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Entries in Dermatology Tomball (268)

Saturday
Jun112011

Hair Follicle Neoplasms - Trichilemmoma

Trichilemmomas are benign hair follicle neoplasms that I occasionally encounter in both my The Woodlands dermatology and Conroe dermatology clinics.  Trichilemmomas appear clinically as small flesh colored papules on the face and may be mistaken for basal cell cancers.  Trichilemmomas are usually solitary but when they are multiple it is worrisome for Cowden's Syndrome.  Patients with Cowden Syndrome have a 40 to 50% chance of developing an internal malignancy such as breast and thyroid cancer.  Skin cancers are also very prevalent in Cowden's Syndrome as the genetic defect is a mutation in the PTEN tumor suppressor gene.  Treatment of Trichilemmomas are with shave excision, laser resurfacing and dermabrasion if desired.

 

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Saturday
Jun042011

Hair Follicle Neoplasms - Trichoepitheliomas

Trichoepitheliomas are benign hair follicle neoplasms that I occasionally encounter in both my The Woodlands dermatology and Conroe dermatology offices.  The most common anatomic location for a Trichoepithelioma is the face.  Clinically, Trichoepitheliomas are flesh colored nodules and may be mistaken for basal cell cancers.  Treatment of Trichoepitheliomas is surgical excision if desired.  Most Trichoepitheliomas are solitary but there is a hereditary disorder called Brooke Spiegler Syndrome in which a patient may have numerous Trichoepitheliomas.  Brooke Spiegler is inherited in an autosomal dominant pattern and patients may develop other adnexal tumors such as cylindromas and spiradenomas. 

 

 

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Sunday
May292011

Hair Follicle Neoplasms - Trichoblastoma

Trichoblastomas are benign hair follicle neoplasms that I occasionally encounter in both my The Woodlands dermatology and Conroe dermatology clinics.  Trichoblastomas arise from the hair follicle's germinative cells.  Clinically, Trichoblastomas appear as flesh colored nodules.  The most common anatomical location to find a Trichoblastoma is the scalp.  Trichoblastomas do not usually occur until adulthood and are the most common tumor to arise in a Nevus Sebaceous.  Treatment of Trichoblastomas is surgical excision if they are symptomatic.

 

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Saturday
May212011

Eczema - Juvenile Plantar Dermatosis

Juvenile Plantar Dermatosis is a type of Eczema that occurs in children and I occasionally encounter this skin disease in both my The Woodlands dermatology and Conroe dermatology offices.  Typically, a scaly red plaque develops on the large toe and progresses to the weight bearing areas of the feet with a predominance for the forefoot and sparing of the heel.  Juvenile Plantar Dermatosis is most often seen in children with Eczema.  Children whose feet become macerated and wet especially with prolonged wearing of shoes are especially prone to Juvenile Plantar Dermatosis.  The treatment is allowing the feet to air out by wearing open toe shoes and preventing occlusion.  Topical steroids are of little benefit.

Juvenile Plantar Dermatosis (http://www.dermnetnz.org/dermatitis/img/jpd1-s.jpg)

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Sunday
May152011

Eczema - Xerotic Eczema

Xerosis, dry skin, is one of the most common causes of Eczema and I encounter this form daily in both my The Woodlands dermatology and Conroe dermatology offices.  Xerotic Eczema is also called "Winter's Itch" as the decrease in humidity during the Winter and increase usage of heaters exacerbates this condition.  Clinically, Xerotic Eczema appears very dry and usually has fine fissures and cracks traversing through the eczematous plaques.  The extremities are the most common sites involved by Xerotic Eczema.  Hydration of the skin is of utmost importance in treating Xerotic Eczema.  I counsel my patients to avoid high detergent soaps such as Dial, Ivory and Irish Spring and use a synthetic soap with a more neutral pH such as Dove body wash.  Topical emollients such as Lubriderm and Aquaphor are used at least twice a day to moisturize the skin.  A topical steroid is typically prescribed to treat the inflammatory response in the Eczema.

 

Xerotic Eczema(http://medicalpicturesinfo.com/wp-content/uploads/2011/08/Asteatotic-Eczema-1.jpg)

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