Bilateral Brenner tumor of ovary with associated unilateral mucinous cystadenoma: a case report

Brenner tumors are rare ovarian tumors, which are a subgroup of transitional cell tumors of ovary. Most of these tumors are benign presenting as incidental unilateral masses in postmenopausal age group. Only 5-7% cases are bilateral. These tumors are mostly small, solid and asymptomatic, seen commonly in association with mucinous cystadenomas of ovary. In such cases they may attain a massive size. Specific diagnosis of Brenner tumor is difficult using imaging studies and can be definitely diagnosed only on pathological examination. Surgical removal is usually curative for benign tumors. We present a rare case of bilateral Brenner tumor of ovary with associated unilateral mucinous cystadenoma in which bilateral Brenner tumor was a rare incidental finding on pathological examinatio

Sustained-Release Performance In Vitro of BCG/Fe3O4/Chitosan Thermosensitive Gel Integrated Material for Irrigation Therapy of the Bladder Tumor

Tumor of bladder is one of the most common tumors of the urinary system, the vast majority of which come from the epithelial tissue, and of which more than 90% are transitional cell tumors. Tumor of bladder ranks fourth in men and tenth in women. Intravesical instillation of Bacillus Calmette-Guerin (BCG) is recognized as the best way to prevent the recurrence of bladder cancer. But BCG would be excreted with the urine after staying about one hour in the bladder, which has a serious impact on its efficacy. In addition, repeated infusions bring great pains to the patients. This research intends to design a new sustained-release BCG integrated composite materials based on homogenized freeze-dried BCG. The release experiments in vitro of the composite materials show that the release property is good and release time of BCG is more than 48 hours.