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Incidence and Mortality
Estimated new cases and deaths from penile (and other male genital) cancer in the United States in 2024:[
Risk Factors
Penile cancer is rare in most developed nations, including the United States, where the rate is less than 1 per 100,000 men per year. Some studies suggest an association between human papillomavirus (HPV) infection and penile cancer.[
Treatment Overview
When diagnosed early (stage 0, stage I, and stage II), penile cancer is highly curable. Curability decreases sharply for stage III and stage IV disease. Because of the rarity of this cancer in the United States, clinical trials specifically for penile cancer are infrequent. Patients with stage III and stage IV cancer are candidates for phase I and phase II clinical trials testing new drugs, biological therapy, or surgical techniques to improve local control and distant metastases.
The selection of treatment depends on the following:[
Fluorouracil dosing
The DPYD gene encodes an enzyme that catabolizes pyrimidines and fluoropyrimidines, like capecitabine and fluorouracil. An estimated 1% to 2% of the population has germline pathogenic variants in DPYD, which lead to reduced DPD protein function and an accumulation of pyrimidines and fluoropyrimidines in the body.[
References:
Virtually all penile carcinomas are of squamous cell origin and include the following subtypes:
Although they are less common subtypes, warty carcinoma and basaloid carcinoma appear to be more highly associated with human papillomaviruses (HPV), particularly HPV 16, than typical squamous cell carcinoma or verrucous carcinoma of the penis.[
Neuroendocrine carcinomas can also be seen.[
References:
American Joint Committee on Cancer (AJCC) Stage Groupings and Definitions of TNM
The AJCC has designated staging by TNM (tumor, node, metastasis) classification to define penile cancer.[
Stage | TNM | Description |
---|---|---|
T = primary tumor; N = regional lymph node; M = distant metastasis; cN = clinical N; PeIN = penile intraepithelial neoplasia; pN = pathological N. | ||
a Reprinted with permission from AJCC: Penis. In: Amin MB, Edge SB, Greene FL, et al., eds.:AJCC Cancer Staging Manual. 8th ed. New York, NY: Springer, 2017, pp 701–14. | ||
0is | Tis, N0, M0 | Tis = Carcinomain situ(PeIN). |
N0 =cN0, no palpable or visibly enlarged inguinal lymph nodes;pN0, no lymph node metastasis. | ||
M0 = No distant metastasis. | ||
0a | Ta, N0, M0 | Ta = Noninvasive localized squamous cell carcinoma. |
N0 =cN0, no palpable or visibly enlarged inguinal lymph nodes;pN0, no lymph node metastasis. | ||
M0 = No distant metastasis. |
Stage | TNM | Description |
---|---|---|
T = primary tumor; N = regional lymph node; M = distant metastasis; cN = clinical N; pN = pathological N. | ||
a Reprinted with permission from AJCC: Penis. In: Amin MB, Edge SB, Greene FL, et al., eds.:AJCC Cancer Staging Manual. 8th ed. New York, NY: Springer, 2017, pp 701–14. | ||
I | T1a, N0, M0 | T1a = Tumor is without lymphovascular invasion or perineural invasion and is not high grade (i.e., grade 3 or sarcomatoid). |
N0 =cN0, no palpable or visibly enlarged inguinal lymph nodes;pN0, no lymph node metastasis. | ||
M0 = No distant metastasis. |
Stage | TNM | Description |
---|---|---|
T = primary tumor; N = regional lymph node; M = distant metastasis; cN = clinical N; pN = pathological N. | ||
a Reprinted with permission from AJCC: Penis. In: Amin MB, Edge SB, Greene FL, et al., eds.:AJCC Cancer Staging Manual. 8th ed. New York, NY: Springer, 2017, pp 701–14. | ||
IIA | T1b, N0, M0 | T1b = Tumor exhibits lymphovascular invasion and/or perineural invasion or is high grade (i.e., grade 3 or sarcomatoid). |
N0 =cN0, no palpable or visibly enlarged inguinal lymph nodes;pN0, no lymph node metastasis. | ||
M0 = No distant metastasis. | ||
T2, N0, M0 | T2 = Tumor invades into corpus spongiosum (either glans or ventral shaft) with or without urethral invasion. | |
N0 =cN0, no palpable or visibly enlarged inguinal lymph nodes;pN0, no lymph node metastasis. | ||
M0 = No distant metastasis. | ||
IIB | T3, N0, M0 | T3 = Tumor invades into corpora cavernosum (including tunica albuginea) with or without urethral invasion. |
N0 =cN0, no palpable or visibly enlarged inguinal lymph nodes;pN0, no lymph node metastasis. | ||
M0 = No distant metastasis. |
Stage | TNM | Description |
---|---|---|
T = primary tumor; N = regional lymph node; M = distant metastasis; cN = clinical N; ENE = extranodal extension; pN = pathological N. | ||
a Reprinted with permission from AJCC: Penis. In: Amin MB, Edge SB, Greene FL, et al., eds.:AJCC Cancer Staging Manual. 8th ed. New York, NY: Springer, 2017, pp 701–14. | ||
IIIA | T1–3, N1, M0 | T1 =Glans: Tumor invades lamina propria;Foreskin: Tumor invades dermis, lamina propria, or dartos fascia;Shaft: Tumor invades connective tissue between epidermis and corpora regardless of location;All sites with or without lymphovascular invasion or perineural invasion and is or is not high grade. |
–T1a = Tumor is without lymphovascular invasion or perineural invasion and is not high grade (i.e., grade 3 or sarcomatoid). | ||
–T1b = Tumor exhibits lymphovascular invasion and/or perineural invasion or is high grade (i.e., grade 3 or sarcomatoid). | ||
T2 = Tumor invades into corpus spongiosum (either glans or ventral shaft) with or without urethral invasion. | ||
T3 = Tumor invades into corpora cavernosum (including tunica albuginea) with or without urethral invasion. | ||
N1 =cN1, palpable mobile unilateral inguinal lymph node;pN1, ≤2 unilateral inguinal metastases, no ENE. | ||
M0 = No distant metastasis. | ||
IIIB | T1–3, N2, M0 | T1 =Glans: Tumor invades lamina propria;Foreskin: Tumor invades dermis, lamina propria, or dartos fascia;Shaft: Tumor invades connective tissue between epidermis and corpora regardless of location;All sites with or without lymphovascular invasion or perineural invasion and is or is not high grade. |
–T1a = Tumor is without lymphovascular invasion or perineural invasion and is not high grade (i.e., grade 3 or sarcomatoid). | ||
–T1b = Tumor exhibits lymphovascular invasion and/or perineural invasion or is high grade (i.e., grade 3 or sarcomatoid). | ||
T2 = Tumor invades into corpus spongiosum (either glans or ventral shaft) with or without urethral invasion. | ||
T3 = Tumor invades into corpora cavernosum (including tunica albuginea) with or without urethral invasion. | ||
N2 =cN2, palpable mobile ≥ unilateral inguinal nodes or bilateral inguinal lymph nodes;pN2, ≥3 unilateral inguinal metastases or bilateral metastases, no ENE. | ||
M0 = No distant metastasis. |
Stage | TNM | Description |
---|---|---|
T = primary tumor; N = regional lymph node; M = distant metastasis; cN = clinical N; ENE = extranodal extension; PeIN = penile intraepithelial neoplasia; pN = pathological N. | ||
a Reprinted with permission from AJCC: Penis. In: Amin MB, Edge SB, Greene FL, et al., eds.:AJCC Cancer Staging Manual. 8th ed. New York, NY: Springer, 2017, pp 701–14. | ||
IV | T4, Any N, M0 | T4 = Tumor invades into adjacent structures (i.e., scrotum, prostate, pubic bone). |
cNX = Regional lymph nodes cannot be assessed. | ||
cN0 = No palpable or visibly enlarged inguinal lymph nodes. | ||
cN1 = Palpable mobile unilateral inguinal lymph node. | ||
cN2 = Palpable mobile ≥ unilateral inguinal nodes or bilateral inguinal lymph nodes. | ||
cN3 = Palpable fixed inguinal nodal mass or pelvic lymphadenopathy unilateral or bilateral. | ||
pNX = Lymph node metastasis cannot be established. | ||
pN0 = No lymph node metastasis. | ||
pN1 = ≤2 unilateral inguinal metastases, no ENE. | ||
pN2 = ≥3 unilateral inguinal metastases or bilateral metastases, no ENE. | ||
pN3 = ENE of lymph node metastases or pelvic lymph node metastases. | ||
M0 = No distant metastasis. | ||
Any T, N3, M0 | TX = Primary tumor cannot be assessed. | |
T0 = No evidence of primary tumor. | ||
Tis = Carcinomain situ(PeIN). | ||
Ta = Noninvasive localized squamous cell carcinoma. | ||
T1 =Glans: Tumor invades lamina propria;Foreskin: Tumor invades dermis, lamina propria, or dartos fascia;Shaft: Tumor invades connective tissue between epidermis and corpora regardless of location;All sites with or without lymphovascular invasion or perineural invasion and is or is not high grade. | ||
–T1a = Tumor is without lymphovascular invasion or perineural invasion and is not high grade (i.e., grade 3 or sarcomatoid). | ||
–T1b = Tumor exhibits lymphovascular invasion and/or perineural invasion or is high grade (i.e., grade 3 or sarcomatoid). | ||
T2 = Tumor invades into corpus spongiosum (either glans or ventral shaft) with or without urethral invasion. | ||
T3 = Tumor invades into corpora cavernosum (including tunica albuginea) with or without urethral invasion. | ||
T4 = Tumor invades into adjacent structures (i.e., scrotum, prostate, pubic bone). | ||
N3 =cN3, palpable fixed inguinal nodal mass or pelvic lymphadenopathy unilateral or bilateral;pN3, ENE of lymph node metastases or pelvic lymph node metastases. | ||
M0 = No distant metastasis. | ||
Any T, Any N, M1 | Any T = See descriptions above in this table, stage IV, Any T, N3, M0. | |
cNX = Regional lymph nodes cannot be assessed. | ||
cN0 = No palpable or visibly enlarged inguinal lymph nodes. | ||
cN1 = Palpable mobile unilateral inguinal lymph node. | ||
cN2 = Palpable mobile ≥2 unilateral inguinal nodes or bilateral inguinal lymph nodes. | ||
cN3 = Palpable fixed inguinal nodal mass or pelvic lymphadenopathy unilateral or bilateral. | ||
pNX = Lymph node metastasis cannot be established. | ||
pN0 = No lymph node metastasis. | ||
pN1 = ≤2 unilateral inguinal metastases, no ENE. | ||
pN2 = ≥3 unilateral inguinal metastases or bilateral metastases, no ENE. | ||
pN3 = ENE of lymph node metastases or pelvic lymph node metastases. | ||
M1 = Distant metastasis present. |
References:
Stage 0 penile cancer is defined by the following TNM classifications:[
Carcinoma in situ of the penis is referred to as erythroplasia of Queyrat when it occurs on the glans, and Bowen disease when it occurs on the penile shaft. These precursor lesions progress to invasive squamous cell carcinoma in 5% to 15% of cases. In case series studies, human papillomavirus DNA has been detected in most of these lesions.[
Treatment options:
Current Clinical Trials
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References:
Stage I penile cancer is defined by the following TNM classification:[
Stage I penile cancer is curable.[
Treatment options:
Because of the high incidence of microscopic node metastases, elective adjunctive inguinal dissection of clinically uninvolved (negative) lymph nodes in conjunction with amputation is often used for patients with poorly differentiated tumors. Lymphadenectomy can carry substantial morbidity, such as infection, skin necrosis, wound breakdown, chronic edema, and even a low, but finite, mortality rate. The impact of prophylactic lymphadenectomy on survival is not known. For these reasons, opinions vary on its use.[
Current Clinical Trials
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References:
Stage II penile cancer is defined by the following TNM classifications:[
Treatment options:
Because of the high incidence of microscopic node metastases, elective adjunctive dissection of clinically uninvolved (negative) lymph nodes in conjunction with amputation is often used for patients with poorly differentiated tumors. Lymphadenectomy can carry substantial morbidity, such as infection, skin necrosis, wound breakdown, chronic edema, and even a low, but finite, mortality rate. The impact of prophylactic lymphadenectomy on survival is not known.[
To reduce the morbidity associated with prophylactic lymphadenectomy, dynamic sentinel node biopsy is used in patients with stage T2 clinically node-negative penile cancer. One retrospective single-institution study of 22 patients reported a false-negative rate of 11%.[
Current Clinical Trials
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References:
Stage III penile cancer is defined by the following TNM classifications:[
Inguinal adenopathy in patients with penile cancer is common but may be the result of infection rather than neoplasm. If palpable enlarged lymph nodes exist 3 or more weeks after removal of the infected primary lesion and completion of a course of antibiotic therapy, bilateral inguinal lymph node dissection should be performed.
In cases of proven regional inguinal lymph node metastasis without evidence of distant spread, bilateral ilioinguinal dissection is the treatment of choice.[
Treatment options:
Because of the high incidence of microscopic node metastases, adjunctive inguinal dissection of clinically uninvolved (negative) lymph nodes in conjunction with amputation is often used for patients with poorly differentiated tumors. Lymphadenectomy can carry substantial morbidity, such as infection, skin necrosis, wound breakdown, chronic edema, and even a low, but finite, mortality rate. The impact of prophylactic lymphadenectomy on survival is not known. [
To reduce the morbidity associated with prophylactic lymphadenectomy, dynamic sentinel node biopsy is used in patients with stage T2 and stage T3 clinically node-negative penile cancer. One retrospective single-institution study of 22 patients reported a false-negative rate of 11%.[
Current Clinical Trials
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References:
Stage IV penile cancer is defined by the following TNM classifications:[
No standard treatment exists that is curative for patients with stage IV penile cancer. Therapy is directed at palliation, which may be achieved either with surgery or radiation therapy.
Treatment options:
Current Clinical Trials
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References:
Patients with locally recurrent disease can be treated with surgery or radiation therapy. If the initial treatment of radiation therapy fails, patients often undergo penile amputation. Patients with nodal recurrences not controlled by local measures are candidates for phase I and phase II clinical trials testing new biological and chemotherapeutic agents.[
Current Clinical Trials
Use our
References:
The PDQ cancer information summaries are reviewed regularly and updated as new information becomes available. This section describes the latest changes made to this summary as of the date above.
General Information About Penile Cancer
Updated statistics with estimated new cases and deaths for 2024 (cited American Cancer Society as reference 1).
Added Fluorouracil dosing as a new subsection.
This summary is written and maintained by the
Purpose of This Summary
This PDQ cancer information summary for health professionals provides comprehensive, peer-reviewed, evidence-based information about the treatment of penile cancer. It is intended as a resource to inform and assist clinicians in the care of their patients. It does not provide formal guidelines or recommendations for making health care decisions.
Reviewers and Updates
This summary is reviewed regularly and updated as necessary by the
Board members review recently published articles each month to determine whether an article should:
Changes to the summaries are made through a consensus process in which Board members evaluate the strength of the evidence in the published articles and determine how the article should be included in the summary.
Any comments or questions about the summary content should be submitted to Cancer.gov through the NCI website's
Levels of Evidence
Some of the reference citations in this summary are accompanied by a level-of-evidence designation. These designations are intended to help readers assess the strength of the evidence supporting the use of specific interventions or approaches. The PDQ Adult Treatment Editorial Board uses a formal evidence ranking system in developing its level-of-evidence designations.
Permission to Use This Summary
PDQ is a registered trademark. Although the content of PDQ documents can be used freely as text, it cannot be identified as an NCI PDQ cancer information summary unless it is presented in its entirety and is regularly updated. However, an author would be permitted to write a sentence such as "NCI's PDQ cancer information summary about breast cancer prevention states the risks succinctly: [include excerpt from the summary]."
The preferred citation for this PDQ summary is:
PDQ® Adult Treatment Editorial Board. PDQ Penile Cancer Treatment. Bethesda, MD: National Cancer Institute. Updated <MM/DD/YYYY>. Available at:
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Disclaimer
Based on the strength of the available evidence, treatment options may be described as either "standard" or "under clinical evaluation." These classifications should not be used as a basis for insurance reimbursement determinations. More information on insurance coverage is available on Cancer.gov on the
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Last Revised: 2024-02-02
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