system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
In a case of Dysgerminoma of ovary one of the following tumor markers is likely to be raised.
assistant
The correct answer is  Placental alkaline phosphatase (PLAP) and lactate dehydrogenase (LDH) are produced by up to 95% of dysgerminomas, and serial measurements of LDH may be useful for monitoring the disease. A karyotype should be obtained preoperatively for all premenarcheal girls, paicularly those with dysgerminomas, because of the propensity of these tumors to arise in dysgenetic gonads