Atypical hepatic hemangioma: imaging features of hyalinized hemangioma

A 46 years old man, complaining about abdominal pain, was submmited to a magnetic resonance having a giant liver hemangioma as an incidental finding (Figure 1). In the follow-up, after 6 years, we observed in a T2-weighted sequence volumetric reduction of lesions’ signal in T2-weighted image (Figure 2) was observed. Temporal evolution, associated with imaging features, indicated sclerosed/hyalinized hemangioma (Figure 3).

Figure 1
Typical giant hemangioma. Axial sequences of the magnetic resonance in T1-weighted image pre- (A) and post-contrast arterial (B), portal (C) and delayed (D) phases, showing giant hemangioma in segments II and III, with peripheral and discontinued globuliforme-enhancement, and tendency to homogenization

Figure 2
Evolution of hyalinized hemangioma. Axial sequences of the magnetic resonance in T1-weighted image pre- (A) and post-contrast arterial (B), portal (C) and delayed (D) phases, showing volumetric reduction and heterogeneous enhancement pattern

Figure 3
Giant hyalinized hemangioma. Magnetic coronal and axial resonance in T2-weighted image showing characteristic high signal (A and C), and posterior signal and volume reduction after 6 years (B and D) – 17cm to 8cm

Hemangioma is the most commonly benign tumor found in the liver with a prevalence between 0.4% to 20%. These lesions have definitive diagnosis by cross-section methods (computed tomography and magnetic resonance imaging), because they present characteristic imaging findings of progressive and discontinued peripheral globuliform enhancement, in addition to high signal on T2-weighted sequences on magnetic resonance imaging. However, atypical liver hemangiomas are difficult to diagnose, and they are caused by complications such as thrombosis, heart failure, hemorrhage, or previous typical sclerosed hemangioma.⁽¹⁾

Hyalinized hemangioma can present change in enhancement pattern and characteristic signal, in addition to contour retraction.^(2-5) These cases can be mistaken with other lesions, such as intrahepatic cholangiocarcinoma,⁽⁶⁾ hepatocellular carcinoma or metastasis.⁽⁷⁾ Presumptive diagnosis is only possible when previous exams shows temporal evolution of a typical hemangioma.

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Publication Dates

• Publication in this collection
  11 June 2018
• Date of issue
  2018

History

• Received
  30 Aug 2017
• Accepted
  6 Jan 2018