RT Book, Section
A1 Jauch, Edward C.
A1 Hall, Gregory
A1 Knoop, Kevin J.
A2 Knoop, Kevin J.
A2 Stack, Lawrence B.
A2 Storrow, Alan B.
A2 Thurman, R. Jason
SR Print(0)
ID 1181040227
T1 Mucocele
T2 The Atlas of Emergency Medicine, 5e
YR 2021
FD 2021
PB McGraw-Hill
PP New York, NY
SN 9781260134940
LK accessmedicine.mhmedical.com/content.aspx?aid=1181040227
RD 2024/04/19
AB Mucoceles  are  mucous  cysts  occurring  on  the  mouth  or  lip.  Ranulas  are  mucoceles  (mucous  retention  cysts)  that  develop  in  the  floor  of  the  mouth,  arising  from  obstructed  sublingual  or  submandibular  ducts  or  smaller  minor  salivary  glands.  Initially,  the  cysts  are  small  and  barely  noticeable,  but  over  time,  they  can  expand  outward  or  deeper  into  the  neck  (plunging  ranula).  Large  cysts  can  displace  the  tongue  forward  and  upward,  making  the  patient  uncomfortable.  Unlike  those  with  sialolithiasis,  patients  with  ranulas  may  not  always  notice  an  increase  in  swelling  associated  with  eating.  Mucoceles  on  the  lip  typically  affect  the  lower  lip.  Physical  examination  reveals  a  soft,  minimally  tender,  translucent  cyst  with  dilated  veins  running  over  its  surface.  Unlike  carcinomas,  no  ulceration  is  noted  with  ranulas,  and  they  are  generally  softer.