Involvement of the proximal tibiofibular joint in ankylosing spondylitis

2009 ◽  
Vol 50 (4) ◽  
pp. 418-422 ◽  
Author(s):  
Hyun Pyo Hong ◽  
Hye Won Chung ◽  
Byeong-Kyoo Choi ◽  
Young Cheol Yoon ◽  
Sang Hee Choi

Background: Ankylosing spondylitis (AS) may affect peripheral joints, with the shoulder, hip, and knee being well known involved sites. However, involvement of the proximal tibiofibular (PTF) joint has not yet been investigated. Purpose: To evaluate PTF joint abnormalities in patients with AS. Material and Methods: From July 1997 to June 2005, 16 patients (15 male, one female; mean age 25 years), who were clinically diagnosed with AS, underwent magnetic resonance imaging (MRI) to evaluate knee pain. All patients also underwent plain radiographs of the knee, lumbar spine, and pelvis. Twenty knee MRIs (bilateral in four patients) and 16 sets of knee, lumbar spine, and pelvic radiographs were retrospectively reviewed in order to evaluate possible AS involvement. The presence of abnormalities suggesting AS involvement were recorded separately in the sacroiliac joints, lumbar spine, hip, and femorotibial and PTF joints. If the PTF joint showed any pathologic findings, the radiologic findings were recorded. Results: Three of 16 patients (18.7%) had pathologic features of the PTF joint observed by plain radiographs or MRI. One of these three patients showed bilateral involvement of the PTF joints on plain radiographs, while the other two patients showed unilateral involvement on MRI. Subchondral sclerosis, cartilage abnormality, erosion, and abnormal bone marrow signal intensity were identified on MRI. Plain radiographs of two patients revealed subchondral sclerosis and spur formation in the PTF joint. The frequencies of involvement of other joints in the 16 patients were as follows: lumbar spine, n=5 (31%), hip joint, n=1 (6%) (identified by plain radiographs), and femorotibial joints, n=10 (62.5%) (identified by knee MRI). Conclusion: MR imaging of the PTF joint can depict synovial changes and their effect on joint structures in patients with AS. The MRI findings of AS involving the PTF joints are subchondral sclerosis, cartilage abnormality, erosion, and abnormal bone marrow signal intensity.

2016 ◽  
Vol 207 (6) ◽  
pp. 1252-1256 ◽  
Author(s):  
Edward Smitaman ◽  
Bruno P. G. Pereira ◽  
Brady K. Huang ◽  
Mina M. Zakhary ◽  
Evelyne Fliszar ◽  
...  

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Gunjan L. Shah ◽  
Aaron S. Rosenberg ◽  
Jamie Jarboe ◽  
Andreas Klein ◽  
Furha Cossor

Purpose. The increased use of magnetic resonance imaging (MRI) has resulted in reports of incidental abnormal bone marrow (BM) signal. Our goal was to determine the evaluation of an incidental abnormal BM signal on MRI and the prevalence of a subsequent oncologic diagnosis.Methods. We conducted a retrospective cohort study of patients over age 18 undergoing MRI between May 2005 and October 2010 at Tufts Medical Center (TMC) with follow-up through November 2013. The electronic medical record was queried to determine imaging site, reason for scan, evaluation following radiology report, and final diagnosis.Results. 49,678 MRIs were done with 110 patients meeting inclusion criteria. Twenty two percent underwent some evaluation, most commonly a complete blood count, serum protein electrophoresis, or bone scan. With median follow-up of 41 months, 6% of patients were diagnosed with malignancies including multiple myeloma, non-Hodgkins lymphoma, metastatic non-small cell lung cancer, and metastatic adenocarcinoma. One patient who had not undergone evaluation developed breast cancer 24 months after the MRI.Conclusions. Incidentally noted abnormal or heterogeneous bone marrow signal on MRI was not inconsequential and should prompt further evaluation.


2007 ◽  
Vol 30 (6) ◽  
pp. 303-308 ◽  
Author(s):  
Nadir Ghanem ◽  
Anna Lerche ◽  
Christian Lohrmann ◽  
Carsten Altehoefer ◽  
Michael Henke ◽  
...  

2005 ◽  
Vol 53 (1) ◽  
pp. 125-130 ◽  
Author(s):  
Tulin Yildirim ◽  
A.Muhtesem Agildere ◽  
Levent Oguzkurt ◽  
Ozlem Barutcu ◽  
Osman Kizilkilic ◽  
...  

2013 ◽  
Vol 31 (15_suppl) ◽  
pp. 1580-1580
Author(s):  
Gunjan L. Shah ◽  
Jamie Michelle Bunch Jarboe ◽  
Aaron Seth Rosenberg ◽  
Andreas Kirschmer Klein ◽  
Furha Iram Cossor

1580 Background: The increased use of magnetic resonance imaging (MRI) has resulted in increased numbers of incidental findings. Oncologists often receive consults for workup of "abnormal marrow signal." As there is no standard evaluation for such findings and the yield of additional evaluation is unclear, we performed a retrospective study of patients evaluated with MRI at Tufts Medical Center (TMC). Methods: With IRB approval, TMC radiology reports were searched from 5/9/05-12/31/08 with GE Centricity Radiology Information System 2.2. Included patients had MRI reports containing the phrases “abnormal bone marrow” or “heterogeneous bone marrow”, but no clear etiology stated. Further workup, including referral to a subspecialist, laboratory, radiographic, or pathologic evaluations, final diagnosis, and last follow up were collected. Results: 29,508 MRIs were performed and 77 patients met search criteria. Median age was 58 years with a median follow-up of 41 months at TMC after qualifying MRI. 40/77 (52%) of patients had either an MRI of the lumbar spine or hip with 21/77 (27%) undergoing work-up for the marrow findings. Evaluations included CBC (38%), SPEP (24%), quantitative immunoglobulins (14%), free light chains (10%), peripheral blood flow cytometry (5%), bone marrow biopsy (19%), skeletal survey (14%), bone scan (48%), CT scan (24%), biopsy of other site (24%), and subspecialty referal (48%, 29% to oncology). Definitive diagnosis was assigned in 11/21 (52%) cases, with 5 being malignancies (1 follicular lymphoma, 2 multiple myeloma, 2 lung cancer). Three patients were later diagnosed with malignancy (breast cancer, myelodysplastic syndrome, merkel cell carcinoma) at a median of 19 months. Overall, 10% of patients with abnormal marrow on MRI were diagnosed with a malignancy. Conclusions: Incidentally noted abnormal or heterogeneous bone marrow signal on MRI was not inconsequential. Of those patients who underwent evaluation for the finding, 24% were diagnosed with a malignancy. We conclude that abnormal bone marrow findings on MRI should not be ignored, and given the rates of malignancy in our series, oncologists are ideally suited for this task.


2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Hirotaka Muraoka ◽  
Naohisa Hirahara ◽  
Kotaro Ito ◽  
Takumi Kondo ◽  
Shungo Ichiki ◽  
...  

Abstract Background Different magnetic resonance imaging (MRI) sequences are frequently used to examine bone marrow in the jaw, including short tau inversion recovery (STIR). MRI is a sensitive method for detecting bone marrow lesions. Currently, pantomography and computed tomography (CT) are used frequently for preoperative dental implant treatment. However, no study has evaluated bone marrow edema around dental implants using MRI. This study aimed to assess bone marrow edema in the jaw around dental implants using brain magnetic resonance images. Methods This retrospective cohort study was approved by our university ethics committee (EC19-011). A total of 17 patients (170 sites) who underwent brain MRI between April 2010 and March 2016 were analyzed. All subjects underwent scanning more than 3 years after implant placement. This study investigated two bone marrow signals (with implant site and without implant site). These two groups were then compared using Fisher’s exact test. The Mann–Whitney U test was used to analyze bone marrow signal intensity as the dependent variable and the long and short-axis diameters of the implant as the independent variables. Results The were 22/31 sites (71%) and 38/139 sites (27%) of bone marrow edema in the dental implants and without dental implants groups, respectively (p < 0.001). Furthermore, there was a significant correlation between bone marrow signal intensity and the short-axis diameter of the implant (p < 0.001). Conclusion The signal intensity in the bone marrow sites in the jaw with dental implants was significantly higher than that in the sites without dental implants. The present study findings suggest that dental implants are a potential cause of bone marrow edema in the jaw.


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