All are true about liver hemangioma except
**Liver Hemangioma**
**Core Concept**
Liver hemangiomas are benign vascular tumors composed of blood vessels, typically involving the hepatic parenchyma. They are the most common benign liver tumors, often incidentally discovered during imaging studies for unrelated reasons.
**Why the Correct Answer is Right**
Liver hemangiomas are typically well-circumscribed, hypervascular lesions on imaging, often characterized by peripheral nodular enhancement with centripetal filling on contrast-enhanced CT or MRI scans. This pattern is due to the presence of slow-flowing blood vessels within the lesion, which lead to delayed enhancement. The lesions are usually asymptomatic and do not require treatment, as they are benign and non-progressive.
**Why Each Wrong Option is Incorrect**
**Option A:**
This statement is incorrect because liver hemangiomas are typically not associated with portal hypertension or liver dysfunction.
**Option B:**
This statement is incorrect because liver hemangiomas are usually not characterized by a central scar, unlike some other liver lesions such as focal nodular hyperplasia.
**Option C:**
This statement is incorrect because liver hemangiomas are not typically associated with an increased risk of malignancy or liver cancer.
**Clinical Pearl / High-Yield Fact**
The characteristic imaging appearance of liver hemangiomas can be remembered using the "pipestem" sign, where the peripheral nodular enhancement resembles the rings of a pipestem.
**Correct Answer: A. This statement is incorrect because liver hemangiomas are typically not associated with portal hypertension or liver dysfunction.**