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Lymphocyte: definition

A small white blood cell that plays a major role in defending the body against disease. There are two types of lymphocytes: B cells, which make antibodies that attack bacteria and toxins, and T cells… 

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… 

Psoriasis: definition

A chronic relapsing dermatosis characterized by scaling, erythema (redness), and less commonly pustulation that is an associated disorder of celiac disease involving deficiencies of omega-3 fatty acids, vitamin D, and zinc – features of malnutrition.…