Semin Musculoskelet Radiol 2009; 13(4): 303-325
DOI: 10.1055/s-0029-1242186
© Thieme Medical Publishers

MR Imaging of Synovial Disorders of the Knee

Christine B. Chung1 , 2 , Ronald Boucher3 , Donald Resnick1 , 2
  • 1Department of Radiology, University of California San Diego, La Jolla, California
  • 2VA Healthcare System, San Diego, La Jolla, California
  • 3Department of Radiology, Naval Medical Center San Diego, San Diego, California
Further Information

Publication History

Publication Date:
04 November 2009 (online)

ABSTRACT

Synovial membranes line the diarthrodial (movable) joints, bursae, and tendon sheaths of the body. The primary function of this specialized, vascular tissue is to serve as a filter system that lubricates and nourishes the articular structures as well as serving as a shock-absorber. The synovium is affected by a variety of disorders that can be localized to a specific articulation or can be systemic in nature. These include inflammatory, infectious, degenerative, traumatic, or neoplastic categories of disease. Further, MR imaging provides an excellent non-invasive tool for the evaluation of the synovium and synovial-based processes. This article will discuss technical considerations pertinent to the MR imaging evaluation of synovial processes in the knee; will review the synovial and bursal anatomy of the knee as well as the imaging characteristics of general synovial abnormalities and their diagnostic implications. In addition, it will review specific synovial processes and their characteristic MR imaging findings.

REFERENCES

  • 1 Adam G, Dammer M, Bohndorf K, Christoph R, Fenke F, Günther R W. Rheumatoid arthritis of the knee: value of gadopentetate dimeglumine-enhanced MR imaging.  AJR Am J Roentgenol. 1991;  156(1) 125-129
  • 2 Beltran J, Caudill J L, Herman L A et al.. Rheumatoid arthritis: MR imaging manifestations.  Radiology. 1987;  165(1) 153-157
  • 3 Kursunoglu-Brahme S, Riccio T, Weisman M H et al.. Rheumatoid knee: role of gadopentetate-enhanced MR imaging.  Radiology. 1990;  176(3) 831-835
  • 4 Bredella M A, Tirman P F, Wischer T K, Belzer J, Taylor A, Genant H K. Reactive synovitis of the knee joint: MR imaging appearance with arthroscopic correlation.  Skeletal Radiol. 2000;  29(10) 577-582
  • 5 Singson R D, Zalduondo F M. Value of unenhanced spin-echo MR imaging in distinguishing between synovitis and effusion of the knee.  AJR Am J Roentgenol. 1992;  159(3) 569-571
  • 6 Boegård T, Johansson A, Rudling O, Petersson I, Forslind K, Jonsson K. Gadolinium-DTPA-enhanced MR imaging in asymptomatic knees.  Acta Radiol. 1996;  37(6) 877-882
  • 7 König H, Sieper J, Wolf K J. Rheumatoid arthritis: evaluation of hypervascular and fibrous pannus with dynamic MR imaging enhanced with Gd-DTPA.  Radiology. 1990;  176(2) 473-477
  • 8 Ostergaard M, Gideon P, Henriksen O, Lorenzen I. Synovial volume—a marker of disease severity in rheumatoid arthritis? Quantification by MRI.  Scand J Rheumatol. 1994;  23(4) 197-202
  • 9 Ostergaard M, Lorenzen I, Henriksen O. Dynamic gadolinium-enhanced MR imaging in active and inactive immunoinflammatory gonarthritis.  Acta Radiol. 1994;  35(3) 275-281
  • 10 Whitten C G, Moore T E, Yuh W T, Kathol M H, Renfrew D L, Walker C W. The use of intravenous gadopentetate dimeglumine in magnetic resonance imaging of synovial lesions.  Skeletal Radiol. 1992;  21(4) 215-218
  • 11 Winalski C S, Aliabadi P, Wright R J, Shortkroff S, Sledge C B, Weissman B N. Enhancement of joint fluid with intravenously administered gadopentetate dimeglumine: technique, rationale, and implications.  Radiology. 1993;  187(1) 179-185
  • 12 Björkengren A G, Geborek P, Rydholm U, Holtås S, Petterson H. MR imaging of the knee in acute rheumatoid arthritis: synovial uptake of gadolinium-DOTA.  AJR Am J Roentgenol. 1990;  155(2) 329-332
  • 13 Ostergaard M, Stoltenberg M, Henriksen O, Lorenzen I. The accuracy of MRI-determined synovial membrane and joint effusion volumes in arthritis. A comparison of pre- and post-aspiration volumes.  Scand J Rheumatol. 1995;  24(5) 305-311
  • 14 Ostergaard M. Different approaches to synovial membrane volume determination by magnetic resonance imaging: manual versus automated segmentation.  Br J Rheumatol. 1997;  36(11) 1166-1177
  • 15 Østergaard M, Klarlund M. Importance of timing of post-contrast MRI in rheumatoid arthritis: what happens during the first 60 minutes after IV gadolinium-DTPA?.  Ann Rheum Dis. 2001;  60(11) 1050-1054
  • 16 Østergaard M, Szkudlarek M. Magnetic resonance imaging of soft tissue changes in rheumatoid arthritis wrist joints.  Semin Musculoskelet Radiol. 2001;  5(3) 257-274
  • 17 Reiser M F, Bongartz G P, Erlemann R et al.. Gadolinium-DTPA in rheumatoid arthritis and related diseases: first results with dynamic magnetic resonance imaging.  Skeletal Radiol. 1989;  18(8) 591-597
  • 18 Tamai K, Yamato M, Yamaguchi T, Ohno W. Dynamic magnetic resonance imaging for the evaluation of synovitis in patients with rheumatoid arthritis.  Arthritis Rheum. 1994;  37(8) 1151-1157
  • 19 Clunie G, Hall-Craggs M A, Paley M N et al.. Measurement of synovial lining volume by magnetic resonance imaging of the knee in chronic synovitis.  Ann Rheum Dis. 1997;  56(9) 526-534
  • 20 Eckhardt B P, Hernandez R J. Pigmented villonodular synovitis: MR imaging in pediatric patients.  Pediatr Radiol. 2004;  34(12) 943-947
  • 21 Warwick PLWR Gray's Anatomy. 36th ed. Philadelphia, PA; WB Saunders 1980
  • 22 De Maeseneer M, Van Roy F, Lenchik L, Barbaix E, De Ridder F, Osteaux M. Three layers of the medial capsular and supporting structures of the knee: MR imaging-anatomic correlation.  Radiographics. 2000;  20 Spec No S83-S89
  • 23 De Maeseneer M, Shahabpour M, Van Roy F et al.. MR imaging of the medial collateral ligament bursa: findings in patients and anatomic data derived from cadavers.  AJR Am J Roentgenol. 2001;  177(4) 911-917
  • 24 García-Valtuille R, Abascal F, Cerezal L et al.. Anatomy and MR imaging appearances of synovial plicae of the knee.  Radiographics. 2002;  22(4) 775-784
  • 25 Boles C A, Martin D F. Synovial plicae in the knee.  AJR Am J Roentgenol. 2001;  177(1) 221-227
  • 26 Schweitzer M E, Falk A, Berthoty D, Mitchell M, Resnick D. Knee effusion: normal distribution of fluid.  AJR Am J Roentgenol. 1992;  159(2) 361-363
  • 27 Kolman B H, Daffner R H, Sciulli R L, Soehnlen M W. Correlation of joint fluid and internal derangement on knee MRI.  Skeletal Radiol. 2004;  33(2) 91-95
  • 28 Segami N, Nishimura M, Kaneyama K, Miyamaru M, Sato J, Murakami K I. Does joint effusion on T2 magnetic resonance images reflect synovitis? Comparison of arthroscopic findings in internal derangements of the temporomandibular joint.  Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2001;  92(3) 341-345
  • 29 Resnick D. Common disorders of synovium-lined joints: pathogenesis, imaging abnormalities, and complications.  AJR Am J Roentgenol. 1988;  151(6) 1079-1093
  • 30 Blyth T, Hunter J, Madhok R, Vallance R. Subsynovial vascular abnormality causing recurrent hemarthrosis in an 84-year-old man.  J Rheumatol. 1995;  22(3) 552-553
  • 31 Martin D J, Merenda G, McDonald D J, Sundaram M. Recurrent hemarthrosis associated with gout.  Clin Orthop Relat Res. 1992;  (277) 262-265
  • 32 Lugo-Olivieri C H, Scott Jr W W, Zerhouni E A. Fluid-fluid levels in injured knees: do they always represent lipohemarthrosis?.  Radiology. 1996;  198(2) 499-502
  • 33 SanDretto M A, Carrera G F. The double fat fluid level: lipohemarthrosis of the knee associated with suprapatellar plica synovialis.  Skeletal Radiol. 1983;  10(1) 30-33
  • 34 Ryu K N, Jaovisidha S, De Maeseneer M, Jacobson J, Sartoris D J, Resnick D. Evolving stages of lipohemarthrosis of the knee. Sequential magnetic resonance imaging findings in cadavers with clinical correlation.  Invest Radiol. 1997;  32(1) 7-11
  • 35 Brossmann J, Preidler K W, Daenen B et al.. Imaging of osseous and cartilaginous intraarticular bodies in the knee: comparison of MR imaging and MR arthrography with CT and CT arthrography in cadavers.  Radiology. 1996;  200(2) 509-517
  • 36 Chung C, Coley B D, Martin L C. Rice bodies in juvenile rheumatoid arthritis.  AJR Am J Roentgenol. 1998;  170(3) 698-700
  • 37 Boles C A, Ward Sr W G. Loose fragments and other debris: miscellaneous synovial and marrow disorders.  Magn Reson Imaging Clin N Am. 2000;  8(2) 371-390
  • 38 Pagnoux C, Lhotellier L, Marek J J, Ballard M, Chazerain P, Ziza J M. Synovial cysts of the proximal tibiofibular joint: three case reports.  Joint Bone Spine. 2002;  69(3) 331-333
  • 39 Ortega R, Fessell D P, Jacobson J A, Lin J, Van Holsbeeck M T, Hayes C W. Sonography of ankle ganglia with pathologic correlation in 10 pediatric and adult patients.  AJR Am J Roentgenol. 2002;  178(6) 1445-1449
  • 40 McCarthy C L, McNally E G. The MRI appearance of cystic lesions around the knee.  Skeletal Radiol. 2004;  33(4) 187-209
  • 41 Ehara S. Communication of the ganglion with the joint and the tendon sheath.  AJR Am J Roentgenol. 2003;  180(2) 541-542 author reply 542
  • 42 Niki Y, Matsumoto H, Otani T, Yoshimine F, Inokuchi W, Morisue H. Gigantic popliteal synovial cyst caused by wear particles after total knee arthroplasty.  J Arthroplasty. 2003;  18(8) 1071-1075
  • 43 Andonopoulos A P, Meimaris N, Yiannopoulos G, Pastromas V, Dimopoulos P. Large synovial cysts originating from the sternoclavicular joints in a patient with rheumatoid arthritis.  Ann Rheum Dis. 2003;  62(11) 1119-1120
  • 44 Hill C L, Gale D R, Chaisson C E et al.. Periarticular lesions detected on magnetic resonance imaging: prevalence in knees with and without symptoms.  Arthritis Rheum. 2003;  48(10) 2836-2844
  • 45 Tschirch F T, Schmid M R, Pfirrmann C W, Romero J, Hodler J, Zanetti M. Prevalence and size of meniscal cysts, ganglionic cysts, synovial cysts of the popliteal space, fluid-filled bursae, and other fluid collections in asymptomatic knees on MR imaging.  AJR Am J Roentgenol. 2003;  180(5) 1431-1436
  • 46 Miller T T, Staron R B, Koenigsberg T, Levin T L, Feldman F. MR imaging of Baker cysts: association with internal derangement, effusion, and degenerative arthropathy.  Radiology. 1996;  201(1) 247-250
  • 47 Malghem J, Vande berg B C, Lebon C, Lecouvet F E, Maldague B E. Ganglion cysts of the knee: articular communication revealed by delayed radiography and CT after arthrography.  AJR Am J Roentgenol. 1998;  170(6) 1579-1583
  • 48 Kim R S, Kim K T, Lee J Y, Lee K Y. Ganglion cysts of the posterior cruciate ligament.  Arthroscopy. 2003;  19(6) E36-E40
  • 49 Bergin D, Morrison W B, Carrino J A, Nallamshetty S N, Bartolozzi A R. Anterior cruciate ligament ganglia and mucoid degeneration: coexistence and clinical correlation.  AJR Am J Roentgenol. 2004;  182(5) 1283-1287
  • 50 Muhle C, Ahn J M, Yeh L et al.. Iliotibial band friction syndrome: MR imaging findings in 16 patients and MR arthrographic study of six cadaveric knees.  Radiology. 1999;  212(1) 103-110
  • 51 Bond J R, Sundaram M, Beckenbaugh R D. Radiologic case study: partial tear of the distal biceps tendon with mass-like bicipitoradial bursitis and associated hyperostosis of the radial tuberosity.  Orthopedics. 2003;  26(4) 376, 448-450
  • 52 Donahue F, Turkel D, Mnaymneh W, Ghandur-Mnaymneh L. Hemorrhagic prepatellar bursitis.  Skeletal Radiol. 1996;  25(3) 298-301
  • 53 Dawn B, Williams J K, Walker S E. Prepatellar bursitis: a unique presentation of tophaceous gout in an normouricemic patient.  J Rheumatol. 1997;  24(5) 976-978
  • 54 Kataria R K, Chaiamnuay S, Jacobson L D, Brent L H. Subacromial bursitis with rice bodies as the presenting manifestation of rheumatoid arthritis.  J Rheumatol. 2003;  30(6) 1354-1355
  • 55 Cimmino M A, Bountis C, Silvestri E, Garlaschi G, Accardo S. An appraisal of magnetic resonance imaging of the wrist in rheumatoid arthritis.  Semin Arthritis Rheum. 2000;  30(3) 180-195
  • 56 Ostergaard M, Hansen M, Stoltenberg M, Lorenzen I. Quantitative assessment of the synovial membrane in the rheumatoid wrist: an easily obtained MRI score reflects the synovial volume.  Br J Rheumatol. 1996;  35(10) 965-971
  • 57 Lee J, Lee S K, Suh J S, Yoon M, Song J H, Lee C H. Magnetic resonance imaging of the wrist in defining remission of rheumatoid arthritis.  J Rheumatol. 1997;  24(7) 1303-1308
  • 58 Ostergaard M, Gideon P, Sørensen K et al.. Scoring of synovial membrane hypertrophy and bone erosions by MR imaging in clinically active and inactive rheumatoid arthritis of the wrist.  Scand J Rheumatol. 1995;  24(4) 212-218
  • 59 Tonolli-Serabian I, Poet J L, Dufour M, Carasset S, Mattei J P, Roux H. Magnetic resonance imaging of the wrist in rheumatoid arthritis: comparison with other inflammatory joint diseases and control subjects.  Clin Rheumatol. 1996;  15(2) 137-142
  • 60 Foley-Nolan D, Stack J P, Ryan M et al.. Magnetic resonance imaging in the assessment of rheumatoid arthritis—a comparison with plain film radiographs.  Br J Rheumatol. 1991;  30(2) 101-106
  • 61 McQueen F M, Stewart N, Crabbe J et al.. Magnetic resonance imaging of the wrist in early rheumatoid arthritis reveals a high prevalence of erosions at four months after symptom onset.  Ann Rheum Dis. 1998;  57(6) 350-356
  • 62 Klarlund M, Ostergaard M, Gideon P, Sørensen K, Jensen K E, Lorenzen I. Wrist and finger joint MR imaging in rheumatoid arthritis.  Acta Radiol. 1999;  40(4) 400-409
  • 63 Graif M, Schweitzer M E, Deely D, Matteucci T. The septic versus nonseptic inflamed joint: MRI characteristics.  Skeletal Radiol. 1999;  28(11) 616-620
  • 64 Imhof H, Nöbauer-Huhmann I M, Gahleitner A et al.. Pathophysiology and imaging in inflammatory and blastomatous synovial diseases.  Skeletal Radiol. 2002;  31(6) 313-333
  • 65 Lund P J, Chan K M, Unger E C, Galgiani T N, Pitt M J. Magnetic resonance imaging in coccidioidal arthritis.  Skeletal Radiol. 1996;  25(7) 661-665
  • 66 Strouse P J, Londy F, DiPietro M A, Teo E L, Chrisp C E, Doi K. MRI evaluation of infectious and non-infectious synovitis: preliminary studies in a rabbit model.  Pediatr Radiol. 1999;  29(5) 367-371
  • 67 Erdman W A, Tamburro F, Jayson H T, Weatherall P T, Ferry K B, Peshock R M. Osteomyelitis: characteristics and pitfalls of diagnosis with MR imaging.  Radiology. 1991;  180(2) 533-539
  • 68 Brown J J, vanSonnenberg E, Gerber K H, Strich G, Wittich G R, Slutsky R A. Magnetic resonance relaxation times of percutaneously obtained normal and abnormal body fluids.  Radiology. 1985;  154(3) 727-731
  • 69 Sawlani V, Chandra T, Mishra R N, Aggarwal A, Jain U K, Gujral R B. MRI features of tuberculosis of peripheral joints.  Clin Radiol. 2003;  58(10) 755-762
  • 70 Sugimoto H, Takeda A, Hyodoh K. Early-stage rheumatoid arthritis: prospective study of the effectiveness of MR imaging for diagnosis.  Radiology. 2000;  216(2) 569-575
  • 71 Sugimoto H, Takeda A, Masuyama J, Furuse M. Early-stage rheumatoid arthritis: diagnostic accuracy of MR imaging.  Radiology. 1996;  198(1) 185-192
  • 72 Narváez J A, Narváez J, Roca Y, Aguilera C. MR imaging assessment of clinical problems in rheumatoid arthritis.  Eur Radiol. 2002;  12(7) 1819-1828
  • 73 Huang T L, Fossier C, Ray R D, Ghosh L. Intra-articular rheumatoid nodule of the knee joint associated with recurrent subluxation of the patella. A case report.  J Bone Joint Surg Am. 1979;  61(3) 438-440
  • 74 Kampner S L, Kuzell W. Intra-articular rheumatoid nodule of the knee joint.  Clin Orthop Relat Res. 1976;  (114) 243-246
  • 75 McGonagle D, Gibbon W, Emery P. Classification of inflammatory arthritis by enthesitis.  Lancet. 1998;  352(9134) 1137-1140
  • 76 Bencardino J T, Hassankhani A. Calcium pyrophosphate dihydrate crystal deposition disease.  Semin Musculoskelet Radiol. 2003;  7(3) 175-185
  • 77 Steinbach L S. Calcium pyrophosphate dihydrate and calcium hydroxyapatite crystal deposition diseases: imaging perspectives.  Radiol Clin North Am. 2004;  42(1) 185-205, vii
  • 78 Burke B J, Escobedo E M, Wilson A J, Hunter J C. Chondrocalcinosis mimicking a meniscal tear on MR imaging.  AJR Am J Roentgenol. 1998;  170(1) 69-70
  • 79 Abreu M, Johnson K, Chung C B et al.. Calcification in calcium pyrophosphate dihydrate (CPPD) crystalline deposits in the knee: anatomic, radiographic, MR imaging, and histologic study in cadavers.  Skeletal Radiol. 2004;  33(7) 392-398
  • 80 Hayes C W, Conway W F. Calcium hydroxyapatite deposition disease.  Radiographics. 1990;  10(6) 1031-1048
  • 81 Yang I, Hayes C W, Biermann J S. Calcific tendinitis of the gluteus medius tendon with bone marrow edema mimicking metastatic disease.  Skeletal Radiol. 2002;  31(6) 359-361
  • 82 Soler T, Rodríguez E, Bargiela A, Da Riba M. Lipoma arborescens of the knee: MR characteristics in 13 joints.  J Comput Assist Tomogr. 1998;  22(4) 605-609
  • 83 Rehak D C, Fu F H. Calcification of tendon of the vastus lateralis. A case report.  Am J Sports Med. 1992;  20(2) 227-229
  • 84 Anderson S E, Bosshard C, Steinbach L S, Ballmer F T. MR imaging of calcification of the lateral collateral ligament of the knee: a rare abnormality and a cause of lateral knee pain.  AJR Am J Roentgenol. 2003;  181(1) 199-202
  • 85 Yu J S, Chung C, Recht M, Dailiana T, Jurdi R. MR imaging of tophaceous gout.  AJR Am J Roentgenol. 1997;  168(2) 523-527
  • 86 Ruiz M E, Erickson S J, Carrera G F, Hanel D P, Smith M D. Monoarticular gout following trauma: MR appearance.  J Comput Assist Tomogr. 1993;  17(1) 151-153
  • 87 Chung C B, Mohana-Borges A, Pathria M. Tophaceous gout in an amputation stump in a patient with chronic myelogenous leukemia.  Skeletal Radiol. 2003;  32(7) 429-431
  • 88 Monu J U, Pope Jr T L. Gout: a clinical and radiologic review.  Radiol Clin North Am. 2004;  42(1) 169-184
  • 89 Peloquin L U, Graham J H. Gout of the patella; report of a case.  N Engl J Med. 1955;  253(22) 979-980
  • 90 Melloni P, Valls R, Yuguero M, Sáez A. An unusual case of tophaceous gout involving the anterior cruciate ligament.  Arthroscopy. 2004;  20(9) e117-e121
  • 91 Chen C K, Yeh L R, Pan H B et al.. Intra-articular gouty tophi of the knee: CT and MR imaging in 12 patients.  Skeletal Radiol. 1999;  28(2) 75-80
  • 92 Hill C L, Gale D G, Chaisson C E et al.. Knee effusions, popliteal cysts, and synovial thickening: association with knee pain in osteoarthritis.  J Rheumatol. 2001;  28(6) 1330-1337
  • 93 Yulish B S, Lieberman J M, Strandjord S E, Bryan P J, Mulopulos G P, Modic M T. Hemophilic arthropathy: assessment with MR imaging.  Radiology. 1987;  164(3) 759-762
  • 94 Handelsman J E. The knee joint in hemophilia.  Orthop Clin North Am. 1979;  10(1) 139-173
  • 95 Rand T, Trattnig S, Male C et al.. Magnetic resonance imaging in hemophilic children: value of gradient echo and contrast-enhanced imaging.  Magn Reson Imaging. 1999;  17(2) 199-205
  • 96 Hughes T H, Sartoris D J, Schweitzer M E, Resnick D L. Pigmented villonodular synovitis: MRI characteristics.  Skeletal Radiol. 1995;  24(1) 7-12
  • 97 Masih S, Antebi A. Imaging of pigmented villonodular synovitis.  Semin Musculoskelet Radiol. 2003;  7(3) 205-216
  • 98 Ohnuma M, Sugita T, Kawamata T, Hosaka M, Yoshizumi Y, Umehara J. Pigmented villonodular synovitis of the knee with lesions of the bursae.  Clin Orthop Relat Res. 2003;  (414) 212-218
  • 99 Patkar D, Prasad S, Shah J, Patankar T, Kothari S. Pigmented villonodular synovitis: magnetic resonance features of an unusual case of bilateral hip joint involvement.  Australas Radiol. 2000;  44(4) 458-459
  • 100 Steinbach L S, Neumann C H, Stoller D W et al.. MRI of the knee in diffuse pigmented villonodular synovitis.  Clin Imaging. 1989;  13(4) 305-316
  • 101 Stacy G S, Heck R K, Peabody T D, Dixon L B. Neoplastic and tumorlike lesions detected on MR imaging of the knee in patients with suspected internal derangement: Part 2, articular and juxtaarticular entities.  AJR Am J Roentgenol. 2002;  178(3) 595-599
  • 102 Huang G S, Lee C H, Chan W P, Chen C Y, Yu J S, Resnick D. Localized nodular synovitis of the knee: MR imaging appearance and clinical correlates in 21 patients.  AJR Am J Roentgenol. 2003;  181(2) 539-543
  • 103 Wittkop B, Davies A M, Mangham D C. Primary synovial chondromatosis and synovial chondrosarcoma: a pictorial review.  Eur Radiol. 2002;  12(8) 2112-2119
  • 104 Kim S H, Hong S J, Park J S et al.. Idiopathic synovial osteochondromatosis of the hip: radiographic and MR appearances in 15 patients.  Korean J Radiol. 2002;  3(4) 254-259
  • 105 Tuckman G, Wirth C Z. Synovial osteochondromatosis of the shoulder: MR findings.  J Comput Assist Tomogr. 1989;  13(2) 360-361
  • 106 Tiao W M, Yeh L R, Lu Y C, Liang H L, Chen C K. Lipoma arborescens of the knee: a case report.  J Formos Med Assoc. 2001;  100(6) 412-415
  • 107 Ryu K N, Jaovisidha S, Schweitzer M, Motta A O, Resnick D. MR imaging of lipoma arborescens of the knee joint.  AJR Am J Roentgenol. 1996;  167(5) 1229-1232
  • 108 Sheldon P J, Forrester D M. Imaging of amyloid arthropathy.  Semin Musculoskelet Radiol. 2003;  7(3) 195-203
  • 109 Escobedo E M, Hunter J C, Zink-Brody G C, Andress D L. Magnetic resonance imaging of dialysis-related amyloidosis of the shoulder and hip.  Skeletal Radiol. 1996;  25(1) 41-48
  • 110 Amoroso E, Vitale C, Silvestro A. Spinal-cord compression due to extradural amyloidosis of the cervico-occipital hinge, in a hemodialysed patient. A case report.  J Neurosurg Sci. 2001;  45(2) 120-124
  • 111 Narváez J A, Narváez J, Aguilera C, De Lama E, Portabella F. MR imaging of synovial tumors and tumor-like lesions.  Eur Radiol. 2001;  11(12) 2549-2560
  • 112 Blacksin M F, Siegel J R, Benevenia J, Aisner S C. Synovial sarcoma: frequency of nonaggressive MR characteristics.  J Comput Assist Tomogr. 1997;  21(5) 785-789
  • 113 Jones B C, Sundaram M, Kransdorf M J. Synovial sarcoma: MR imaging findings in 34 patients.  AJR Am J Roentgenol. 1993;  161(4) 827-830

Christine B ChungM.D. 

Department of Radiology, University of California San Diego

3350 La Jolla Village Dr., La Jolla, CA 92161

Email: cbchung@ucsd.edu

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