Malformación arteriovenosa en intestino delgado como causa de sangrado  gastrointestinal oscuro: Dos casos aleccionadores: Small bowel arteriovenous malformation as a cause of dark gastrointestinal bleeding:  Two instructional cases

Eugenio Américo Palomino Portilla; María del Pilar Quiñones Ávila; Isaira Giovanna Torpoco Baquerizo; María Angélica Medrano Huallanca; Katia Sofía Palomino Aguilar

doi:10.25176/RFMH.v23i1.5290

Authors

Eugenio Américo Palomino Portilla Instituto de investigaciones en Ciencias Biomédicas, Universidad Ricardo Palma. Lima, Perú. https://orcid.org/0000-0003-0525-2402
María del Pilar Quiñones Ávila Servicio de Patología quirúrgica, Hospital Edgardo Rebagliati Martins. Lima, Perú. https://orcid.org/0000-0001-8540-305X
Isaira Giovanna Torpoco Baquerizo Hospital Emergencia Ate-Vitarte. Lima, Perú. https://orcid.org/0000-0002-2612-8091
María Angélica Medrano Huallanca Hospital Emergencia Ate-Vitarte. Lima, Perú. https://orcid.org/0000-0002-0897-0293
Katia Sofía Palomino Aguilar Centro de Salud Arcata, Gerencia Regional de Salud de Arequipa. Arequipa, Perú. https://orcid.org/0000-0001-9332-0246

DOI:

https://doi.org/10.25176/RFMH.v23i1.5290

Keywords:

Arteriovenous malformation, small bowel, obscure digestive bleeding.

Abstract

ABSTRACT

Introduction: Digestive bleeding can put patients’ lives at risk, even more so when the origin is not located in routine upper and lower endoscopy. The small intestine is the largest portion of the digestive tract and being a source of bleeding means a diagnostic and therapeutic medical challenge. Clinical case: We presented cases of two female patients, 53 and 60 years old, who develop digestive bleeding, locating its origin in the small bowel and undergoing surgical removal of the affected intestinal segment. The anatomopathological study finds malformed arteries and veins that communicate without an intermediate capillary bed. The diagnosis was arteriovenous malformation, a rare entity in the small bowel. Both cases are reviewed with emphasis on the histopathological criteria and their clinical correlation.

Keywords: Arteriovenous malformation, small bowel, obscure digestive bleeding.

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