Spinal intramedullary ependymal cyst and tethered cord in an adult

2006 ◽  
Vol 4 (6) ◽  
pp. 506-508 ◽  
Author(s):  
Erhan Takci ◽  
Goksin Sengul ◽  
Muzaffer Keles
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Tethered Cord ◽  
Pathological Examination ◽  
Resonance Imaging ◽  
Ependymal Cyst ◽  
Congenital Lesion ◽  
Post Surgery

✓ Spinal intramedullary ependymal cysts are extremely rare. Fourteen cases have been reported in the literature, and only one was associated with another congenital lesion. The authors describe the case of a 33-year-old man in whom an intramedullary ependymal cyst and filar lipoma were present. These lesions were diagnosed using magnetic resonance imaging and were treated surgically. Pathological examination confirmed the diagnosis. At 6 months post-surgery, there was no evidence of recurrence.

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 Anterior cruciate ligament ganglion: case report

2002 ◽  
Vol 120 (6) ◽  
pp. 195-197 ◽  
Author(s):  
André Pedrinelli ◽  
Fábio Bonini Castellana ◽  
Ricardo Bragança de Vasconcellos Fontes ◽  
Rafael Ferreira Coelho ◽  
Luiz Álvaro de Menezes F°.
Keyword(s):  
Magnetic Resonance Imaging ◽  
Anterior Cruciate Ligament ◽  
Case Report ◽  
Magnetic Resonance ◽  
Cruciate Ligament ◽  
Clinical Signs ◽  
Left Knee ◽  
Pathological Examination ◽  
Resonance Imaging ◽  
Anterior Cruciate

CONTEXT: A ganglion is a cystic formation close to joints or tendinous sheaths, frequently found in the wrist, foot or knee. Intra-articular ganglia of the knee are rare, and most of them are located in the anterior cruciate ligament. The clinical picture for these ganglia comprises pain and movement restrictions in the knee, causing significant impairment to the patient. Symptoms are non-specific, and anterior cruciate ligament ganglia are usually diagnosed through magnetic resonance imaging or arthroscopy. Not all ganglia diagnosed through magnetic resonance imaging need to undergo surgical treatment: only those that cause clinical signs and symptoms do. Surgical results are considered good or excellent in the vast majority of cases. CASE REPORT: A 29-year-old male presented with pain in the left knee during a marathon race. Physical examination revealed limitation in the maximum range of knee extension and pain in the posterior aspect of the left knee. Radiographs of the left knee were normal, but magnetic resonance imaging revealed a multi-lobed cystic structure adjacent to the anterior cruciate ligament, which resembled a ganglion cyst. The mass was removed through arthroscopy, and pathological examination revealed a synovial cyst. Patient recovery was excellent, and he resumed his usual training routine five months later.

scholarly journals Relationship Between Magnetic Resonance T2-Mapping and Matrix Metalloproteinase 1,3 in Knee Osteoarthritis

2020 ◽  
Author(s):  
Lei Shi ◽  
Kexin Wang ◽  
Jinghong Yu ◽  
Mingkai Li ◽  
Guangmei Men ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Matrix Metalloproteinase ◽  
Knee Osteoarthritis ◽  
T2 Mapping ◽  
Cartilage Degeneration ◽  
Pathological Examination ◽  
Lesion Group ◽  
Control Group ◽  
Resonance Imaging

Abstract Objective To investigate the relationship between quantitative analysis of MRI (T2-mapping) and the expression of matrix metalloproteinase (MMP-1, MMP-3) in osteoarthritis of the knee joint and the role of MMP-1,3 in the pathogenesis of osteoarthritis. Methods Thirty cases of knee osteoarthritis (KOA) patients with total knee arthroplasty (TKA) (lesion group) and 30 healthy adult volunteers (control group) were scanned with 1.5 T routine MR and T2-mapping, and their T2 values were measured and statistically analyzed. The pathological examination of the knee cartilage that was replaced during the operation and the immunohistochemical assay were used to measure the expression of MMP-1,3. The correlation between the T2 value of magnetic resonance imaging and the expression of MMP-1,3 was analyzed. Results (1) According to the Recht grading standard for magnetic resonance, the T2 value of magnetic resonance increased significantly with the increase of cartilage degeneration. The differences in T2 values between each level and the normal group were statistically significant (P  < 0.05). (2) The T2 value of magnetic resonance imaging increased with the severity of the cartilage degeneration pathological Mankin grading, and the difference was statistically significant (P  <  0.05). (3) The expression of MMP-1,3 increased with cartilage degeneration. (4) The T2 value and the expression of MMP-1 in cartilage showed a linear trend. The result of Spearman correlation analysis showed that the expression of MMP-1,3 increased as the cartilage T2 value increased. There was a positive linear correlation between the two. Conclusion The T2 value of magnetic resonance increased with the degeneration of KOA cartilage. The expression of MMP-1,3 increased with the severity of articular cartilage destruction. The T2 value of KOA magnetic resonance was positively correlated with the expression of MMP-1,3.

scholarly journals Magnetic Resonance Imaging Analysis of Caudal Regression Syndrome and Concomitant Anomalies in Pediatric Patients

2016 ◽  
Vol 6 ◽  
pp. 36 ◽  
Author(s):  
Deb K Boruah ◽  
Dhaval D Dhingani ◽  
Sashidhar Achar ◽  
Arjun Prakash ◽  
Antony Augustine ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Pediatric Patients ◽  
Tertiary Care ◽  
Tethered Cord ◽  
Type I ◽  
Care Hospital ◽  
Resonance Imaging ◽  
Caudal Regression Syndrome ◽  
Caudal Regression

Objective: The aim of this study was to evaluate the magnetic resonance imaging (MRI) findings of caudal regression syndrome (CRS) and concomitant anomalies in pediatric patients. Materials and Methods: A hospital-based cross-sectional retrospective study was conducted. The study group comprised 21 pediatric patients presenting to the Departments of Radiodiagnosis and Pediatric Surgery in a tertiary care hospital from May 2011 to April 2016. All patients were initially evaluated clinically followed by MRI. Results: In our study, 21 pediatric patients were diagnosed with sacral agenesis/dysgenesis related to CRS. According to the Pang's classification, 2 (9.5%) patients were Type I, 5 (23.8%) patients were Type III, 7 (33.3%) patients were Type IV, and 7 (33.3%) patients were of Type V CRS. Clinically, 17 (81%) patients presented with urinary incontinence, 6 (28.6%) with fecal incontinence, 9 patients (42.9%) had poor gluteal musculatures and shallow intergluteal cleft, 7 (33.3%) patients had associated subcutaneous mass over spine, and 6 (28.6%) patients presented with distal leg muscle atrophy. MRI showed wedge-shaped conus termination in 5 (23.8%) patients and bulbous conus termination in 3 (14.3%) patients above the L1 vertebral level falling into Group 1 CRS while 7 (33.3%) patients had tethered cord and 6 (28.6%) patients had stretched conus falling into Group 2 CRS. Conclusion: MRI is the ideal modality for detailed evaluation of the status of the vertebra, spinal cord, intra- and extra-dural lesions and helps in early diagnosis, detailed preoperative MRI evaluation and assessing concomitant anomalies and guiding further management with early institution of treatment to maximize recovery.

Lumbosacral foraminal ratios and areas using MRI in medium-sized dogs

2014 ◽  
Vol 27 (05) ◽  
pp. 333-338 ◽  
Author(s):  
R. L. Tucker ◽  
N. Fitzpatrick ◽  
D. Reynolds
Keyword(s):  
Magnetic Resonance Imaging ◽  
Body Weight ◽  
Magnetic Resonance ◽  
Objective Evaluation ◽  
Foraminal Stenosis ◽  
Resonance Imaging ◽  
Post Surgery ◽  
Extended Position ◽  
Working Dogs ◽  
Flexion And Extension

Summary Objective: To examine conventional magnetic resonance imaging planes of the lumbosacral foramina to obtain objective measurements of foraminal size in mediumsized (20–28 kg) normal dogs. Method: Ten canine cadavers were evaluated using magnetic resonance imaging in neutral, flexed and extended position. Foraminal ratios, areas and lumbosacral angles were calculated and their relationship to body weight was evaluated. Results: Foraminal ratios were found to be independent of body weight in medium sized dogs (p >0.42). Foraminal areas were dependent on body weight (p <0.05). Flexion and extension were shown to significantly change both the foraminal ratio and area. Clinical significance: Lumbosacral foraminal stenosis is common in working dogs. Foraminal ratios were evaluated in mediumsized dogs and were found to be independent of body weight, which may provide objective evaluation of surgical decompression techniques if calculated pre- and post-surgery. Foraminal areas were not independent of body weight.

scholarly journals Imaging-based definition of lower uterine segment carcinoma to improve the detection sensitivity of probable Lynch syndrome

2020 ◽  
Vol 50 (3) ◽  
pp. 270-275
Author(s):  
Hiroyuki Yamazaki ◽  
Sho Takeshita ◽  
Yukiharu Todo ◽  
Hiroko Matsumiya ◽  
Chisa Shimada ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Lynch Syndrome ◽  
Lower Uterine Segment ◽  
Broad Sense ◽  
Detection Sensitivity ◽  
Pathological Examination ◽  
Narrow Sense ◽  
Resonance Imaging ◽  
Definition Of

Abstract Objective The aim of this study was to investigate a magnetic resonance imaging-based definition of lower uterine segment carcinoma. Methods We retrospectively reviewed 587 consecutive patients with endometrial cancer who underwent hysterectomy. Lower uterine segment carcinoma was determined through pathological examination and magnetic resonance imaging assessment. For imaging assessment, the location of the inner lining of the uterus was classified into four equal parts on a sagittal section image. A tumor was defined as lower uterine segment carcinoma when its thickest part was located in the second or the third part from the uterine fundus. Lower uterine segment carcinoma was further divided into lower uterine segment in a narrow sense, upon which diagnosis was exclusively based on pathological findings, and lower uterine segment in a broad sense that were the remaining lower uterine segment carcinomas except lower uterine segment carcinomas in a narrow sense. The relationship between lower uterine segment carcinoma and probable Lynch syndrome was investigated. Patients with loss of MSH2, MSH6, and PMS2 expression or those with tumors with loss of MLH1 and absence of MLH1 promoter methylation were diagnosed as probable Lynch syndrome. Results Lower uterine segment carcinoma was identified in 59 (10.2%) patients. Twenty-eight (47.5%) patients were categorized as lower uterine segment in a narrow sense and 31 (52.5%) as lower uterine segment in a broad sense. Among them, probable Lynch syndrome was identified in 12 (20.3%) cases. There was no difference in clinical profiles, including the prevalence of probable Lynch syndrome between the two categories. Conclusions A magnetic resonance imaging-based expanded definition of lower uterine segment carcinoma is likely to secure characteristics equivalent to a conventional pathology-based definition of lower uterine segment carcinoma. The novel definition of lower uterine segment carcinoma might improve the detection of probable Lynch syndrome.

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