Carcinoma of the penis classification: Difference between revisions
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==Overview== | ==Overview== | ||
Carcinoma of the penis may be classified according to cell types into several subtypes: [[squamous cell carcinoma]], [[adenocarcinoma]], [[melanoma]], [[basal cell carcinoma]], [[lymphomalymphoma]], and [[sarcoma]]. | |||
==Classification== | ==Classification== | ||
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'''Squamous cell carcinoma'''<ref>Malignant tumours of the penis. Canadian Cancer Society 2015. http://www.cancer.ca/en/cancer-information/cancer-type/penile/penile-cancer/malignant-tumours/?region=ab </ref> | '''Squamous cell carcinoma'''<ref>Malignant tumours of the penis. Canadian Cancer Society 2015. http://www.cancer.ca/en/cancer-information/cancer-type/penile/penile-cancer/malignant-tumours/?region=ab </ref> | ||
The most common type of penile cancer is [[squamous cell carcinoma]] (SCC). About 95% of penile cancers develop from flat, scale-like cells called | The most common type of penile cancer is [[squamous cell carcinoma]] (SCC). About 95% of penile cancers develop from flat, scale-like cells called squamous cells. SCC can develop anywhere on the [[penis]], but most develop on the [[foreskin]] (in uncircumcised men) or the [[glans]]. This type of cancer is typically slow growing. When found early, it is often curable. | ||
There are several subtypes of SCC: | There are several subtypes of SCC: | ||
Revision as of 15:12, 22 September 2015
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Editor(s)-in-Chief: C. Michael Gibson, M.S., M.D. [1] Phone:617-632-7753
Overview
Carcinoma of the penis may be classified according to cell types into several subtypes: squamous cell carcinoma, adenocarcinoma, melanoma, basal cell carcinoma, lymphomalymphoma, and sarcoma.
Classification
Most common malignant penile tumours
Squamous cell carcinoma[1]
The most common type of penile cancer is squamous cell carcinoma (SCC). About 95% of penile cancers develop from flat, scale-like cells called squamous cells. SCC can develop anywhere on the penis, but most develop on the foreskin (in uncircumcised men) or the glans. This type of cancer is typically slow growing. When found early, it is often curable.
There are several subtypes of SCC:
- Warty carcinoma (verruciform) and verrucous carcinoma
- Looks like a genital wart and may have a cauliflower-like appearance
- Usually slow growing, but they gradually enlarge and can spread deeply into surrounding tissue
- Rarely spread to lymph nodes or other parts of the body
- Often associated with human papillomavirus (HPV) infection
- Basaloid carcinoma
- Uncommon type of squamous cell penile cancer
- Fast growing
- Sarcomatoid carcinoma
- Fast growing
Rare malignant penile tumours
There are several rare types of penile cancer:
Adenocarcinoma
- Develops from sweat glands (glandular cells) in the skin of the penis
- Occurs much less often than SCC
- Also called Paget's disease of the penis
Melanoma
- Develops from skin cells called melanocytes
- Usually develops on sun-exposed areas of skin, but sometimes develops on the penis
Basal cell carcinoma
- A type of non-melanoma skin cancer
- Slow growing and rarely spreads to other areas of the body
Lymphomalymphoma
- A type of cancer that starts in immune cells of the lymphatic system.
Sarcoma
- A type of cancer that starts in connective tissues (tissue that surrounds and supports various organs in the body).
- Starts in the connective and supporting tissues of the body
- Tends to be fast growing
- May include AIDS-related Kaposi sarcoma (KS)
References
- ↑ Malignant tumours of the penis. Canadian Cancer Society 2015. http://www.cancer.ca/en/cancer-information/cancer-type/penile/penile-cancer/malignant-tumours/?region=ab