Commentaries on the Surgery of the War in Portugal, Spain, France, and the Netherlands / from the battle of Roliça, in 1808, to that of Waterloo, in 1815; with additions relating to those in the Crimea in 1854-55, showing the improvements made during and since that period in the great art and science of surgery on all the subjects to which they relate.

by G. J. Guthrie

LECTURE XIX.

TUMORS OF THE SCALP, ETC.

276. When the periosteum covering the bone is bruised, or the bone is merely deprived of this membrane, it does not follow that it should die or exfoliate. In many instances the wound will gradually close up and heal, as if no such accident had happened. A blow or bruise on the head often gives rise to a swelling or tumor, from the rupture of the small vessels passing into the cellular membrane between the scalp and the pericranium; the tumor in these cases appears immediately after the receipt of the injury as a soft swelling, and is usually found to contain blood, which in most instances is removed by absorption in the course of from two to three weeks. In some cases inflammation supervenes, and one part becomes tender and appears to point; into this a small incision should be made to allow the blood and matter to escape, when gentle compression should be resorted to in order to induce the parts to unite. Swellings of this kind in new-born infants, occurring from pressure during delivery, may be readily mistaken for deficiencies of the occipital and parietal bones, if it were not for the absence of all motion, which under such circumstances would be communicated to them from the brain. The blood effused in the cellular membrane raises the border of the swelling, which becomes harder than the neighboring parts, while the center remains soft and yielding, giving a sensation to the finger as if the bone beneath were wanting, or, after a blow, the idea that the bone beneath is depressed. If such a swelling be unnecessarily opened, considerable inflammation and suppuration will often follow, to the great inconvenience of the patient; this will in general be avoided by the use of a moderately stimulating cold lotion.

277. In other cases of tumors, which are called secondary in contradistinction to the preceding, the patients go on well for eight, nine, or more days, at the end of which time they complain of headache, giddiness, nausea, restlessness, thirst, and generally of fever. A few days more, frequently from the thirteenth to the fifteenth day, rigors, sometimes severe, are superadded, and a swelling, if not observed before, is now perceived on the spot where the injury had been received, if the integuments have not been divided; or, if there be a wound, it loses its healthy red appearance, and assumes a yellowish, unhealthy color, which is accompanied by a thinner and more acrid discharge. From this time the symptoms gradually increase, the patients become delirious, convulsed, comatose, and die; and matter is found between the skull and the dura mater, or in or on the substance of the brain. If this secondary swelling be divided, and the fluid evacuated, which is not good pus, the pericranium will be found detached and the bone bare.

It has been stated that a bone so circumstanced would not be found to bleed on being scraped, and that, by attending to the want of hemorrhage from the outside of the cranium, the extent of the evil might be ascertained, and that so long as a denuded, discolored bone will bleed on being scraped, it may be considered that the dura mater is attached below, and that no operation should be performed.

The essential difference between the primary and the secondary swellings is to be found in the fact that, although the bone be exposed, and even in some degree may have changed its color in the primary swelling when matter has formed, the febrile symptoms will subside after its evacuation, healthy granulations will spring up, and little or no exfoliation will take place. In the secondary swelling none of these favorable symptoms or appearances will take place, for the bone is incapable of maintaining its life, and must die. If the outer table only be implicated, it may exfoliate; but if there be reason to believe that matter has collected beneath, on the dura mater, the bone should be removed by the trephine.

Inflammation of the dura mater proceeding to suppuration, or the formation of matter between it and the bone, appears to have been a much more common consequence of injuries of the head in former times than at present. It is not now of frequent occurrence in London hospitals.

As blows on the head and the structure and functions of the brain are the same at present as formerly, the difference in regard to such cases can only depend on the difference of treatment. It is, in fact, infinitely more depletory now, and therefore less operative. Blood is taken away in larger quantities, although to this there are exceptions, depending on the constitution of the patient, which will not always admit of it, while the potassio-tartrate of antimony and mercury are by most surgeons administered at an early period.

Suppuration, or the formation of pus on the surface of the dura mater, not being, under the strictly antiphlogistic and mercurial system, so common as formerly, sufficient attention has not perhaps been paid to another evil which frequently accompanied it in former times, viz., suppuration on the surface and in the substance of the brain itself; for the greater number of those who died with fracture and depression of the skull, and whose cases are recorded, suffered also from alteration of the structure or substance of the brain, and the formation of matter within it or upon its surface. This termination might not have taken place in a large proportion of the cases in which it occurred if the depressed bone had been raised to its level, and the irritation arising from undue or unequal pressure had been avoided. It must be admitted, however, that an internal part of the brain may receive such a shock at the moment of injury, as well as an external part, that no treatment can arrest the progress of the mischief, although it may be delayed; and when the patient dies, after four, five, or more weeks of alternate hope and suffering, matter may be found in some part of the brain where an injury was not suspected.

Purulent matter may be formed beneath the dura mater in a confined spot, or it may be diffused generally over the surface of the brain, in which case the sufferer has no chance of relief.