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Mickey Mouse sign

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Mickey Mouse sign is amedical sign resembling the head ofMickey Mouse, theWalt Disney character. Presented for the very first time at the CHIVA's Meeting, Berlin 2002 by Dr. Lurdes Cerol,^{[citation needed]} this sign has been described as the image at thegroin when a dilatedaccessory saphenous vein (ASV) exists: thecommon femoral vein (CFV) represents the head of Mickey Mouse while thegreat saphenous vein (GSV) and the dilatedaccessory saphenous vein (ASV) represent the ears. The presence of a Mickey Mouse sign has been a great diagnostic clue to check ASV insufficiency.

Mickey Mouse Sign, the original slide, at CHIVA's Meeting, Berlin 2002"

Mickey Mouse sign in the saphenofemoral junction, showing GSV, a dilated ASV and CFV

Some authors, inspired by this sign, described an ecographic "Mickey Mouse View" at thesaphenofemoral junction in thegroin: thecommon femoral vein (CFV) represents the head of Mickey Mouse while thegreat saphenous vein (GSV) and theaccessory saphenous vein (ASV) represent the ears.^[1]

But it can be seen in different regions of the body:

Midbrain ofprogressive supranuclear palsy (PSP).^[2]
PolyostoticPaget's disease (Paget's disease affecting multiple bones); abone scintigraphy withtechnetium-99m methylene bisphosphonate shows increased uptake at the sites of disease activity. Increased scintigraphic uptake in the body and spine of thevertebrae resembles the head of Mickey Mouse.^[3]
Theportal triad inbiliary ultrasound scans, with theportal vein comprising Mickey's head and thecommon bile duct andhepatic artery his right and left ears, respectively.^[4]
Pelvic Mickey Mouse sign: bilateralinguinal vesical hernia on transverse axial imaging.^[5]
Dysmorphic Mickey Mouse RBCs:RBCs with irregular cell walls and migration ofhemoglobin into some areas creating the shape of Mickey Mouse ears.^[6] The presence of these dysmorphic cells inurine may indicateintraglomerular haemorrhage.^[7]
Ureteropelvic junction obstruction (UPJO)^[8]

References

[edit]

^Coleridge-Smith P, Labropoulos N, Partsch H, Myers K, Nicolaides A, Cavezzi A (January 2006)."Duplex ultrasound investigation of the veins in chronic venous disease of the lower limbs--UIP consensus document. Part I. Basic principles".European Journal of Vascular and Endovascular Surgery.31 (1):83–92.doi:10.1016/j.ejvs.2005.07.019.PMID 16226898.
^Sonthalia N, Ray S (September 2012)."The Hummingbird sign: a diagnostic clue for Steele-Richardson-Olszweski syndrome".BMJ Case Reports.2012: bcr2012006263.doi:10.1136/bcr-2012-006263.PMC 4543120.PMID 22987902.
^Goyal A, Boro H (November 2017)."Mickey Mouse sign in a case of polyostotic Paget's disease".Indian Journal of Case Reports.3 (4):279–80.doi:10.32677/IJCR.2017.v03.i04.038.
^Fox, J. Christian (2011-10-13).Atlas of Emergency Ultrasound. Cambridge University Press.ISBN 9781139499873.
^Singh O, Kekre NS (2017).""Flying-saucer in the pelvis" sign: An equivalent of "pelvic Mickey mouse" sign".Indian Journal of Urology.33 (2):173–174.doi:10.4103/0970-1591.203423.PMC 5396411.PMID 28469311.
^Kher, Kanwal; Schnaper, H. William; Greenbaum, Larry A. (2016-11-25).Clinical Pediatric Nephrology. CRC Press.ISBN 9781482214635.
^McClatchey, Kenneth D. (2002).Clinical Laboratory Medicine. Lippincott Williams & Wilkins.ISBN 9780683307511.
^Visveswaran, kasi (2009).Essentials of Nephrology, 2/e. BI Publications Pvt Ltd.ISBN 9788172253233.

v t e Radiologic signs
Breasts	Acorn cyst sign Teacup sign
Cardiovascular	Aortic unfolding Aortic nipple sign Cœur en sabot Dense artery sign Halo sign High-attenuation crescent sign Water bottle heart
Gastrointestinal	Bowler hat sign Coffee bean sign Colon cut-off sign Comb sign Cupola sign Double bubble Double duct sign Endoexoenteric Football sign Hampton's line Hot quadrate sign Klemm's sign Leadpipe colon Mercedes-Benz sign Mumoli's sign Omental cake Pneumatosis intestinalis Pyloric tit sign Rigler's sign Rigler's triad Sentinel loop Small bowel faeces sign Stepladder sign Whirlpool sign
Musculoskeletal	Absent bowtie sign Anteater nose sign Blade of grass sign Brim sign Celery stalking Cheerio sign Cockade sign Codfish vertebra Corduroy sign Crescent sign Dagger sign Deep lateral femoral notch sign Double posterior cruciate ligament sign Dripping candle wax sign Empty vertebral body sign Fabella sign Fairbank's changes Fat pad sign/Sail sign of the elbow Gilula's lines Growth arrest lines Hilgenreiner's line Honda sign J-shaped sella sign Klein's line Licked candy stick appearance Light bulb sign Napoleon hat sign Notching of the ribs Osteopathia striata Pencil-in-cup sign Perkin's line Polka dot sign Popcorn calcification Sandwich vertebra Scottie dog sign Shiny corner sign Terry-Thomas sign Thurstan Holland sign Trethowan's sign
Neurological	Boomerang sign Dense artery sign Dense MCA sign Dural tail sign Empty sella sign Eye of the tiger sign Face of the giant panda sign Hot nose sign Hotcross bun sign Insular ribbon sign White cerebellum sign
Oncological	Bowl of grapes sign Misty mesentery sign
Respiratory	Air crescent sign Bat wing appearance Black pleura sign Cannonball sign Chang sign Comet tail sign Continuous diaphragm sign Cottage loaf sign Crazy paving Deep sulcus sign Double bronchial wall sign Falciform ligament sign Fleischner sign Golden S sign Ground-glass opacity Hampton hump Hilum overlay sign Holly leaf sign Juxtaphrenic peak sign Kerley lines Knuckle sign Mediastinal shift Palla's sign Peribronchial cuffing Sail sign of the chest Silhouette sign Steeple sign Thumbprint sign Traction bronchiectasis Tree-in-bud sign Westermark sign
Urogenital	Bear paw sign Canga's bead symptom Drooping lily sign Faceless kidney sign Fishhook ureter sign Jackstone calculus Maiden waist deformity Putty kidney
Other	Mickey Mouse sign Rice grain calcification Ring-enhancing lesion Tram track Water lily sign

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