Later in the year of admission, patient became more negativistic. He refused to have his clothes brushed. His answers were slow. Mental arithmetic was correctly but slowly done. During January, 1903, the patient was apt to be active and talkative for a time, and then his attitude would suddenly change to one of silence, resistivement and untidiness. From time to time he would be querulous and sulky. In August, 1903, the patient became weaker and could walk with assistance only. Paralysis developed in the left facialis region and in the left external rectus. Pupils were still small, but the left had become smaller than the right. Light reaction tests unsatisfactory. Knee-jerks could not be obtained.
In December, 1903, the patient was untidy and helpless, lying with his thighs and legs flexed. The limbs were spastic on passive motion. In 1905, the pain sense of the legs was found lost and the pupils were small and stiff. The protruded tongue was deflected to the right. The right labial fold was more prominent than the left. Knee-jerks remained absent. Ataxia was extreme.
The Neurological Findings may be summed up as follows:
1. Ataxia of the legs. 2. (Probable) Diminished sensibility in the legs. 3. Pupils small and stiff. Left smaller than the right. 4. Paralysis of left facialis. 5. Paralysis of left external rectus. 6. Tongue protruded to right. 7. Right elbow jerk greater than left. 8. Knee-jerks absent.
The cause of death was bronchopneumonia. The walls and valves of the heart showed a few chronic changes. There was a marked splenitis and an atrophy of the liver. The kidneys showed numerous depressed scars. The arch of the aorta was somewhat sclerotic. The following is a full description of the head findings which we present by way of comparison with other cases. Note especially the cerebellar, dentate, and olivary changes. Note also the fact that palpable sclerosis is demonstrable over a far larger area than atrophy, so that we may almost safely conclude that the process of induration sometimes precedes that of atrophy. One gets the impression from the extent of visible atrophy and tangible induration in this case, that a possible therapy would have not merely to clear the perivascular spaces of cells and spirochetes, but would also need to arrest the indurating and wasting process. Nor could any therapy deal effectively with the superior frontal and upper central atrophy of the cerebrum of this case, or with the olivary and cerebellar lesions.
Head: Hair thin at vertex. Scalp normal. Calvarium thin and dense. Dura mater slightly adherent to calvarium at vertex. Sinuses normal. Arachnoidal villi well developed. Pia mater of anterior and central regions contains an excess of fluid. The pial veins well injected.
The pia mater exhibits one unusual lesion: Faintly yellowish brown spots of miliary and slightly larger size are scattered irregularly in clusters over the vertex. These miliary pial macules are observed especially over the posterior third of the left superior frontal gyrus (a group of twelve or more). Two are seen in the pia mater of the right superior frontal gyrus. One is seen in the upper part of the left post central gyrus. The upper end of the right postcentral gyrus contains three macules.
Besides these brownish macules, the pia mater also shows focal white thickenings which resemble the more frequent appearances of chronic fibrous leptomeningitis. The white thickenings are of irregular size but are, as a rule, larger than the macules above mentioned. They occur, as a rule, over the sulcal veins and are most frequent in the anterior region.
The vessels at the base are normal. There is no evidence of pial thickening at the base of the brain. Brain weight, 1265 grams. There is visible atrophy of both superior frontal gyri and of the upper two-thirds of both central gyri. The extent of palpable sclerosis surpasses that of visible atrophy. Palpable increase of consistence is shown by the prefrontal, orbital (more marked on left side), frontal, central, hippocampal and occipital regions. The temporal cortex is of normal or slightly reduced consistence.
Section of the cerebral cortex shows everywhere preservation of the cortical markings. The sclerosed areas show a diminution in depth of the cortex, which is more marked in the left prefrontal region. The white matter of the centrum semiovale of the prefrontal and occipital regions on both sides shows an increase of consistence. The cerebellar cortex also shows variations in consistence. The clivus and lobus cacuminis and the posterior half of the inferior surfaces of both cerebellar hemispheres are firmer than normal. The laminæ of the left clivus are a trifle narrower than those of the right. There is visible extensive atrophy of the laminæ on both sides of a fissure in the middle of the left lobus cacuminis. In the coördinate portion of the right cacumen there is a similar process which is less marked. The dentate nuclei are firm. The olives show an increase of consistence, equal on both sides. The left olive shows on section a crowding together of its folds in the middle part of the upper limb.