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Updated: Sep 4, 2025

An Efficient and Simple Method to Establish NK and T Cell Lines from Patients with Chronic Active Epstein-Barr Virus Infection
Published on: March 30, 2018
[Liver and colonic manifestation of active chronic infection by Epstein Barr virus]
Alejandra Maricela Sabillón-Mendoza1, Sharon María Imbett-Yepez1, Karen Ignorosa-Arellano1
1Departamento de Gastroenterología y Nutrición, Instituto Nacional de Pediatría, Coyoacán, México.
Introduction:
Chronic active Epstein Barr virus infection (CAEBV) is a rare condition, where the body is unable to counteract Epstein Barr viral replication (EBV), leading the patient to a chronic state with variable symptoms. Early recognition of infrequent or atypical clinical manifestations is relevant due to the particularities of their management and prognosis.
Objective:
to describe a case of CAEBV manifes ted with colitis and hepatitis, summarizing the clinical-pathological and endoscopic characteristics and their evolution.
Clinical Case:
A 6-year-old girl, previously healthy, presented recurrent episodes of jaundice, hepatosplenomegaly, and fever. EBV hepatitis was diagnosed with a blood viral load of 328,000 copies / mL. Her liver biopsy revealed Epstein-Barr virus-encoded small RNAs (EBER). She evolved with mucosanguineous diarrhea and weight loss; the colonoscopy showed loss of the haustral pattern, multiple aphthous ulcers covered with fibrin, and 7 million copies of EBV / gram of tissue were found in the colon. T-cell lineage infection was identified, therefore Rituximab was started, with a decrease in viral load, complete resolution of diarrhea, and improvement in liver function tests. The definitive treatment was bone marrow transplantation.
Conclusions:
CAEBV is a serious disor der, little documented, and should be considered in the face of a prolonged or intermittent course of hepatitis, accompanied by general and gastrointestinal manifestations such as chronic diarrhea, hematochezia, and weight loss, since its outcome without treatment can be fatal.
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