Allergic Mastocytic Gastroenteritis and Colitis: An Unexplained Etiology in Chronic Abdominal Pain and Gastrointestinal Dysmotility

Table 6

Comparison between different GI mast cell diseases [20, 24].

	Cardinal symptoms	Number of mast cells/HPF	Serum markers
Mastocytic enterocolitis	Abdominal pain, diarrhea	>20	N/A
Mast cell Activation syndrome	Abdominal pain, dermatographism, flushing	17–23	Serum tryptase
Allergic mastocytic Gastroenteritis and colitis	Abdominal pain, dysmotilitysymptoms (e.g., early satiety, bloating), nocturnal awakening	>40	Histamine, IgE