ovarian cancer lesions (IMAGE) Johns Hopkins Medicine Caption This graphic depicts the biology of serous tubal intraepithelial carcinomas (STICs), lesions believed to be the main precursors of ovarian high-grade serous carcinoma (HGSC), the most common form of ovarian cancer in women. Credit Ie-Ming Shih (author) and Lydia Gregg (artist)/JHU Usage Restrictions none License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.