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Titolo:
Heavily T2 weighted MR assessment of fornical injury after anterior interhemispheric approach for large suprasellar tumors
Autore:
Saeki, N; Kubota, M; Murai, H; Yamaura, A; Sunami, K; Uozumi, A;
Indirizzi:
Chiba Univ, Sch Med, Dept Neurol Surg, Chuo Ku, Chiba 2608670, Japan ChibaUniv Chiba Japan 2608670 eurol Surg, Chuo Ku, Chiba 2608670, Japan Kawatetsu Chiba Hosp, Dept Neurol Surg, Chiba, Japan Kawatetsu Chiba HospChiba Japan a Hosp, Dept Neurol Surg, Chiba, Japan Matsudo Municipal Hosp, Dept Neurol Surg, Matsudo, Chiba, Japan Matsudo Municipal Hosp Matsudo Chiba Japan l Surg, Matsudo, Chiba, Japan
Titolo Testata:
ACTA NEUROCHIRURGICA
fascicolo: 7, volume: 143, anno: 2001,
pagine: 701 - 706
SICI:
0001-6268(2001)143:7<701:HTWMAO>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
SCANS;
Keywords:
heavily T2 weighted MRI; fornix; pituitary tumor;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
14
Recensione:
Indirizzi per estratti:
Indirizzo: Saeki, N Chiba Univ, Sch Med, Dept Neurol Surg, Chuo Ku, Inohana 1-8-1, Chiba 2608670, Japan Chiba Univ Inohana 1-8-1 Chiba Japan 2608670 hiba 2608670, Japan
Citazione:
N. Saeki et al., "Heavily T2 weighted MR assessment of fornical injury after anterior interhemispheric approach for large suprasellar tumors", ACT NEUROCH, 143(7), 2001, pp. 701-706

Abstract

Fornical injury in transforaminal approach is well known. Its injury in the anterior interhemispheric approach (AIA) has been rarely highlighted. We report 2 cases with a large suprasellar tumor who underwent AIA. Postoperative heavily T2 weighted reversed (T2R) MR images demonstrated its unilateral injury. The clinical significance of symptom-free fornical injury after AIA is discussed. Cases 1 and 2 were a 15 year-old girl with a meningioma and a 49-year-old woman with a craniopharyngioma, respectively. They underwent AIA. Postoperative T2R images revealed unilateral fornical crus atrophy. They did not present associated memory deficits. Case I had the injury of both fornical column and anterior commissure. They were speculatively torn by intra-operative lateral retraction of the frontal lobes. Case 2 had unilateral atrophy ofthe mammillary body and postcommissural fornix, which were probably causedby ischemic damage related to surgical manipulation, since case 2 had an associated anterior thalamic infarct. During the operation for large suprasellar tumors, excessive laterally directed brain retraction should be avoided, since such manipulation may easily tear the overstretched anterior commissure and fornical column. Once we notice or suspect fornical injury on MR studies in cases of re-operation, wehave to choose a surgical approach and operative manipulation to preserve an intact fornix. The MR evaluation of fornix should be included in the perioperative radiological assessment, since patients with unilateral fornical injury were freeof memory disturbance, and T2R imaging is a useful MR sequence for depicting the anatomy related to the fornix.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 04:53:53