<prompt> This is seen due commonly due to deficiency of:Vitamin B1Vitamin B2NiacinVitamin B12  <response>: The given picture shows lesions at angles of mouth angular cheilitis- deficiency of vitamin B2 Riboflavin. Other features of vitamin B2 deficiency include glossitis, magenta tongue and geographic tongue . Also have Corneal vascularisation Image showing corneal vascularisation in vitamin B2 deficiency Cassal necklace-- niacin def. Acrodermatitis enteropathica-- zinc def. Xanthurenic aciduria-- Pyridoxine def. 