Neurologic progress and prospects : chairman's address, delivered before the Section on Nervous and Mental Diseases of the American Medical Association, at the Fifty-fourth Annual Session, held at New Orleans, May 5-8, 1903 / F.W. Langdon.

  • Langdon, Frank Warren, 1852-1933.
Date:
1903
Catalogue details

Licence: In copyright

Credit: Neurologic progress and prospects : chairman's address, delivered before the Section on Nervous and Mental Diseases of the American Medical Association, at the Fifty-fourth Annual Session, held at New Orleans, May 5-8, 1903 / F.W. Langdon. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    symptoms (localized muscular atrophy in shoulder, arm or hand muscles, sensory dissociation and hypesthesia) strongly suggest a more or less complete destruction of functional continuity in one of the spinal nerves form- ing the brachial plexus. 2. “The objective disturbances of sensibility resulting from this lesion closety conform with those observed by Sherrington after cutting a posterior root in a monkey. They differ in some respects from the anesthesia pro- duced by the division of a peripheral nerve. The ob- jective hypesthesia is not associated with any subjective sensation of numbness, and is consequently overlooked by the patient. 5. “The atrophy of the affected muscles is in excess of what might be expected in view of the fact that many of the muscles receive fibers from two or more spinal nerves. 6. “The condition generally occurs in persons who have at some time been the subjects of a disease affect- ing the cardio-vascular system. The morbid process is probably vascular in character and may be sudden or gradual in its onset.” PACHYMENINGITIS HEMORRHAGICA INTERNA. Barratt13 records an exhaustive series of investigations on man and lower animals, the results of which indicate that intravascular thrombosis is the probable essential lesion leading to the formation of the so-called false membrane in this disease He concludes: “Finally, the view may be advanced that pachymeningitis interna hemorrhagica is a morbid process in which the essential lesion is a separation of fibrin, usually within the blood vessels, on which the other changes in this condition are largely if not chiefly dependent.” The article is well illustrated. LOCAL PANATROPHY. Sir William Gowers14 contributes a brief but interest- ing article under this title. “In certain areas of the trunk, limbs or face, which vary in diameter from that of a nut to that of an orange, or larger, there seems to be wasting of all the subcu- taneous tissues down to the bones, with slight change in the skin, which is then distinctly thinner and slightly discolored. The aspect of the areas may be described as that of a subcutaneous excavation.” Even the bones may