebral substance were observed to be mixed with the clot of blood about the wound, such as might be squeezed through a fissure. Trephining being determined on, it was performed at once, and the depressed bone raised without difficulty. No relief of symptoms followed. The dura mater bulged slightly upward into the opening. On passing the finger over its surface, a little beyond the space exposed by the trephine, a defined cut edge was felt about an inch in advance of the depressed piece of bone, being the boundary of an opening into the cerebral substance.
Three hours after arrival in camp the patient died. On examination post-mortem, a wedge-like section of the ball was found to have entered and penetrated the cerebral substance; it was discovered in the anterior lobe on the right side, just above the orbitar plate. It had not completely penetrated, but was lying just above the membrane covering the lobe. The ball—a conical rifle-ball with three cannelures—was cut smoothly from apex to base, as if by a sharp knife. This must have been done by the edge of broken bone above the opening made in the parietal bone, one-half of the ball flying off, the other entering the skull. On close examination, several very small points of lead were found to be imbedded along the margin of the bone alluded to. The depressed portion of bone, directly after the piece of ball entered, must have sprung up again by its own resiliency, or been forced up by sudden pressure from within, so that no evidence of an aperture, but merely a fissure and depression remained. The inner table was separated, and nearly detached, for a space rather more extensive than that of the depressed part of the outer table. The superior longitudinal sinus was wounded by the sharp edge of the broken inner table, and a very considerable quantity of blood extravasated upon the surface of the brain.
The portion of bone implicated in this injury has been preserved.
THOMAS LONGMORE,
Surgeon, 19th Regiment.
Camp before Sebastopol.