Enlargement of the tongue occasionally takes place in young subjects, a sort of simple hypertrophy, which often proceeds to a very great extent. The increase goes on in a remarkable manner after the organ is extruded beyond the lips, so that the patient is incapable of covering it. Portions of the swelling of a V shape have been removed in such cases, and the edges of the wound put together. But by well managed and continued pressure the absorption of the swelling has been brought about, the organ has been reduced within the oral aperture, and a cure has then rapidly followed.

Division of the Frænum Linguæ is sometimes, though rarely, required. Division can be necessary only when the frænum is so short as to confine the point of the tongue, prevent free motion of the organ, and thereby cause indistinctness of articulation. Infants are often supposed by anxious mothers to have their tongues unduly confined, when no such malformation exists; in such circumstances, it is almost needless to observe that the part ought not to be interfered with. And even when there is confinement, division should not be had recourse to, unless the child is prevented from taking nourishment. The operative procedure is simple and safe. The tongue is raised towards the palate, either by a spitula or split card—or, what is better, by the fingers—and the frænum is cut across to a sufficient extent by blunt-pointed scissors.

Ranula is a swelling produced by accumulation in, and distention of, the extremity of the combined ducts of the sublingual and submaxillary glands. The extremity of the duct contracts, or is completely closed, and in consequence of the saliva and mucus (the one the secretion of the gland, the other of the duct) collect, distend the canal, and cause thickening of the parietes. Thereby a tumour is formed, which, in some instances, attains a very large size, displacing in some measure the neighbouring parts, and incommoding the tongue in particular. Indistinct utterance and impeded deglutition result.

The orifice of the duct, if discovered, is to be dilated gradually by occasional introduction of variously sized probes. Often it is necessary to make a small incision in the situation of the orifice, and introduce a bit of gum-elastic bougie, by continuing the use of which for some time, permanency of the opening may be obtained.

Deposition of Earthy Matter—principally phosphate of lime—not unfrequently takes place in the extremity of the submaxillary and sublingual ducts, and the concretion so formed is often of considerable size; some are larger than an almond. The colour is either white or yellowish, and the surface either smooth or roughened by nodules; in all the calcareous matter is friable, and disposed in concentric layers. They are of the same nature as the earthy deposits, called tartar, which form on those teeth opposite to the extremities of the salivary ducts. The foreign body produces uneasiness in the mouth, swelling, and indistinctness of speech; occasionally painful swelling of the salivary gland and surrounding parts takes place. Concretions also form, though very rarely, in the extremity of the parotid duct, and are attended with like inconvenience; of this I have seen only two cases.

The foreign body is easily removed; an incision is made through the membrane of the mouth, and the concretion dislodged by forceps, a scoop, or the fingers. The saliva regains its course, and irritation subsides. Sometimes the foreign body is exposed by ulceration, and might ultimately escape from its bed spontaneously.

A figure of a salivary calculus of considerable size is here given. When the concretion is small, its extraction is not so easily accomplished as might be supposed. It is apt to slip back out of reach, so that it cannot be seized, brought forward and extracted either by scoops or forceps. The flow of saliva must be promoted by giving the patient something to masticate; the probability is, that the foreign body will then be presented, and perhaps expelled, if the opening of the duct has been previously dilated. A young lady was brought to me lately suffering great uneasiness from the presence of a concretion, not larger than a millet-seed. She complained of great pain under the jaw on seeing anything savoury, that, as the vulgar phrase is, made her mouth water. Various unsuccessful attempts had been made to remove it. A small incision of the surface of the duct was made, but the foreign body eluded the grasp of the forceps, and completely disappeared. The patient was given a bit of bread to chew, and almost immediately the concretion was expelled.

Tumours, unconnected with the salivary ducts, occasionally form in the loose cellular tissue under the tongue. They may be either sarcomatous or encysted; the former are rare. I have removed several solid tumours, principally adipose, from this situation. They were loosely connected, and taken away without almost any dissection; indeed they were lifted out with the fingers, after division of the membrane of the mouth and of the cellular cyst which surrounded them. One was as large as an orange, and of a flattened form. The tongue had been displaced by the swelling, and articulation, deglutition, and breathing impeded. The patient, an old lady, had a good recovery. The case had been by some mistaken for ranula; and I mention this circumstance, lest others may reckon more on the situation of a swelling, than on its feel and other external characters. A sketch of the tumour is given at page 137.

Encysted tumours below the tongue are common. The cysts are generally thin and adherent, the contents albuminous and glairy. They attain a large size, and prove very inconvenient. Occasionally the cysts are thick and more loosely attached; such usually contain atheromatous matter. I removed one uncommonly large, from the inner surface of which numerous hairs were growing.