Molar Pregnancy on Transabdominal Pelvic Ultrasound



"20 yo F presents with suprapubic abd tenderness and mild vaginal bleeding. Urine HCG is NEGATIVE.



Explanation: HCG Quant > 1,000,000. 



The Hook Effect: When the HCG is so extremely large, the qualitative urine HCG assay becomes overwhelmed and it reads as negative."



 - Dr. Christopher Kumetz @ChrisKumetz



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