It is a fairly rare for benign liver lesions to cause pain and there are no specific guidelines for how to treat such situations. However, the literature contains many reports of laparoscopic partial liver resections for non-cancer diagnosis. In experienced hands, laparoscopic liver resection is a favorable alternative to open resection. Perioperative morbidity and mortality and long-term survival after laparoscopic resection appear to be comparable to those after open resections.
1.http://www.hpblondon.com/assets/Laparoscopic%20liver%20re%20EC5A1.pdf
2.Simillis C, Constantinides V, Tekkis P, et al. Laparoscopic versus open hepatic resections for benign and malignant neoplasms- a meta-analysis. Surgery. 2007;141:203–211.
3.Vibert E, Perniceni T, Levard C, et al. Laparoscopic liver resection. Br J Surg. 2006;93:67–72.
4.Laparoscopic Liver Resection for Malignant and Benign Lesions Ten-Year Norwegian Single-Center Experience Airazat M. Kazaryan,Arch Surg. 2010;145(1):34-40
Read the Layperson version here.