What is the name of the inflammatory condition that causes cracks, crusting and scaling at the corners of the mouth due to vitamin B2 deficiency?

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Accepted Answer

Step-by-step explanation:

1. Identify the symptom: cracks, crusting and scaling at the corners of the mouth describe angular fissuring of the oral commissures.
2. Link to deficiency: Riboflavin (vitamin B2) deficiency is classically associated with inflammation and fissuring at the angles of the mouth.
3. Match the condition name: "Cheilosis" (also called angular cheilitis or angular stomatitis) refers specifically to inflammation and cracking of the lips/angles of the mouth.
4. Exclude other options:
   - Psoriasis is a chronic scaly skin disorder, not specifically due to B2 deficiency and not limited to mouth corners.
   - Urticaria (hives) presents with transient wheals and itching, not crusting cracks at mouth corners.
   - Atopic dermatitis is an eczematous condition often on flexures and face but not the classic finding for B2 deficiency.

Therefore the correct answer is option (1) Cheilosis.

FINAL_ANSWER: a

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