A medical image processing apparatus includes a vessel running data generating unit, a lesion site detecting unit, a vessel dominant region data generating unit, a lesion site dominant region data generating unit, and a diagnostic image data generating unit. The vessel running data generating unit generates vessel running data of a vessel. The lesion site detecting unit detects positional information of a lesion site in the vessel. The vessel dominant region data generating unit generates vessel dominant region data indicating a region dominated by the vessel in a region provided with nutrition. The lesion site dominant region data generating unit generates lesion site dominant region data indicating a region dominated by the lesion site in the region provided with nutrition. The diagnostic image data generating unit generates diagnostic image data by superimposing the vessel dominant region data and the lesion site dominant region data on morphological image data.