निम्नलिखित में से कौन सा रीढ़ की हड्डी का ट्यूमर प्रकृति में सौम्य (benign) माना जाता है?

A pregnant woman aged 35 years or above is at increased risk for developing which type of malignancy?

In the TNM classification system for cancer staging, ascending degrees of increase in primary tumor size and/or local extent are denoted by which designation?