<prompt> All are USG findings of PCOS except20 Follicles which are 9 mm in size in either ovaryOvarian Volume 10 ccNecklace of pearl pattern of FolliclesThick Ovarian Stroma  <response>: Cysts arrange around the periphery of ovary giving Necklace of pearl appearance on USG is Characteristic of PCOD Rotterdam PCOS Diagnostic Criteria for PCOS diagnosis : The presence of two of the three criteria is sufficient to diagnosis PCOS: menstrual cycle anomalies amenorrhea, oligomenorrhea, clinical andor biochemical HA, andor Ultrasound appearance of polycystic ovaries after all other diagnoses are ruled out. The sonographic criteria for PCOS morphology Presence of 20 or more follicles newer criteria mention 20 follicles instead of 12 since with better USGs, even smaller follicles can now be picked up in either ovary measuring 2 to 9 mm in diameter andor increased ovarian volume 10 mL. A single ovary meeting these criteria is sufficient to affix the PCO morphology 