World Health Organization and International Society of Urological Pathology classification and two-number grading system of bladder tumors

World Health Organization and Internatio

World Health Organization and International Society of Urological Pathology classification and Two-number grading system of bladder tumors : Reply

✍ Liang Cheng; David G. Bostwick 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 55 KB 👁 1 views

I n 1973, Dr. F. K. Mostofi proposed a three-tiered system (World Health Organization [WHO] Grades 1, 2, and 3) to grade urothelial (transitional cell) carcinoma of the urinary bladder. 1 Grading was based on the degree of anaplasia of tumor cells, which was defined as increased cellularity, nuclear