Surgical site after resection of a meningioma.

Surgical site after resection of a meningioma. Research Abstract Details 

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Surgical site after resection of a meningioma. Abstract Text:

C A Dolinskas,F A Simeone,

PURPOSE: Our goal was to characterize MR changes over time at the site of meningioma resection in order to determine optimal timing for detecting residual and recurrent tumor. METHODS: Twenty-one patients were studied with enhanced MR imaging during the first 5 postoperative days and additional studies were obtained 3 to 8 weeks after surgery (16 studies), 3 months to 1 year after surgery (17 studies), and 1 year or more after surgery (32 studies). Images were analyzed for residual tumor, membrane enhancement, parenchymal enhancement, edema, and blood collections. RESULTS: Early postoperative images showed extensive, thin membrane enhancement that thickened by 3 to 8 weeks after surgery and that thinned or resolved and became less extensive by 6 months or more postoperatively. Twelve of 20 patients with long-term follow-up studies had membrane enhancement. Thin, serpiginous foci of enhancement in the surgical bed were identified only on early postoperative studies and probably represent gradual thrombosis of feeding vessels. CONCLUSION: Residual foci of meningioma are best detected on studies obtained within the first 5 days after surgery because membrane thickness increases by 3 to 8 weeks after surgery and may obscure a small residual meningioma. Our study confirms the presence of prolonged membrane enhancement after surgery, although it thins with time and becomes confined to the craniotomy site.

Surgical site after resection of a meningioma. Publishing Authors By Initials

CA Dolinskas,FA Simeone,

For similar natural sciences: time: time factors research abstracts see: natural sciences: time: time factors research

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Surgical site after resection of a meningioma. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: AJNR. American journal of neuroradiology

VOLUME: 19

Page Numbers: 419-26

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ISSN: 0195-6108

DAY: 14

MONTH: Mar

YEAR: 1998

Surgical site after resection of a meningioma. Information

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LANGUAGE: eng

NlmUniqueID: 8003708

Surgical site after resection of a meningioma. Keywords Mesh Terms:

KEYWORDS: Time Factors

MESH TERMS: pathology

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Grant and Affiliation Information for Surgical site after resection of a meningioma.

AFFILIATION: Department of Radiology, Pennsylvania Hospital, Philadelphia 19107, USA.

Country: UNITED STATES

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MEDLINETA: AJNR Am J Neuroradiol

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