pseudotumor cerebri

pseudotumor /pseu·do·tu·mor/ (-too´mer) an enlargement that resembles a tumor, resulting from inflammation, fluid accumulation, or other causes.

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pseudotumor ce´rebri  cerebral edema and raised intracranial pressure without neurological signs except occasional sixth nerve palsy.

inflammatory pseudotumor  a tumorlike mass representing an inflammatory reaction.

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pseudotumor cerebri,

a condition characterized by increased intracranial pressure, headache, blurring of the optic disc margins, vomiting, and papilledema without neurologic signs, except palsy of the sixth cranial nerve. Also called benign intracranial hypertension, meningeal hydrops.

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pseudotumor [soo″do-too´mer]

an enlargement that resembles a tumor; it may result from inflammation, accumulation of fluid, or other causes, and may or may not regress spontaneously.

pseudotumor ce´rebri cerebral edema and raised intracranial pressure without neurological signs except occasional sixth-nerve palsy.

inflammatory pseudotumor a tumorlike mass resulting from an inflammatory reaction; it may occur in a variety of organs and is composed of granulation tissue with leukocyte infiltration.

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pseudotumor

phantom tumor.

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pseudotumor cerebri

cerebral edema and raised intracranial pressure without neurological signs except occasional sixth cranial nerve palsy.

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pseudotumor cerebri

Benign intracranial hypertension, Neurology A condition caused by ↑ intracranial pressure with normal CSF; PC is most common in young obese ♀ with dysmenorrhea of ovarian origin, and is diagnosed by 1. Presence of bilateral papilledema and objective evidence of ↑ intracranial pressure 2. Absence of focal neurological Sx or signs 3. Absence of an extracranial cause of papilledema 4. Normal CSF Clinical Vision defects–loss of acuity, diplopia, blind spots, headaches, N&V, vertigo, tinnitus Etiology Anemia, leukemia, hyper- or hypovitaminosis A, lead intoxication, nalidixic acid, poliomyelitis, Guillain-Barre disease, menarche, pregnancy, galactokinase deficiency, hypoxia, allergies, cerebral trauma, steroid therapy for cerebral edema, withdrawal of steroids, chronic hypocalcemia with hypoparathyroidism with 1º adrenal insufficiency, thyroid replacement therapy, endocrinopathies–Addison's or Cushing's diseases, OCs, tetracycline–in infants, intracranial venous occlusion, inflammation