This causes increased vascularity and increase in size (hypertrophy) of the gland. Pulsating metastases occur because of their increased vascularity. Intravenous contrast material is needed to evaluate lesion vascularity. The goal is to maximize leanness and increase the visibility of veins, or "vascularity". The increased vascularity and edema of the woman's vagina gradually resolves in about three weeks. Vascularity, as well as vascular permeability, is enhanced in the decidualizing endometrium. With color Doppler ultrasonography, the vascularity of the undescended testis is poor. Genetics and androgenic hormones will affect vascularity, as will ambient temperature. One study in particular evaluated the effects of DII4 on tumor vascularity and growth. Due to the vascularity of the vulva, it may form a large hematoma when injured. In the painful stage, such hypoechoic material may demonstrate increased vascularity with Doppler ultrasound. Long, thin-walled, capillary-sized vessels represent the vascularity of CNC. Serial monitoring of nodal size and vascularity are useful in assessing treatment response. Normal vascularity does not exclude intermittent torsion. This is due to the high vascularity of those organs.