A 50 year old man suffering from carcinoma of prostate showed areas of sclerosis and collapse of T10 and T11 veebrae in X-ray.The spread of this cancer to the above veebrae was most probably through
C. i.e. Internal veebral plexus of veinsValve less communication exist between prostatic & veebral venous plexuses through which Prostatic carcinoma can spread to the veebral column & to the skull.QThis communicating plexus is k/a Bateson's plexusQBony metastasis of prostate is mainly osteoblastic (sclerotic)QPelvis is the most common site for bony metastasisQ followed by Lumber > Thoracic veebra.
Sacral canal
Lymphatic vessels
Internal veebral plexus of veins
Superior rectal veins