Waldmann disease is a rare disease characterized by enlargement of the lymph vessels supplying the lamina propria of the small intestine.Although its prevalence is unknown, it being classified as a "rare disease" means that less than 200,000 of the population of the United States are affected by this condition and its subtypes.
Signs and symptoms
Signs and symptoms of the disease include diarrhea, nausea, swelling of the legs, protein-losing enteropathy, immunodeficiency and loss of lymphatic fluid into the intestines. [Source: Wikipedia 
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