RT Book, Section
A1 Friedman, Lawrence S.
A2 Papadakis, Maxine A.
A2 McPhee, Stephen J.
A2 Rabow, Michael W.
A2 McQuaid, Kenneth R.
SR Print(0)
ID 1193152703
T1 Benign Liver Neoplasms
T2 Current Medical Diagnosis & Treatment 2023
YR 2023
FD 2023
PB McGraw-Hill Education
PP New York, NY
SN 9781264687343
LK accessmedicine.mhmedical.com/content.aspx?aid=1193152703
RD 2025/07/10
AB Benign  neoplasms  of  the  liver  must  be  distinguished  from  hepatocellular  carcinoma,  intrahepatic  cholangiocarcinoma,  and  metastases  (see  Chapter  39).  The  most  common  benign  neoplasm  of  the  liver  is  the  cavernous  hemangioma,  often  an  incidental  finding  on  ultrasonography  or  CT  (eFigure  16–42).  This  lesion  may  enlarge  in  women  who  take  hormonal  therapy  and  must  be  differentiated  from  other  space-occupying  intrahepatic  lesions,  usually  by  contrast-enhanced  MRI,  CT,  or  ultrasonography  (eFigure  16–43).  Rarely,  fine-needle  biopsy  is  necessary  to  differentiate  these  lesions  and  does  not  appear  to  carry  an  increased  risk  of  bleeding.  Surgical  resection  of  cavernous  hemangiomas  is  infrequently  necessary  but  may  be  required  for  abdominal  pain  or  rapid  enlargement,  to  exclude  malignancy,  or  to  treat  Kasabach-Merritt  syndrome  (consumptive  coagulopathy  complicating  a  hemangioendothelioma  or  rapidly  growing  hemangioma,  usually  in  infants).