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pseudotumor |
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pseudotumor /pseu·do·tu·mor/ (-too´mer) an enlargement that resembles a tumor, resulting from inflammation, fluid accumulation, or other causes.
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.
pseudotumor [-t(y)o̅o̅′mər] Etymology: Gk, pseudes + L, tumor, swelling a false tumor. 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.
pseudotumor phantom tumor. pseudotumor cerebri
cerebral edema and raised intracranial pressure without neurological signs except occasional sixth cranial nerve palsy. pseudotumor Any circumscribed, nonneoplastic tumor-like mass–eg, gastric inflammatory fibroid polyps, a wad of helminths–eg, Strongyloides species–seen in Uganda, 'amyloidomas', endometriomas or other mass
lesions. See Inflammatory pseudotumor. Cf Tumor Ophthalmology Inflammatory pseudotumor of orbit An idiopathic proliferation of the lymphoid tissue surrounding the ocular orbit, which may be autoimmune in nature and related to orbital myositis
Clinical Pain, exophthalmos, limitation of eye movement, lid erythema, edema, myositis, perineuritis, scleritis, dacryoadenitis; the lesion may be histologically impossible to differentiate from a true lymphoma, and may require molecular studies to
determine clonality DiffDx Dacryoadenitis, orbital myositis, vasculitis, sclerosing pseudotumors, lipogranuloma, epithelioid cell granuloma, xanthogranuloma. See Pseudolymphoma. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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