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Tag Archives: Vitamin A

Pityriasis Rubra Pilaris

What Is Pityriasis Rubra Pilaris? Pityriasis rubra pilaris (PRP) is a chronic generalized exfoliative dermatitis (sloughing skin) characterized by erythema (redness), scaling, dilated plugged hair follicles, and keratoderma (thickened skin) of the hands and feet that is often associated with ...

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Follicular Hyperkeratosis (goose flesh or corkscrew hair)

What Is Follicular Hyperkeratosis? Follicular hyperkeratosis is an abnormal skin condition characterized by disordered overgrowth of the horny layer of the epidermis with horny plugs filling the openings of hair follicles. The plugs look like bumps in hair follicles. Follicular ...

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Cutis Laxa, Acquired

What Is Acquired Cutis Laxa? Acquired cutis laxa is an uncommon skin disorder characterized by abnormal reduction and degeneration of elastic fibers of the skin that can appear simply as thick, saggy skin with loose folds to severe involvement showing ...

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Cancer Of The Esophagus 

What Is Cancer Of The Esophagus? Cancer of the esophagus is a malignancy arising in the stratified squamous cell lining of any part of the esophagus and having a poor prognosis. This tumor first invades the deeper layers of the ...

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Cancer, Post-Cricoid

What Is Post-Cricoid Carcinoma? Post-cricoid carcinoma is a rare malignancy arising in the hypopharynx. Q: What is the hypopharynx? A: The hypopharynx is the lower portion of the pharynx that opens into the larynx. It is comprised of the postcricoid ...

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