Cyst-like lesions around the knee

Changed by Yuranga Weerakkody, 17 Mar 2015

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There is broad differential for cyst like lesions around the knee.

The list includes

Cysts

synovial cyst
- popliteal synovial cyst - Baker's cyst
ganglion cyst
- intra-articular ganglion cyst
- extra-articular ganglion cyst
  - periosteal ganglion cyst
  - nerve sheath ganlgion cyst
    - common peroneal nerve sheath ganglion cyst
meniscal cyst / parameniscal cyst
intraosseous cyst
- subarticular degenerative cyst - geode
- intraosseous ganglion cyst
- insertional cyst
infective cyst - abscess

Cyst like lesions

distended knee bursae
- suprapatella bursa - subpatella bursitis
- prepatella bursa - prepatella bursitis
- superficial infrapatellar bursa - s uperficial infrapatellar bursitis
- deep infrapatellar bursa - deep infrapatellar bursitis
- anserine bursa - pes anserinus bursitis
- iliotibial bursa - iliotibial bursitis
- semimembranosus-tibial collateral ligament (SMTCL) bursa - semimembranosus-tibial collateral ligament (SMTCL) bursitis
- medial collateral ligament bursa - medial collateral ligament bursitis
- fibular collateral ligament (FCL)-biceps femoris bursa - fibular collateral ligament (FCL)-biceps femoris bursitis
cystic haematoma - post traumatic cyst
normal recesses
- posterior femoral recess (subgastrocnemius recess)
- posterior capsular recess
- subpopliteal recess
- suprahoffatic recess
- infrahoffatic recess
- anterior tibial recess
- central synovial recess
- parameniscal recess
popliteal arterial aneurysm - pseuaneurysm
popliteal venous varix
solid lesions with cyst like components
- cystic degeneration or myxoid stroma in tumours such as
  - synovial sarcoma
  - dedifferentiated sarcoma
  - myxoid liposarcoma
  - metastases
  - benign synovial haemangioma

~~-<a title="Synovial cysts" href="/articles/synovial-cyst">synovial cyst</a><ul><li><a title="Popliteal synovial cyst" href="/articles/baker-cyst-1">popliteal synovial cyst</a></li></ul>~~
+<a href="/articles/synovial-cyst">synovial cyst</a><ul><li>
+<a href="/articles/baker-cyst-1">popliteal synovial cyst</a> - <a title="Baker's cysts" href="/articles/baker-cyst-1">Baker's cyst</a>
+</li></ul>
~~-<a title="Ganglion cysts" href="/articles/ganglion-cyst">ganglion cyst</a><ul>~~
+<a href="/articles/ganglion-cyst">ganglion cyst</a><ul>
~~-<a title="intra-articular ganglion cyst" href="/articles/intra-articular-ganglion-cyst">intra-articular ganglion cyst</a><ul>~~
~~-<li><a title="ACL ganglion cyst" href="/articles/acl-ganglion-cyst">ACL ganglion cyst</a></li>~~
~~-<li><a title="PCL ganglion cyst" href="/articles/pcl-ganglion-cyst">PCL ganglion cyst</a></li>~~
~~-<li><a title="Hoffa fat pad ganglion cyst" href="/articles/hoffa-fat-pad-ganglion-cyst">Hoffa fat pad ganglion cyst</a></li>~~
+<a href="/articles/intra-articular-ganglion-cyst">intra-articular ganglion cyst</a><ul>
+<li><a href="/articles/acl-ganglion-cyst">ACL ganglion cyst</a></li>
+<li><a href="/articles/pcl-ganglion-cyst">PCL ganglion cyst</a></li>
+<li><a href="/articles/hoffa-fat-pad-ganglion-cyst">Hoffa fat pad ganglion cyst</a></li>
~~-<a title="extra-articular ganglion cyst" href="/articles/extra-articular-ganglion-cyst">extra-articular ganglion cyst</a><ul>~~
~~-<li><a title="periosteal ganglion cyst" href="/articles/periosteal-ganglion-cyst">periosteal ganglion cyst</a></li>~~
+<a href="/articles/extra-articular-ganglion-cyst">extra-articular ganglion cyst</a><ul>
+<li><a href="/articles/periosteal-ganglion-cyst">periosteal ganglion cyst</a></li>
-<a title="nerve sheath ganlgion cyst" href="/articles/nerve-sheath-ganlgion-cyst">nerve sheath ganlgion cyst</a> <ul><li><a title="common peroneal nerve sheath ganglion cyst" href="/articles/common-peroneal-nerve-sheath-ganglion-cyst">common peroneal nerve sheath ganglion cyst</a></li></ul>
+<a href="/articles/nerve-sheath-ganlgion-cyst">nerve sheath ganlgion cyst</a> <ul><li><a href="/articles/common-peroneal-nerve-sheath-ganglion-cyst">common peroneal nerve sheath ganglion cyst</a></li></ul>
~~-<a title="Meniscal cyst" href="/articles/meniscal-cyst">meniscal cyst</a> / <a title="Parameniscal cyst" href="/articles/meniscal-cyst">parameniscal cyst</a>~~
+<a href="/articles/meniscal-cyst">meniscal cyst</a> / <a href="/articles/meniscal-cyst">parameniscal cyst</a>
~~-<a title="intraosseous cyst" href="/articles/intraosseous-cyst">intraosseous cyst</a><ul>~~
~~-<li>subarticular degenerative cyst - <a title="Geode" href="/articles/geode">geode</a>~~
+<a href="/articles/intraosseous-cyst">intraosseous cyst</a><ul>
+<li>subarticular degenerative cyst - <a href="/articles/geode">geode</a>
~~-<li><a title="insertional cyst" href="/articles/insertional-cyst">insertional cyst</a></li>~~
+<li><a href="/articles/insertional-cyst">insertional cyst</a></li>
+<li>infective cyst - abscess</li>
~~-<li>distended <a title="Knee bursae" href="/articles/knee-bursae">knee bursae</a><ul>~~
~~-<li>suprapatella bursa - <a title="subpatella bursitis" href="/articles/subpatella-bursitis">subpatella bursitis</a>~~
+<li>distended <a href="/articles/knee-bursae">knee bursae</a><ul>
+<li>suprapatella bursa - <a href="/articles/subpatella-bursitis">subpatella bursitis</a>
+</li>
+<li>prepatella bursa - <a href="/articles/prepatella-bursitis">prepatella bursitis</a>
+</li>
+<li>superficial infrapatellar bursa - <a href="/articles/superficial-infrapatellar-bursitis">s</a><a href="/articles/prepatella-bursitis">uperficial infrapatellar bursitis</a>
+</li>
+<li>deep infrapatellar bursa - <a href="/articles/deep-infrapatellar-bursitis">deep infrapatellar bursitis </a>
+</li>
+<li>anserine bursa - <a href="/articles/pes-anserinus-bursitis">pes anserinus bursitis</a>
~~-<li>prepatella bursa - <a title="prepatella bursitis" href="/articles/prepatella-bursitis">prepatella bursitis</a>~~
+<li>iliotibial bursa - <a href="/articles/iliotibial-bursitis">iliotibial bursitis</a>
-<li>superficial infrapatellar bursa - <a title="superficial infrapatellar bursitis" href="/articles/superficial-infrapatellar-bursitis">s</a><a title="prepatella bursitis" href="/articles/prepatella-bursitis">uperficial infrapatellar bursitis</a>
+<li>semimembranosus-tibial collateral ligament (SMTCL) bursa - <a href="/articles/semimembranosus-tibial-collateral-ligament-smtcl-bursitis">semimembranosus-tibial collateral ligament (SMTCL) bursitis</a>
~~-<li>deep infrapatellar bursa - <a title="deep infrapatellar bursitis " href="/articles/deep-infrapatellar-bursitis">deep infrapatellar bursitis </a>~~
+<li>medial collateral ligament bursa - <a href="/articles/medial-collateral-ligament-bursitis">medial collateral ligament bursitis</a>
~~-<li>anserine bursa - <a title="pes anserinus bursitis" href="/articles/pes-anserinus-bursitis">pes anserinus bursitis</a>~~
+<li>fibular collateral ligament (FCL)-biceps femoris bursa - <a href="/articles/fibular-collateral-ligament-fcl-biceps-femoris-bursitis">fibular collateral ligament (FCL)-biceps femoris bursitis</a>
~~-<li>cystic haematoma</li>~~
+<li>cystic haematoma - post traumatic cyst</li>
~~-<a title="posterior femoral recess" href="/articles/posterior-femoral-recess">posterior femoral recess</a> (subgastrocnemius recess) </li>~~
+<a href="/articles/posterior-femoral-recess">posterior femoral recess</a> (subgastrocnemius recess) </li>
~~-<a title="posterior capsular recess" href="/articles/posterior-capsular-recess">posterior capsular recess</a> </li>~~
~~-<li><a title="subpopliteal recess" href="/articles/subpopliteal-recess">subpopliteal recess</a></li>~~
~~-<li><a title="suprahoffatic recess" href="/articles/suprahoffatic-recess">suprahoffatic recess</a></li>~~
~~-<li><a title="infrahoffatic recess" href="/articles/infrahoffatic-recess">infrahoffatic recess</a></li>~~
~~-<li><a title="anterior tibial recess" href="/articles/anterior-tibial-recess">anterior tibial recess</a></li>~~
~~-<li><a title="central synovial recess" href="/articles/central-synovial-recess">central synovial recess</a></li>~~
~~-<li><a title="parameniscal recess" href="/articles/parameniscal-recess">parameniscal recess</a></li>~~
+<a href="/articles/posterior-capsular-recess">posterior capsular recess</a> </li>
+<li><a href="/articles/subpopliteal-recess">subpopliteal recess</a></li>
+<li><a href="/articles/suprahoffatic-recess">suprahoffatic recess</a></li>
+<li><a href="/articles/infrahoffatic-recess">infrahoffatic recess</a></li>
+<li><a href="/articles/anterior-tibial-recess">anterior tibial recess</a></li>
+<li><a href="/articles/central-synovial-recess">central synovial recess</a></li>
+<li><a href="/articles/parameniscal-recess">parameniscal recess</a></li>
~~-<a title="popliteal arterial aneurysm" href="/articles/popliteal-arterial-aneurysm">popliteal arterial aneurysm</a> - pseuaneurysm</li>~~
~~-<li><a title="popliteal venous varix" href="/articles/popliteal-venous-varix">popliteal venous varix</a></li>~~
+<a href="/articles/popliteal-arterial-aneurysm">popliteal arterial aneurysm</a> - pseuaneurysm</li>
+<li><a href="/articles/popliteal-venous-varix">popliteal venous varix</a></li>
~~-<li>synovial sarcoma</li>~~
+<li><a href="/articles/synovial-sarcoma">synovial sarcoma</a></li>
~~-<li>myxoid liposarcoma</li>~~
+<li><a href="/articles/myxoid-liposarcoma">myxoid liposarcoma</a></li>
~~-<li>benign synovial haemangioma </li>~~
+<li>benign <a href="/articles/synovial-haemangioma">synovial haemangioma</a> </li>

References changed:

1. Perdikakis E, Skiadas V. MRI characteristics of cysts and "cyst-like" lesions in and around the knee: what the radiologist needs to know. Insights Imaging. 2013;4 (3): 257-72. <a href="http://dx.doi.org/10.1007/s13244-013-0240-1">doi:10.1007/s13244-013-0240-1</a> - <a href="http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3675245">Free text at pubmed</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/23479129">Pubmed citation</a>
5. Janzen DL, Peterfy CG, Forbes JR et-al. Cystic lesions around the knee joint: MR imaging findings. AJR Am J Roentgenol. 1994;163 (1): 155-61. <a href="http://dx.doi.org/10.2214/ajr.163.1.8010203">doi:10.2214/ajr.163.1.8010203</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/8010203">Pubmed citation</a>
2. Beaman FD, Peterson JJ. MR imaging of cysts, ganglia, and bursae about the knee. Radiol. Clin. North Am. 2007;45 (6): 969-82, vi. <a href="http://dx.doi.org/10.1016/j.rcl.2007.08.005">doi:10.1016/j.rcl.2007.08.005</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/17981178">Pubmed citation</a>
3. Marra MD, Crema MD, Chung M et-al. MRI features of cystic lesions around the knee. Knee. 2008;15 (6): 423-38. <a href="http://dx.doi.org/10.1016/j.knee.2008.04.009">doi:10.1016/j.knee.2008.04.009</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/18559292">Pubmed citation</a>
4. McCarthy CL, McNally EG. The MRI appearance of cystic lesions around the knee. Skeletal Radiol. 2004;33 (4): 187-209. <a href="http://dx.doi.org/10.1007/s00256-003-0741-y">doi:10.1007/s00256-003-0741-y</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/14991250">Pubmed citation</a>
6. Steinbach LS, Stevens KJ. Imaging of cysts and bursae about the knee. Radiol. Clin. North Am. 2013;51 (3): 433-54. <a href="http://dx.doi.org/10.1016/j.rcl.2012.10.005">doi:10.1016/j.rcl.2012.10.005</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/23622093">Pubmed citation</a>

Systems changed:

Musculoskeletal

Sections changed:

Gamuts

Images Changes:

Image ( create )

Image 1 MRI (T1 C+ fat sat) ( create )

Image 2 MRI (STIR) ( create )

Image 3 MRI (T2 fat sat) ( create )

Image 4 MRI (PD) ( create )

Image 5 MRI (PD FS) ( create )

Image 6 MRI (Gradient Echo) ( create )

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