QuestionSBA
QuestionChoice
This is correct. Niacin (Vitamin B3) deficiency causes pellagra which typically presents with 3Ds: Diarrhoea, Dermatitis and Dementia.
10002656
a
Niacin Deficiency
QuestionChoice
This is incorrect. Kwashiorkor is a very rare condition caused by insufficient protein intake. Whilst Kwashiorkor can present with dermatitis, the most common presentation is with bilateral pitting oedema in the feet. On examination an enlarged fatty liver would be palpable. Kwashiorkor only affects children under the age of 5.
10002660
e
Kwashiorkor
QuestionChoice
This is incorrect. Whilst UC is an important differential to have in chronic diarrhoea, it is incorrect in this case as the patient is also sufferring from a rash and memory loss.
10002659
d
Ulcerative Collitis
QuestionChoice
This is incorrect. Thiamine (Vitamin B1) deficiency presents with a triad of: Ophthalmoplegia, Ataxia and Confusion.
10002657
b
Thiamine Deficiency
QuestionChoice
This is incorrect. Ascorbic Acid (Vitamin C) Deficiency causes Scurvy, which presents with bleeding gums, severe joint or leg pain and a feeling of tiredness all of the time.
10002658
c
Ascorbic Acid Deficiency
Concept
Chapter
2693
4061
Vitamin deficiency syndromes
Topic
136
Gastroenterology
13078
A 56-year-old female who had recently emigrated to the UK, presents to the Emergency Department with a 5-month history of diarrhoea and a bilateral, photsensitve rash on her neck and arms. Her son who is accompanying her also notes she is struggling to remember things in recent weeks.

What is the underlying cause?
a