From observation at the operating table it is exceedingly difficult to describe with anything like scientific accuracy the limitations of a tumor in relation to the three subdivisions of the frontal lobe—the motor area, the premotor area and the frontal, or prefrontal, area. Not only does the tumor overlap the boundaries of these arbitrary subdivisions, but surrounding the tumor there are areas of vascular and proliferative changes that extend varying distances beyond the actual limits of the tumor. Takagi1described diffuse edema, with large perivascular spaces and dilatation of all the veins in the neighborhood, among the pathologic processes that surround the tumor. In 1913 he said: It is important to remember that when tumor develops in the brain and exists for a long time, alteration of the brain tissue even in regions remote from the tumor may occur. Failure to take this alteration into consideration may lead to

A Simple and Inexpensive Cystometer1

Tumor involving the frontal lobe alone: a symptomatic survey of one hundred and five verified cases

Bladder Dysfunction in Cases of Brain Tumor1 A Cystometric Study

The clinical value of bladder pressure estimations

CYSTOMETRY: STUDIES IN BLADDER FUNCTION. No. VI.

History of cystometry

Measurements of bladder pressure have been made from time to time for experimental purposes, but no successful attempt has been made to apply such observations in a convenient way to ordinary diagnosis. It is probable also that not even their importance in clinical diagnosis has been realized. The present paper, however, will attempt to show that such measurements are of great value in diagnosis and that, by means of a specially devised instrument, they can be made easily and with sufficient accuracy to afford much important clinical information. It is felt, furthermore, that a new principle in diagnosis has hereby been added. Starting with the well known anatomic fact that the bladder wall and its internal sphincter are chiefly in control of the sympathetics and parasympathetics, I believe that measurements of intracystic pressure, with known quantities of fluid, might throw much light, not only on the question of whether or

A Simple and Inexpensive Cystometer1

Citations

Tumor involving the frontal lobe alone: a symptomatic survey of one hundred and five verified cases

Bladder Dysfunction in Cases of Brain Tumor1 A Cystometric Study

The clinical value of bladder pressure estimations

CYSTOMETRY: STUDIES IN BLADDER FUNCTION. No. VI.

History of cystometry

References

Determination of bladder pressure with the cystometer: a new principle in diagnosis

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Determination of bladder pressure with the cystometer: a new principle in diagnosis

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