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1.  Cavernous hemangioma of the liver: factors affecting disease progression in general hepatology practice 
Background
Although for asymptomatic hepatic hemangiomas, conservative management is generally recommended, factors affecting disease course are still not very well understood.
Aim
To determine disease characteristics of cavernous hemangioma and factors affecting its progression in patients from a general hepatology clinic in Tehran, Iran.
Methods
We reviewed medical records of 198 patients with cavernous hemangioma of the liver visiting a large private hepatology clinic in Tehran from 1997 to 2007. Of a total of 198 cases, 129 could be followed up for a period of 3.2±2.5 years, and 80 of these had 1 to 5 repeat sonographies.
Results
Patients were between 27 and 84 years old (mean age 44.3±10.9), and 131 (66.2%) were female. Thirty-six patients (18.2%) had giant hemangiomas. Abdominal pain was the primary reason for evaluation in 100 (50.5%) patients. Abdominal pain at the beginning of follow-up was significantly associated with having irritable bowel syndrome (OR=8.3; 95%CI: 3.1-28.7) or other GI diseases (OR=3.9; 95%CI: 2.6-10.2), but not with hemangioma size, number or location. During follow-up, having a single giant lesion at the time of diagnosis, adjusted for age, sex and presence of IBS, was a strong predictor of persistent pain during follow-up (OR=11.1; 95%CI: 3.2-38.6). In repeat sonographies, 35% showed increased size, which was significantly associated only with having a single lesion (p=0.04).
Conclusion
Many symptoms in hepatic hemangioma are attributable to accompanying GI diseases. Patients with a single giant lesion are more likely to have persistent pain, and single lesions are more likely to grow in size.
doi:10.1097/MEG.0b013e3283451e7d
PMCID: PMC3076672  PMID: 21383624
liver; hemangioma; ultrasonography

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