This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
35 year old female patient presents with dysmenorrhea, not associated with nausea or vomiting. She has history of menorrhagia. Her urine pregnancy test being negative, has symmetric enlarged tender uterus. She undergoes hysterectomy and the specimen is shown below. Diagnosis 
Select and explain. 
A. Endometrial cancer, B. Adenomyosis, C. Cervical cancer, D. Endometrial hyperplasia
B: Adenomyosis
Answer: B: Adenomyosis 
Explanation: The specimen shows spongy, trabeculated myometrium texture suggestive of Adenomyosis.