Classification

Question 1

Classification

Answer 1

1-Based on Pathology

A. Benign Lesions

1-Vascular:
Hemangioma
Arteriovenous malformation
2-Epithelial:
Focal nodular hyperplasia (FNH)
Hepatic adenoma
3-Cystic:
Simple hepatic cyst
Polycystic liver disease
Biliary cystadenoma.
4-Infectious/Inflammatory:
Pyogenic abscess
Amoebic abscess
Hydatid cyst (Echinococcus)
B. Malignant Lesions
1-Primary:
*Hepatocellular carcinoma (HCC)
*Intrahepatic cholangiocarcinoma
*Hepatoblastoma (in children)
2-Secondary (Metastatic):

From colorectal, breast, lung, pancreas, etc.

Question 2

Classification

Answer 2

Based on Imaging Appearance

A. Solid Lesions

Hemangioma

FNH

Hepatic adenoma

HCC

Metastases

Cholangiocarcinoma

B. Cystic Lesions

Simple cyst

Hydatid cyst

Liver abscess

Biliary cystadenoma/cystadenocarcinoma