The jejunal biopsy is diagnostic in: (A) Abetalipoproteinemia, (B) Giardiasis, (C) Tropical sprue, (D) Celiac sprue
Answer is A. Abetalipoproteinemia is characterized by a normal mucosal appearance except for the presence of mucosal absorptive cellsthat contain lipid postprandially and disappear after a prolonged period of either fat-free intake or fasting.Ref: Harrison; 19th edition; Page no: 1939