<prompt> Metabolic abnormality seen in large colorectal villous adenomaHypokalemic metabolic acidosisHypokalemic metabolic acidosisChlorine sensitive metabolic acidosisChlorine resistant metabolic alkalosis  <response>: .Features of Adenoma Can be asymptomatic. Bleeding per anum is usually chronic but rarely can be acute. Anaemia. Prolapse--common in tubular type. Diarrhoea common in villous type; mucus discharge. Tenesmus, colicky abdominal pain. Spurious diarrhoea. Poor general health. Electrolyte imbalance - hypokalaemia. Per-rectal examination should be done to feel the adenomapolyp. Carcinomatous changes. ref:SRB;s manual of surgery,ed 3,pg no 832 