A case of signet-ring cell carcinoma involving the urinary bladder, which is a rare variant of adenocarcinoma, is presented. 21 cases have so far been reported in the occidental and Japanese journals. In 13 patients (62%) the carcinomas were of urachal origin and 8 (38%) of bladder origin. The prognosis of signet-ring cell carcinoma originating in bladder is poorer compared to that in urachus; 2-year survival of 40% for the bladder cancer group and 70% for the urachus. A radical cystectomy with excision of adjacent tissues, which might improve the prognosis in this fatal malignancy, should be considered.
Two cases of crossed ectopia of solitary kidney found in two boys are present. This rare anomaly has been accompanied by imperforate anus and inguinal hernia in one boy and by imperforate anus, urethrorectal fistula, cryptorchism, and penoscrotal and vertebral anomalies in the other. 21 cases have been collected and the present two patients appear to be the 22nd and 23rd cases reported in the world literature.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.