0
ARTICLE |

Pelvic Versus Cortical Tumors

Clarence V. Hodges, MD
JAMA. 1968;204(7):610-611. doi:10.1001/jama.1968.03140200050015.
Text Size: A A A
Published online

ABSTRACT

The renal pelvis arises from the ureteric bud (mesonephric duct), whereas renal parenchyma develops from the nephrogenic cap. This difference in derivation may account, at least in part, for the marked difference in behavior of tumors arising in the two sites. Tumors of the renal pelvis develop from transitional cell epithelium and vary from relatively benign papillomas to highly malignant, infiltrating, sessile tumors. Squamous cell carcinoma may develop as further metaplasia of transitional cell carcinoma occurs, or separately, as the result of reaction to long-continued irritation. A very rare type of pelvic tumor is the mucoid adenocarcinoma.

Etiology  The transitional epithelium of the renal pelvis shares the property of its counterpart, throughout the urinary collecting system, in its response to carcinogenic agents excreted in the urine, to irritation, or most often, to unknown agents.Although still relatively uncommon, it is believed by recent authors46 that the incidence is rising.

Topics

Sign In to Access Full Content

Don't have Access?

Register and get free email Table of Contents alerts, saved searches, PowerPoint downloads, CME quizzes, and more

Subscribe for full-text access to content from 1998 forward and a host of useful features

Activate your current subscription (AMA members and current subscribers)

Purchase Online Access to this article for 24 hours

Figures

Tables

References

CME
Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.
NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Multimedia

Some tools below are only available to our subscribers or users with an online account.

Sign In to Access Full Content

Related Content

Customize your page view by dragging & repositioning the boxes below.

Jobs
brightcove.createExperiences();