请问张医生，我父亲54岁，身体一直较好，2006年1月26日因感到右下腹部胀痛，并牵扯右肩疼痛，于2006年1月27日到医院做了血清化验和B超，结果如下：

谷丙转氨酶      17                                                                                                        

谷草转氨酶      32                                                                                                      

谷丙／谷草      0.5                                                                                                          

总蛋白             77.7                                                                                                    

白蛋白             51.3                                                                                                

球蛋白             26.4                                                                                              

白球比             1.9                                                                                                

总胆红素          16.3                                                                                                  

直接胆红素       3.0                                                                                                

间接胆红素       13.3                                                                                                      

葡萄糖               4.77                                                                                                  

尿素氮               3.5                                                                                            

尿酸                   318                                                                                                        

肌酐                   74                                                                                              

甘油三脂            1.29                                                                                              

总胆固醇            5.10                                                                                                

乙型肝炎表面抗原       阳性                                                                                      

甲肝抗体-IgM              阴性                                                                            

丙肝抗体                     阴性                                                                            

甲胎蛋白                     阴性

B超结果如下：

肝脏：形态大小正常，右叶最大斜径约12.3cm，实质回声稍强，光电稍多稍粗，肝左叶内可见大小约1.5×1.4cm稍强回声占位，肝内血管显示清晰，门静脉内径约1.4cm。

胆囊：大小正常，壁粗糙，囊内未见确切光团等异常回声，囊壁可见稍强回声附着，大小约0.4cm，肝内外胆管不扩张。

胰腺：形态大小正常，实质回声均匀，未见确切占位。

脾脏：形态大小正常，肋间厚度约2.7cm，实质回声均匀，未见确切占位。

2月1日再做了一次中上腹CT增强扫描，肝左内叶见一结节影，直径约3cm。动脉期呈明显强化，门静脉期延迟扫描呈低密度，脾、胆囊、双肾、胰腺大小，形态，密度，未见异常。扫描层面内未见肿大淋巴结。

请张医生看下检查结果是否能确诊为原发性肝癌，如果确诊，采取怎样的治疗方法较好。