Rare vascular malformations of the GI tract:  Capillary hemangioma of the bowel and Intestinal mesentaric lymphangioma
Capillary hemangioma is a rare cause of GI bleeding in newborns.  Diagnosis was made on exploratory laparotomy in this difficult case which presented with an unknown cause of GI bleeding.
In a separate case, intestinal mesentaric lymphangioma presented as abdominal distention.  This is another rare vascular malformation of the GI t


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Newborn with persistent GI bleeding of unknown etiology


Laparotomy shows extensive capillary hemangioma confirmed by appendiceal biopsy.

Intestinal Mesenteric Lymphangioma


Note the milky fluid contained within the lymphatic malformation.