Cavernous liver hemangioma

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Cavernous liver hemangioma
Synonyms	Hepatic hemangioma, hepatic venous malformation
Pronounce	N/A
Specialty	N/A
Symptoms	Often asymptomatic, but may include abdominal pain, nausea, vomiting
Complications	Rarely, rupture, hemorrhage, Kasabach-Merritt syndrome
Onset	Any age, often detected in adults
Duration	Lifelong
Types	N/A
Causes	Congenital vascular malformation
Risks	Female gender, oral contraceptive use, pregnancy
Diagnosis	Ultrasound, CT scan, MRI
Differential diagnosis	Hepatocellular carcinoma, focal nodular hyperplasia, metastasis
Prevention	N/A
Treatment	Usually none required, surgery if symptomatic
Medication	N/A
Prognosis	Excellent, benign condition
Frequency	Common, estimated in up to 7% of the population
Deaths	N/A

A benign liver tumor

Cavernous Liver Hemangioma

Cavernous liver hemangioma as seen on imaging.

A cavernous liver hemangioma is a benign tumor of the liver composed of clusters of blood-filled cavities. It is the most common type of benign liver tumor and is often discovered incidentally during imaging studies for other conditions.

Pathophysiology

Cavernous liver hemangiomas are composed of large, dilated blood vessels. These vascular spaces are lined by a single layer of endothelial cells and are supported by a thin layer of fibrous tissue. The exact cause of cavernous liver hemangiomas is not well understood, but they are thought to be congenital in nature, arising from a malformation of blood vessels during embryonic development.

Clinical Presentation

Most individuals with cavernous liver hemangiomas are asymptomatic and the condition is often discovered incidentally. However, in some cases, patients may experience symptoms such as abdominal pain, nausea, or a feeling of fullness. Large hemangiomas can occasionally cause complications such as hemorrhage or thrombosis.

Diagnosis

Cavernous liver hemangiomas are typically diagnosed using imaging techniques such as ultrasound, computed tomography (CT), or magnetic resonance imaging (MRI). These imaging modalities can reveal the characteristic appearance of hemangiomas, which often appear as well-defined, hyperechoic lesions on ultrasound or as hypervascular lesions on CT and MRI.

Management

In most cases, no treatment is necessary for cavernous liver hemangiomas, especially if they are asymptomatic. Regular monitoring with imaging may be recommended to ensure that the hemangioma does not grow or cause complications. In rare cases where the hemangioma is large or symptomatic, surgical intervention such as hepatectomy or embolization may be considered.

Prognosis

The prognosis for individuals with cavernous liver hemangiomas is generally excellent, as these tumors are benign and do not have malignant potential. Most patients live normal lives without any impact from the hemangioma.

See also

• Liver tumor
• Benign tumor
• Vascular malformation