RESUMO
Background: Urinary bladder cancer is one of the most common forms of all cancers in the world. It is the ninth leading cause of death from cancer among men. The incidence of urinary bladder cancer in Bangladesh is increasing day by day. The aim of the study was to evaluate different clinic-pathological parameters of urothelial carcinoma of urinary bladder with the grade of the tumor. Methods: This study was a cross sectional study done over a period of two years, from March 2018 to February 2020 at the department of pathology, Dhaka medical college, Dhaka. Total 73 samples were collected, fixed overnight in 10% buffered formalin and stained with hematoxylin and eosin staining. Pathological grading was confirmed and different clinic-pathological parameters were evaluated. Results: Most of the cases (22 cases, 30.1%) were found in the fifth decade (51-60). Mean age of the patients was found to be 60.85 (±12.72) years, 58 (79.5%) cases were male and 15 (20.5%) cases were female with male to female ratio of 3.9:1. Most of the cases (49 cases, 67.1%) were smokers. Most common clinical presentation was hematuria (91.8% cases), most frequent tumor location was the lateral wall of the urinary bladder and 75.3% cases were reported as high-grade urothelial carcinoma. Conclusions: Different clinic-pathological parameters with histologic grading were evaluated in this study which may have a significant impact in epidemiology, diagnosis and assessment of biological behavior of urothelial carcinoma.
RESUMO
Background: Prostate cancer is a leading cause of death in men. Nodular hyperplasia and adenocarcinoma are common causes of prostatic enlargement. Diagnosis of these lesions on routine biopsies can be difficult for pathologists. Immunohistochemical stain p63 can help, but it is costly and not widely available. The present study aimed to evaluate the usefulness of mucin histochemistry in relation to p63 expression in differentiating nodular hyperplasia and adenocarcinoma of prostate. Methods: This study was conducted in the department of pathology at Dhaka medical college from July 2018 to June 2020. 50 cases of prostatic lesions (25 NHP and 25 adenocarcinoma) were examined using histomorphology. The sections were stained with periodic acid Schiff (PAS) to identify neutral mucins and Alcian blue (2.5 pH) to identify acidic mucins. Additionally, p63 antibody was used in immunohistochemistry. Results: NHP showed positivity for neutral mucin (96% with PAS stain) but not for acidic mucin (Alcian blue stain), while prostatic carcinoma showed positivity for both neutral mucin (28%) and acidic mucin (44%). The grade group 1 tumors of prostatic carcinoma showed 100% positivity for acid mucin, with a decrease in Alcian blue staining as the grade increased. P63 was positive in 100% of NHP cases and negative in 100% of prostatic carcinoma cases. Conclusions: Positivity for acidic mucins with Alcian blue stain can be a helpful diagnostic tool to differentiate well differentiated adenocarcinomas from benign lesions where facility for p63 immuno-stain is not available and poor people who cannot afford the cost of immunohistochemistry.