SYMPTOMS.—In addition to the superficial ulceration described, and in addition to the constitutional and local symptoms of advanced tuberculosis of the lungs or lungs and larynx, as may be, there are no special symptoms attending the tuberculous ulcer of the tongue. Saliva is sometimes secreted in excess, but that is not characteristic. There is little pain and little impediment to the movements of the tongue until the disease has advanced.
DIAGNOSIS.—The presence in a tuberculous subject of a unilateral, irregular ulcer of the tongue surmounted with grayish detritus and surrounded by reddened edges, should suffice for the recognition of its presumptive tuberculous character. It is most difficult perhaps to differentiate from a small ulcerated squamous-celled carcinoma, and the two indeed sometimes coexist, rendering the discrimination extremely difficult until the advanced progress of the carcinoma places the diagnosis beyond doubt.
In the early stages, however, it is distinguished by lack of the peculiar lancinating pains of carcinoma, which, however, are not invariably attendant, and by lack of secondary involvements of the cervical lymphatic glands. At all times it should be distinguishable from the carcinomatous ulcer by lack of the fungus-like appearance of the bed of the ulcer which is usual in carcinoma.
From syphilitic ulcer it is distinguishable by the history of the case, its tendency to be unilateral, and its failure to respond to antisyphilitic treatment. Syphilitic ulceration of the tongue may represent the primary, the secondary, or the tertiary manifestation of the specific disease. The former will not be discussed in this connection.
Secondary ulcers occur on the upper surface of the tongue, most frequently at the anterior portion, as fissures, usually longitudinal, the floors of which are ulcerated. They occur likewise at the sides, tip, and even lower surface of the organ. They are often associated with secondary ulceration in the mucous membrane of some portion of the mouth. They are quite painful, especially to the contact of pungent articles of food. Some ulcers occur as simple superficial excoriations at some portion of the edge or tip of the tongue, giving little evidence of any specific character.
Tertiary ulcers are usually sequelæ of gummata. They are much deeper than secondary ulcers, sanious at bottom, often serpiginous in configuration, and apt to extend in depth as well as in superficies, sometimes penetrating through and through the organ. They are most frequent in the very central portion of the tongue, or are symmetrically disposed on either side of it.
PROGNOSIS.—The prognosis of tuberculous ulceration is bad, both as regards tongue and patient.
TREATMENT.—The only topical treatment offering any prospect of local cure is the bodily destruction of the ulcer and the surrounding tissue with caustics, the best of which are the incandescent metals, or else the excision, with the incandescent knife, of a portion of the tongue comprising all the affected tissue. In the former case the tuberculous process often reappears about the cicatrix; in the latter, at some more distant point.
Tincture of iodine locally, detergent washes, and the like, often secure a certain amount of comfort as palliatives. The same indications prevail as in simple chronic glossitis, superficial and deep-seated. Iodoform locally is of benefit, inasmuch as it relieves pain and reduces collateral inflammation, but it is powerless to arrest the onward march of the ulcerative process.