Perforation, when it occurs, is usually recognized at once by the signs of more or less immediate collapse, which quickly results in death.
The abdomen becomes suddenly distended, meteoric over its entire surface, the normal hepatic dulness giving place to a tympanitic resonance.
Not infrequently perforation occurs as the result of an accident, as after a push or blow upon the abdomen (Volz), heavy lifting (Volperling), riding in a wagon (Marsh), after dancing (Cless), mere turning of the body in bed (Langdon Downs), after emesis (Urban), purgation (Stokes), enema (Mêlier), etc., etc. That the slightest agitation may suffice at times to break down the last barrier of serous tissue separating the intestinal and peritoneal cavity is shown in the case recorded by With, where fatal perforative peritonitis occurred after a fit of immoderate laughter.
Paratyphlitis distinguishes itself from the other forms of the disease by its more insidious character. There is also in paratyphlitis, as a rule, less disturbance in the alimentary canal. The cæcum in paratyphlitis is mostly empty or is filled with gas, whose presence is recognized by tympanitic resonance on lighter percussion. On the other hand, paratyphlitis is characterized by the greater frequency of pressure signs in the right lower extremity. If the subjacent iliac and psoas muscles be implicated, the thigh is flexed upon the leg in decubitus. Various paræsthesiæ, formication, numbness, pain, and veritable paresis are experienced in the right leg. Dysuria, retraction of the testicle, and priapism may also occur in this form of the disease. Or pressure upon the iliac vein induces thrombosis, with oedema, milk leg. The long-continued process of suppuration in paratyphlitis leads also at times to hectic fever or pyæmia, with slow marasmus.
In all cases relapses are very frequent, as repeated occurrences of the disease constitute the rule. Eichhorst records the case of a court-officer who suffered five attacks of paratyphlitis in the short space of one and a half years.
DIAGNOSIS.—The recognition of the disease is mostly simple. The pain, the tumor, and the disturbances of digestion sufficiently, and for the most part sufficiently early, distinguish the affection.
Simple impaction of feces is differentiated by the history of constipation; by the feel of the hardened feces, which form an elongated, nodulated, sausage-shaped tumor along the entire ascending colon, and later in shifting along the transverse colon; by the comparatively slight tenderness; and by the entire relief which follows thorough irrigation of the bowel.
Cancer may be eliminated by regard of the age of the patient, the slow development and course of the symptoms, and the gradual manifestation of its cachexia.
Invagination is an affection for the most part of early childhood—is marked by the sudden appearance of violent symptoms of disturbance of digestion, vomiting, often stercoraceous, occlusion, diarrhoea, or dysentery, with straining and discharges of blood.
DURATION.—Typhlitis and its complications have no definite duration. A case may terminate fatally in the course of a few days or may extend itself over months, or with its effects over years or for life. The disease is, as a rule, much shorter in childhood than in adult life. According to Matterstock, nearly one-half (44 per cent.) of children succumb to the disease within the first three days. Wood records the case of a girl aged ten who died in nine hours. The average duration of cases of typhlitis without suppuration ranges from fourteen to twenty-one days. The early evacuation of inflammatory products by aspiration or incision may cut the disease short at any time, or exacerbations and remissions may manifest themselves for months or years—a condition especially liable to occur when burrowing sinuses or fistulæ develop, or when passive encapsulated abscesses are aroused into activity by some accident or indiscretion on the part of the patient.