Benign, encapsulated tumors in the lateral ventricles of the brain : diagnosis and treatment / by Walter E. Dandy.

  • Dandy, Walter Edward, 1886-1946.
Date:
1934
Catalogue details

Licence: In copyright

Credit: Benign, encapsulated tumors in the lateral ventricles of the brain : diagnosis and treatment / by Walter E. Dandy. Source: Wellcome Collection.

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    PATHOLOGY Of several tumors in (he series there can be no doubt what¬ ever concerning their character. Four of these (Cases X, XI, XII an< 1 XIII) are known to have arisen in the glomus of the choroid plexus the only ones in which this origin is clearly established by the gross attachments. Case XV is a non-indigenous angioma that might have arisen any¬ where in the brain, or elsewhere in the body. In Case X the tumor is clearly an adenoma of the choroid plexus; the char¬ acteristic adult epithelium of the choroid is more or less per¬ fectly reproduced, together, in many places, with its alveolar structure. The difficulty of differentiating the benign adeno¬ matous forms of choroid plexus epithelial tumors from the malignant type, which is much more common, has been em¬ phasized in the discussion of those known to be malignant. The tumors in Cases XI, XII and XIII are pure fibromata of the choroid plexus and are not greatly different from fibromata arising elsewhere in the brain or other parts of the body. These three tumors are almost identical in every gross and micro¬ scopic respect and, therefore, doubtless represent a distinct and not uncommon type. The histological appearance of these tumors is perhaps not greatly different from patches of fibrous tissue that are seen in some of the small symptomless tumors of the plexus. Since the specimens in Cases III am 1 VI were lost (after they were drawn) the microscopic notes are lacking. The classification of the remaining tumors cannot be made so unequivocally. All are, I believe, different from other intra¬ cranial tumors, excepting some from the third ventricle. Pos¬ sibly the fourth ventricle may harbor similar growths, but if so I have not seen them. The fact that these tumors are so dif¬ ferent suggests their origin from either of the two structures in 17!)