This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endometriosis & H, Subject name: Gynaecology & Obstetrics
For endometriotic cyst all are true EXCEPT? 
Select and explain. 
A. Homogeneous Ground glass appearance, B. Laparoscopy is indicated, C. CA 125 is a specific test, D. Associated with dysmenorrhoea
C: CA 125 is a specific test
Answer: C: CA 125 is a specific test 
Explanation: Endometrial cyst/ Chocolate cyst Represent the most impoant manifestation of endometriosis Epithelium is columnar. Beneath the epithelium, a zone of tissue containing large cells with brown cytoplasm, polyhedral in shape and resembling lutein cells is seen. Homogeneous Ground glass on TVS Investigation: Laproscopy diagnostic and therapeutic Levels of CA125 may be increased (not specific test: also increases in ovarian malignancies, tuberculosis, liver disease etc) CA 125 is a good follow up tool after treatment.