A 13 year old male child, studying in grade 7 at a school in Miryalguda was brought to the Medicine OPD (on 6/01/2022) with complaints of: • Yellowish discolouration of eyes since 9 days • Yellow colored urine since 9 days. HISTORY OF PRESENT ILLNESS: The patient was apparently asymptomatic as a newborn - healthy term baby, cried immediately after vaginal delivery. He had physiological jaundice that resolved spontaneously. He is immunized as per schedule. At 8 months of age: he developed altered bowel habits - 1 week of passage of loose stools followed by 1 week of passing normal stools. Later he continued to pass loose stools for 2-3 months and became cachetic. He was taken to the hospital where he was given IV antibiotics and 2 FFP transfusions. He recovered in about 3 months time and according to hospital discharge summary, he was suspected to be suffering from : • Celiac disease • Chronic diarrhea • Chronic Malabsorption On further inquiry, the parents said ...