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Post-Cricoid Carcinoma: definition

A malignancy with early metastasis and poor prognosis arising in the hypopharynx, the region of the throat lying behind the voice box (larynx). Symptoms start out as difficulty swallowing (dysphagia) that progress to the feeling… 

Pityriasis Rubra Pilaris: definition

A chronic generalized exfoliative dermatitis characterized by erythema (redness), scaling and keratoderma (thickened skin) that develops from vitamin A deficiency and is often associated with iron deficiency anemia and low serum albumin (protein deficiency). It…