scholarly journals Multivariate Analysis of Preoperative Magnetic Resonance Imaging Reveals Transcriptomic Classification of de novo Glioblastoma Patients

2019 ◽  
Vol 13 ◽  
Author(s):  
Saima Rathore ◽  
Hamed Akbari ◽  
Spyridon Bakas ◽  
Jared M. Pisapia ◽  
Gaurav Shukla ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Multivariate Analysis ◽  
Magnetic Resonance ◽  
De Novo ◽  
Preoperative Magnetic Resonance Imaging ◽  
Resonance Imaging ◽  
Preoperative Magnetic Resonance ◽  
De Novo Glioblastoma

scholarly journals Laparoscopic resection of two peritoneal loose bodies on the rectosigmoid colon

2018 ◽  
Vol 7 (2) ◽  
pp. 736
Author(s):  
Ken-ichi Honda ◽  
Tomoko Nakagawa ◽  
Yasushi Kurihara ◽  
Koji Kajitani ◽  
Tetsuji Ando ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Laparoscopic Resection ◽  
Preoperative Magnetic Resonance Imaging ◽  
Pathological Examination ◽  
Resonance Imaging ◽  
Loose Bodies ◽  
Rectosigmoid Colon ◽  
Preoperative Magnetic Resonance

Laparoscopic examination of a 77-year-old woman revealed two peritoneal loose bodies connected to fatty appendices on the rectosigmoid colon and resected at the stalks. The peritoneal loose bodies were found to be fat-containing masses on preoperative magnetic resonance imaging, and postoperative pathological examination revealed fat degeneration tissue with or without fibrous outer layers.

scholarly journals Use of Preoperative Magnetic Resonance Imaging for Breast Cancer

JAMA Oncology ◽  
2015 ◽  
Vol 1 (9) ◽  
pp. 1238 ◽  
Author(s):  
Angel Arnaout ◽  
Christina Catley ◽  
Christopher M. Booth ◽  
Matthew McInnes ◽  
Ian Graham ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Preoperative Magnetic Resonance Imaging ◽  
Resonance Imaging ◽  
Preoperative Magnetic Resonance

Spinal Cord Biopsy: A Review of 38 Cases

Neurosurgery ◽  
2003 ◽  
Vol 52 (4) ◽  
pp. 806-816 ◽  
Author(s):  
Aaron A. Cohen-Gadol ◽  
Ofer M. Zikel ◽  
Gary M. Miller ◽  
Allen J. Aksamit ◽  
Bernd W. Scheithauer ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Preoperative Magnetic Resonance Imaging ◽  
Resonance Imaging ◽  
Imaging Studies ◽  
Benign Lesions ◽  
Spinal Cord Lesions ◽  
Clinicopathological Findings ◽  
Preoperative Magnetic Resonance

Abstract OBJECTIVE Neurosurgeons are frequently asked to evaluate patients for spinal cord biopsies when preoperative magnetic resonance imaging studies demonstrate nonspecific features. These lesions often appear unresectable, but surgeons must decide whether a biopsy is warranted. To determine the best approach to these cases, we evaluated the clinicopathological findings for patients with unknown spinal cord lesions who underwent spinal cord biopsies. METHODS Thirty-eight consecutive patients who underwent spinal cord biopsies at the Mayo Clinic (Rochester, MN) between August 1988 and July 1998 were studied. A detailed review of the case histories, radiological results, surgical notes, histological findings, and outcomes was performed. RESULTS Spinal cord biopsies were performed for 21 male and 17 female patients (mean age, 42.1 yr) with progressive neurological deficits related to spinal cord lesions. All patients underwent preoperative magnetic resonance imaging evaluations. High T2-weighted signal intensity and spinal cord expansion were identified in 92 and 87% of cases, respectively. After gadolinium infusion, the majority (94%) of the inflammatory lesions demonstrated patchy and often peripherally situated enhancement. This neuroradiological pattern was less common for neoplasms (50%) and benign lesions (40%). The most common pathological findings were inflammatory changes of demyelination or sarcoidosis, which together accounted for 13 cases (34%). Nonspecific changes or benign lesions were observed in 10 cases (26%). Neoplasms were identified in eight cases (21%). One case of tuberculosis and one of schistosomiasis were found. Overall, 47% of the preoperative diagnoses made by the attending surgeon were correct. For 26% of the patients, specific treatment was based on the biopsy results. The average follow-up period was 12 months (standard deviation, 14 mo; range, 0–50 mo). CONCLUSION Preoperative laboratory and imaging studies are often diagnostically inconclusive in cases of spinal cord lesions with nonspecific features. Biopsies should be considered for patients with progressive symptomatic lesions.

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