What are the other Names for this Condition? (Also known as/Synonyms)

• CCH of Vulva
• Clear Cell Hidradenoma (CCH) of Vulva
• Vulvar Nodular Hidradenoma

What is Nodular Hidradenoma of Vulva? (Definition/Background Information)

• Nodular Hidradenoma of Vulva is a common, benign tumor of the sweat glands of the vulva (external opening of the vagina). It can arise either from the apocrine or eccrine sweat gland
• Nodular Hidradenoma of Vulva is a slow-growing and usually solitary tumor that occurs as a painless nodule. It is often seen in young to older women
• The cause of Nodular Hidradenoma of Vulva is largely unknown, although the presence of nevus sebaceus is a risk factor for the condition
• In a majority of cases, no treatment in necessary, unless it causes worrisome symptoms or cosmetic concerns in the individual
• A simple surgical excision of the tumor is considered curative. The prognosis for Nodular Hidradenoma of Vulva is excellent with suitable treatment

Who gets Nodular Hidradenoma of Vulva? (Age and Sex Distribution)

• Nodular Hidradenoma of Vulva is a common condition can be present at any age in women; however, it is commonly seen in the age range of 30-60 years
• They may be occasionally seen in girls too
• Individuals of all racial and ethnic background may be affected. Worldwide, no geographical localization of Nodular Hidradenoma of Vulva has been reported

What are the Risk Factors for Nodular Hidradenoma of Vulva? (Predisposing Factors)

• Currently, nevus sebaceus (a benign skin condition) has been identified as a risk factor for Nodular Hidradenoma of Vulva

It is important to note that having a risk factor does not mean that one will get the condition. A risk factor increases ones chances of getting a condition compared to an individual without the risk factors. Some risk factors are more important than others.

Also, not having a risk factor does not mean that an individual will not get the condition. It is always important to discuss the effect of risk factors with your healthcare provider.

What are the Causes of Nodular Hidradenoma of Vulva? (Etiology)

The cause of development of Nodular Hidradenoma of Vulva is generally unknown.

• However, Vulvar Nodular Hidradenoma is non-infectious
• It does not spread through sexual transmission (or by direct physical contact) from one individual to another

What are the Signs and Symptoms of Nodular Hidradenoma of Vulva?

The signs and symptoms of Nodular Hidradenoma of Vulva include:

• The tumor usually occurs as a single nodule on the vulvar skin; sometimes multiple tumors are seen
• It is a slow-growing tumor, usually growing in size from 0.5 cm to 5 cm
• There is an absence of pain and the tumor does not itch
• Pigmentation can be seen on some tumors
• Larger tumors may cause discomfort while walking or sitting

How is Nodular Hidradenoma of Vulva Diagnosed?

A diagnosis of Nodular Hidradenoma of Vulva may involve the following tests and procedures:

• A thorough medical history and physical examination
• Dermoscopy: It is a diagnostic tool where a dermatologist examines the skin using a special magnified lens
• Skin biopsy: A skin biopsy is performed and sent to a laboratory for a pathological examination. The pathologist examines the biopsy under a microscope. After putting together clinical findings, special studies on tissues (if needed) and with microscope findings, the pathologist arrives at a definitive diagnosis

Many clinical conditions may have similar signs and symptoms. Your healthcare provider may perform additional tests to rule out other clinical conditions to arrive at a definitive diagnosis.

What are the possible Complications of Nodular Hidradenoma of Vulva?

Even though Nodular Hidradenoma of Vulva is a benign skin lesion, it may cause the following complications:

• The tumors can ulcerate and bleed. This can cause superimposed bacterial or fungal infections 
• Pain and discomfort may be experienced during sexual intercourse
• Individuals may be under emotional and psychological stress due to the presence of a large tumor

How is Nodular Hidradenoma of Vulva Treated?

The treatment of Nodular Hidradenoma of Vulva may involve the following:

• In most of the cases, the tumor is not removed, unless it causes bothersome signs and symptoms such as cosmetic issues
• If necessary a complete surgical excision may be performed that can bring about a cure
• Follow-up care with regular screening and check-ups are important and encouraged

How can Nodular Hidradenoma of Vulva be Prevented?

Currently, there are no known methods to prevent the development of Nodular Hidradenoma of Vulva.

What is the Prognosis of Nodular Hidradenoma of Vulva? (Outcomes/Resolutions)

Nodular Hidradenoma of Vulva is a benign tumor; its prognosis is excellent with appropriate treatment.

Additional and Relevant Useful Information for Nodular Hidradenoma of Vulva:

• There is no evidence to prove that oily foods and chocolate-based products have an influence on Nodular Hidradenoma of Vulva formation
• Cleaning the skin too hard with strong chemicals or soaps may aggravate the skin condition. Care must be taken avoid strong soaps and chemicals that could potentially worsen the condition
• The presence of dirt on the body is not a causative factor for the condition. However, it helps to be clean and hygienic, which may help the condition from getting worse