Pliny attributes it to the corruption of the water. (xi, 37.)
Rolandus, Guy of Cauliac, and other of the earlier modern authorities, direct us to remove the tumour by means of two cross setons.
SECT. XXXIX.—ON GANGLION.
A ganglion is a round tumour of a tendon, arising from a blow or violent exercise, being formed most frequently about the wrists, ankles, and the parts about a joint which are much moved, but likewise in the other parts. It is attended with a swelling, which is free from discoloration, unyielding, and without pain, but if strongly pressed upon it has a dull feeling. It is not deep-seated, but takes its origin under the skin, and may be moved laterally, but cannot by any means be forced forwards or backwards. Those then which form in the legs, arms, and extremities it is not safe to cut out, for there is danger lest the part be mutilated. But those about the head or forehead we operate upon by dividing the skin with a scalpel, and if the tumours be small, seizing them with a flesh forceps and cutting them out by the roots. But if they are larger, we transfix them with hooks, and remove them by dissecting them from the skin, and uniting the lips with sutures, complete the cure by the treatment applicable to fresh wounds.
Commentary. We have treated of ganglion in the [Fourth Book], and mentioned the principal authorities on the subject. Hippocrates and most of the others forbid ganglia to be opened. The hard tumour on the head, to which likewise he applies the name, may safely be removed in the manner described by our author. Albucasis repeats his directions. (Chirurg. ii, 50.)
Haly Abbas recommends discutients at first, and if these have not the desired effect we are to strike the tumour with a hard body so as to break its cyst. (ix, 10.)
Rhases recommends striking the tumour with a hammer, binding a piece of lead on it, and excision. When excision is practised he directs us to take pains to extirpate the cyst or tunic which surrounds it. (Cont. xxviii.)
SECT. XL.—ON VENESECTION.
Although the mode of performing venesection be known to everybody, yet, in order that no part of surgery may be omitted, and for the sake of its technical distinctions, it must not be overlooked by us. The first object then in venesection is the evacuation of a fulness of blood. It has been shown that fulness of blood is of a twofold nature: first, with regard to the strength, although the veins do not appear full, in which case those affected soon become weak and enervated, nature not being able to support, as it were, the load; and second, with regard to the containing vessels, as is seen in the parenchymatous parts, in which case, although the strength seems able to support the fulness without stress, the vessels sometimes burst, and a spitting of blood or some other discharge takes place. Plethora then as regards the strength may be ascertained from the heaviness upon the body; and plethora of the veins from their distension and from their appearing full. In both cases evacuation is indicated; and, therefore, if necessity require, you must bleed on the first attack of the disease, waiting only for the digestion of the food in the stomach, or the complete sanguification thereof in the liver. But if on any account venesection has not been had recourse to in the beginning, and has been postponed until after the seventh day, there will be no impropriety of bleeding even then when necessity requires it, and the strength does not contra-indicate. But when about to let blood it is necessary to ascertain that there be not a great obstruction of fæces in the intestines, and, if there be, the bowels ought first to be evacuated by an emollient clyster, lest the veins of the intestines suck in the putrid matter of the excrements. Those requiring the abstraction of blood from the presence of a disease we may bleed at any season, avoiding only the acme of particular paroxysms in fevers. But if it be a continual fever, the morning is by all means the fittest season for the operation. Those who require the evacuation of blood, not from the presence of any disease, but as a preventive, will find the spring the fittest season of the year. With regard to age, bleeding must not be practised before the fourteenth, nor after the seventieth year, unless some urgent necessity compel us. And upon the whole we must avoid bleeding those persons whose strength is reduced. In recent inflammations we must make the evacuation from the opposite parts, but in chronic from the adjoining. We abstract blood from many parts of the body, but more especially from the inner part of the elbow. But it is to be recollected that in general the artery lies below the inner vein called the alar; that below the middle one (median) there is a nerve; whereas the upper one, called also the humeral, is free from all risk. In diseases of the head we open the humeral, but in those below the neck, the alar. The median is applicable in both cases. Wherefore we must tie a narrow band around some muscular part of the arm, and having by friction of the hands upon one another produced the necessary fulness of the vein, we divide it transversely, but only along its breadth; for larger incisions than this are difficult to heal, whilst those which are very narrow occasion inflammations by obstructing the passage of the thicker fluids. When we expect to have to abstract blood again on the second, third, and sometimes the fourth day, we must divide the vein more obliquely, in order that by bending the arm the incision may be kept open and not heal speedily. Such is the opinion of Antyllus. The quantity of the evacuation must be determined by the strength of the patient and the magnitude of the disease. When, therefore, there is a humeral plethora, and the matter is in a state of inflammation, we are to make our evacuations to deliquium animi, provided the strength be firm, and the patient does not swoon from an overflow of the humour upon the stomach. Wherefore many at the commencement fall into deliquium animi before a sufficient evacuation has taken place, and, therefore, the deliquium must be judged of from the measure of the evacuation. If there is a necessity for much evacuation, and the strength is weak, we must husband the evacuation, and making the first abstraction in small quantity, bleed again, or even a third time, if required. We have recourse to general evacuation not only when the body is in a plethoric state (as Galen says), but on account of the magnitude of the affection, when the general system is in a moderate state with regard to the humours, as we do also in hemorrhage from the nose or elsewhere, when although the discharge do not proceed from plethora, we bleed from the opposite parts in order to produce revulsion; and so also in violent inflammations, as in colics and affections of the kidneys from calculi, ophthalmies, and other such acute and urgent attacks; for the heat and pain of the inflamed parts occasion a defluxion upon it, although the general system be free from superfluities. In such cases we must bleed more sparingly, proportioning the evacuation particularly to the age and constitution of the patient, and also taking into account the season, country, and habits of the person affected. When there is a strong inflammation near the vein which is opened, as in pleurisy and hepatitis, it will be most proper to wait the change of the blood in colour and consistence. Blood in inflammation is different from the natural, since being excessively heated, if it was formerly crude, it becomes ruddier and brighter; or if it was such before, it turns black from being over-heated. Yet we must not in every case wait for the change, but sometimes give over before this takes place; for two reasons, either from the weakness of the patient’s powers, which you may ascertain to have sunk by feeling the pulse (for you will find it either unequal as to strength and magnitude, or indistinct, the stream of the blood failing also indicates that the strength is sunk), or from the malignity of the inflammation; for sometimes it will not remit, but the constriction continues strong. But if none of these circumstances contra-indicate, and if the patient be in the vigour of age, we may wait until a change takes place, especially if the atmosphere be mild. But if the flow of blood stop before a sufficient evacuation has taken place (this happens from fear, deliquium animi, and coagulum, or too tight an application of the bandage), we must attend to each of these causes, rousing from deliquium with strong-scented things, slackening the bandage when too tight, and a coagulum may be dissolved by pouring in oil, or by rubbing it with the fingers. The rest of the apparatus for phlebotomy is known to everybody. But these things apply to venesection at the bend of the arm. When we would abstract blood from the forehead as for headache, having first used fomentations, we apply a bandage round the neck, placing a finger over the windpipe to prevent suffocation, and when the frontal vein is properly filled we divide it with the point of a lancet or scalpel. In the same manner we may open the external jugulars for chronic ophthalmy, producing a discharge of blood with the concave part of the scalpel. The vessels also below the tongue we open transversely for angina, but without the application of any bandage. Some also open in like manner the veins which appear in the great canthi, as for chronic affections of the head or eyes, in which cases they also sometimes rupture the vessels within the nostrils either by rubbing them with the extremity of a specillum, or by tickling them with rough substances. They also open those behind the ears for the affections about the head; and those about the top of the thighs, as in affections of the kidneys; and those in the extremities they also open, after by the application of the ligatures to the parts above, by friction in the case of the hands, and walking in that of the feet, the vessels having become distended with blood; in affections of the spleen opening the vessel in particular between the small and middle finger of the left hand, and in affections of the liver those of the right hand; for the evacuation of the extremities, being from a distance, occasions a more powerful revulsion. In ischiatic diseases, and those of the uterus, they open the vein in the foot above the inner toe.
Commentary. We have to regret that our limits prevent us from doing more ample justice to the sound and enlarged views of the ancient physicians on this subject, and we must be content with making a few desultory observations and giving a few extracts.