Echogenicity means the return signal in ultrasound
examinations. stromal cells are connective tissue
cells of an organ found in the loose connective tissue. These are most often associated with the uterine mucosa (endometrium), prostate, bone marrow
precursor cells, and the ovary. Women with polycystic ovary syndrome
may also show an increase in stromal echogenicity. women with uterine tumor may show stromal ecogenecity. So please write the detail and specific.