Fig.1 Abdominalcomputedtomography(CT)on admissionrevealedaweldefinedtumorenhanced heterogeneouslyundertheliver.

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2 Fig.1 Abdominalcomputedtomography(CT)on admissionrevealedaweldefinedtumorenhanced heterogeneouslyundertheliver. Fig.3 A:Inthisarea,tumorarecharacterizedby prominentvascularitywithnumerousthinwaled blanchingvessels.tumorcelsareovoidorspin dledwithirregularnuclei.b:inthisarea,tumor celsshow socaled paternlesspatern.major itycelsarespindled. Fig.2 A:Theresectedspecimenshowedasolid andencapsulatedtumor,measuring cm in size.b:cutsurfaceofthetumorwasgraywhitecolor. α

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4 Author Year,Country Bost 5) 1995,France Levine 6) 1997,UK Guglielmi 7) 1998,Italy Murase 8) 1998,Japan Age/ Sex 50/M 57/M 61/F 59/M 62/F 34/F 57/F 32/M 68/F Table1 Reportedcaseofthesolitaryfibroustumorsoftheliver Location leftlobe S4 Treatment 83/F 72/F leftlobe 62/M leftlobe 50/F Fuksbrumer 10) 40/F 2000,USA Fuksbrumer 10) 71/F 2000,USA Fuksbrumer 10) 80/M 2000,USA Yilmaz 11) 25/F 2000,Turkey Lin 12) 75/M 2001,Taiwan Kusano 13) 58/F 2003,Japan Chithriki 14) 76/F 2004,USA Neef 4) 63/F 2004,Germany Vennarecci 15) 65/M 2005,Italy Ji 16) 46/F 2006,China Lehmann 17) 63/F 2006,France Nath 18) 61/F 2006,USA Obuz 19) 2007,Turkey Presentcase 52/M 38/F leftlobe S6 Size(cm) Malignantfindings* Prognosis alive2yearswithno mitosises(10/10hpf**) moderatenuclearatypia slightpleomorphism mitosises(2/50hpf**) focal celularatypia alive6yearswithno alive64monthswithno incidentalfindingatautopsy died2daysafterthe hypo-andhypercelular area celularatypia died6daysafterthe mitosises(3 4/10HPF**) alive1yearwithno hypercelularand hypocelularregions nuclearatypia, mitosises(8/10hpf**) hypercelularity(20 60%) focal positivesurgicalmargins alive6monthswithbone metastasis alive11monthswithno hypercelulartumor (20%) highlycelulartumor nuclearatypia hypercelularity mitosises(4/10hpf**) alive11monthswithno alive6monthswithno alive30monthswithno alive6monthswithno alive8yearswithno alive10monthswithno hypo-and hypercelulararea alive22monthswithno nuclearatypia hypercelularity mitosises(4/10hpf**) * nuclearatypia,hypercelularity,,mitosis(over4/10hpf**)** highpowerfield died11monthsafterthe becauseofmultipleliverand bonemetastasis

5 Author Kobayashi 21) Arimasa 22) Iwabuchi 23) Maeda 24) Sano 25) Takahashi 26) Ami 27) Year Table2 Reportedcaseofthehemangiopericytomasoftheliver Age/Sex 57/M 57/M 30/F 41/M 30/F 77/F Location rightand leftlobe (4tumors) Treatment rightand leftlobe S4 S7 Size(cm) Metastasis liver,lung, maxilarysinus lung lung Prognosis alive1yearafterthe alive4yearsafterthe died69daysafterthe died3monthsafter thefirstadmission

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