In order to provide the highest quality information on Wikidoc, we've had to implement a human verification system called ReCaptcha to combat attempts to deface the website. If the Captcha technology proves difficult to use, please send an email to bugs AT wikidoc.org with your username and we will be happy to lift the Captcha requirement from your account. We apologize for any inconvenience.
Diphallia
|
WikiDoc Resources for Diphallia | |
|
Articles | |
|---|---|
|
Most recent articles on Diphallia | |
|
Media | |
|
Evidence Based Medicine | |
|
Clinical Trials | |
|
Ongoing Trials on Diphallia at Clinical Trials.gov Clinical Trials on Diphallia at Google
| |
|
Guidelines / Policies / Govt | |
|
US National Guidelines Clearinghouse on Diphallia
| |
|
Books | |
|
News | |
|
Commentary | |
|
Definitions | |
|
Patient Resources / Community | |
|
Patient resources on Diphallia Discussion groups on Diphallia Directions to Hospitals Treating Diphallia Risk calculators and risk factors for Diphallia
| |
|
Healthcare Provider Resources | |
|
Causes & Risk Factors for Diphallia | |
|
Continuing Medical Education (CME) | |
|
International | |
|
| |
|
Business | |
|
Experimental / Informatics | |
Editor-In-Chief: Steven C. Campbell, M.D., Ph.D., Professor of Surgery, Residency Program Director, Section of Urologic Oncology, Glickman Urological and Kidney Institute, Cleveland Clinic. You can email Dr. Campbell by clicking here. Office phone: 216-444-5595.
Please Join in Editing This Page and Apply to be an Editor-In-Chief for this topic: There can be one or more than one Editor-In-Chief. You may also apply to be an Associate Editor-In-Chief of one of the subtopics below. Please mail us [1] to indicate your interest in serving either as an Editor-In-Chief of the entire topic or as an Associate Editor-In-Chief for a subtopic. Please be sure to attach your CV and or biographical sketch.
Overview
Diphallia, penile duplication (PD), diphallic terata, or diphallasparatus, is a medical condition in which a male infant is born with two penises. This is an extremely rare disorder with only approximately 100 cases of diphallia recorded since the first case reported by Johannes Jacob Wecker in 1609. Its occurrence is one in 5.5 million men in the United States.[1][2]
When diphallia is present, it is usually accompanied by other congenital anomalies such as renal, vertebral, hindgut or anorectal duplication. There is also a higher risk of spina bifida. Infants born with PD and its related conditions have a higher death rate from various infections associated with their more complex renal or colorectal systems.
It is thought diphallia occurs in the fetus between the 23rd and 25th days of gestation when an injury, chemical stress, or malfunctioning homeobox genes hamper proper function of the caudal cell mass of the fetal mesoderm as the urogenital sinus separates from the genital tubercle and rectum to form the penis.
Characteristics
- Those in possession of a diphallus tend to be sterile, due to either congenital defects or difficulties in application.
- Urine may be passed by both penises, by only one, or through some other aperture in the perineum.
- A range of duplication types have been seen, ranging from organs that fissure into two, to the presence of two distinct penises positioned at some distance from each other.
- Most diphalluses lie side by side and are of equal size, but they can be seated atop one another, with one distinctly larger than the other.
This rare condition has been documented in pigs and other mammals. It is commonly mistaken that all sharks have this condition, but in reality they have a pair of "claspers" which serve a reproductive function.
Diphallia is a medical condition and should not be confused with genital bisection, which is an elective procedure which involves the splitting of the penis.
Pathological Findings
Images shown below are courtesy of Geneva Foundation for Medical Education and Research and Marmara Medical Journal.
See also
References
- ↑ Indian man wants op to remove extra organ. Reuters. Retrieved on 2006-08-18.
- ↑ Man wants op to remove extra organ. The Sydney Morning Herald. Retrieved on 2006-08-18.
External Links
de:Diphallienl:Diphallia
sq:Diphallus
[edit] Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
