[…] seen in intestinal resection of intestinal bypass Damaged absorbing surface, as seen in celiac sprue, tropical sprue, Crohn disease, AIDS enteropathy, chemotherapy, or radiation therapy Infiltrating disease of the intestinal wall, such as lymphoma and amyloidosis [emedicine.medscape.com]

disease, cryptosporidiosis, and microsporidiosis Postabsorptive phase Obstruction of the lymphatic system, both congenital (eg, intestinal lymphangiectasia, Milroy disease) and acquired (eg, Whipple disease, neoplasm [including lymphoma], tuberculosis [emedicine.medscape.com]

Autoimmune enteropathy is primarily diagnosed in children presenting with intractable secretory diarrhea and villous atrophy. Autoimmune enteropathy is occurs as a result of antibodies directed against intestinal epithelial and goblet cells. [emedicine.medscape.com]

The clinical symptoms of MCAS include flushing, pruritis, hypotension, asthma, diarrhea, abdominal bloating, and cramping. [onlinelibrary.wiley.com]

Inadequate mixing of nutrients, bile, and pancreatic enzymes, as seen in rapid intestinal transit, gastrojejunostomy, total and partial gastrectomy, or intestinal resection after mesenteric emboli or thrombosis, also causes impaired hydrolysis. [emedicine.medscape.com]

In spite of the age difference, our patient and patient 4 of Fountain et al.9, with the same MAGEL2 mutation, share developmental and intellectual disability, feeding problems, neonatal hypotonia, contractures, minor facial anomalies, small hands, sleep [nature.com]

Acrodermatitis enteropathica is an autosomal recessive disease with selective inability to absorb zinc, leading to villous atrophy and acral dermatitis. [emedicine.medscape.com]