Here, we address the problem of classifying the prostate tissue images as normal, Gleason grade 3 and grade 4, by using information computed from glandular regions in the image this classification determines the malignancy of cancer and is of great diagnostic importance. For this task, state-of-the-art methods rely on segmenting and extracting features from gland regions containing strong lumen...

The morphometric differences between the urothelial cells (wet-fixed Papanicolaoustained) in the voided urine of 2 patients with low grade and high grade bladder tumours were measured. The morphometrical data of this learning set resulted in a cytomorphometrical classification rule, which was applied to a test set of 21 cases with low grade and high grade bladder tumours. The results of the cyt...

AIM To test the prognostic value of the 1998 WHO/ISUP (World Health Organisation/International Society of Urologic Pathology) consensus classification system in Ta papillary urothelial neoplasms of the bladder. METHODS The histological slides of 322 patients with a primary Ta tumour were classified according to the consensus classification system, and recurrence free survival (RFS) and progre...

The grading of cancer is a histological method intended to help predict prognosis based on specific morphological features. It typically is based on architectural or cytological features (nuclear grade or number of mitoses), or in some cases, a combination of both. Grading is usually broken down into a spectrum from well differentiated (grade 1) to the most poorly differentiated (grade 3 or 4)....

Histopathological examination and grading of meningiomas gives valuable prognostic information, although the method is subject for interobserver variability. The aim of this study was to review a large series of human meningiomas in order to examine the frequency of benign (grade I), atypical (grade II), and anaplastic (grade III) forms depending on various WHO classification schemes. In additi...