Which of the following is not a characteristic of Paterson-brown-kelly syndrome?

 # Which of the following is not a characteristic of Paterson-brown-kelly syndrome? 
a. koilonychia 
b. dysphagia 
c. iron deficiency anemia 
d. none of the above 

The correct answer is D. None of the above.

Iron Deficiency Anemia and Plummer-Vinson Syndrome
(Paterson-Brown-Kelly syndrome, Paterson-Kelly syndrome, sideropenic dysphagia)
Iron deficiency is an exceedingly prevalent form of anemia, particularly in females. Iron deficiency is the most prevalent single deficiency state on a worldwide basis. It has been estimated that between 5 and 30% of women in the United States are iron deficient, while in some parts of the world, this may reach 50% . Men are only rarely affected. 

While an iron-deficiency anemia may occur at any age, the Plummer-Vinson syndrome occurs chiefly in women in the fourth and fifth decades of life. Presenting symptoms of the anemia and the syndrome
are cracks or fissures at the corners of the mouth (angular cheilitis), a lemon-tinted pallor of the skin, a smooth, red, painful tongue (glossitis) with atrophy of the filiform and later the fungiform papillae, and dysphagia limited to solid food resulting from an esophageal stricture or web. These oral findings are reminiscent of those seen in pernicious anemia. The mucous membranes of the oral cavity and esophagus are atrophic and show loss of normal keratinization. Koilonychia (spoon-shaped fingernails) or nails that are brittle and break easily have been reported in many patients; splenomegaly has also been reported in 20–30% of the cases.

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