Diarrhoea, Dementia, and Dermatitis MCQ

Diarrhoea, Dementia, and Dermatitis are due to deficiency of 

A. Thiamine 
B. Riboflavine 
C. Nicotinic acid 
D. None

Ans. C.Nicotinic acid                                                                                        

> Early symptoms of pellagra include loss of appetite, generalized weakness and irritability, abdominal pain, and vomiting. Bright-red gloasitia then ensues, followed by a characteristic skin rash that is pigmented and scaling, particularly in skin areas exposed to sunlight.
>This rash is known as “Casal’s necklace” because it forms a ring around the neck; it is seen in advanced cases.
>Vaginitis and esophagitis may also occur.