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Rev Esp Enferm Dig. 2020 Feb 5. doi: 10.17235/reed.2020.6391/2019. [Epub ahead of print]

Duodenal lymphogram as a complementary tool in the diagnosis of celiac disease in adults.

Author information

1
Servicio de Aparato Digestivo, Hospital Clínico Universitario de Valladolid, España.
2
Department of Clinical and Experimental Medicine, Linköping University, Sweden.
3
Unidad Inmunología de las Mucosas. IBGM, Universidad de Valladolid.
4
Anatomía Patológica, Hospital Clínico Universitario de Valladolid.
5
Análisis Clínicos, Hospital Universitario Río Hortega.
6
Servicio de Aparato Digestivo, Hospital Clínico Universitario de Valladolid, ESPAÑA.

Abstract

INTRODUCTION:

celiac disease (CD) patients have a specific pattern of lymphocytic infiltrate in the duodenal mucosa. Flow cytometry is a complementary tool for the diagnosis of CD, which allows the quantification and characterization of intraepithelial lymphocytes (IELs) by what is commonly called a lymphogram. Here we describe our experience with this technique in the diagnosis of CD in adult patients.

METHODS:

lymphograms from 157 patients performed in our center between 2009 and 2017 were retrospectively analyzed. Fourteen patients had a previous diagnosis of CD and followed a gluten-free diet (GFD), 21 had a new diagnosis of CD and the remaining were considered as non-celiac. The association of the lymphogram results (total IELs, CD3- lymphocytes and TcRγδ lymphocytes) with the CD diagnosis, compliance with the GFD, time since diagnosis and IgA anti-TG2 titer were determined.

RESULTS:

the area under the ROC curve of TcRγδ lymphocytes for CD patients varied between 0.86 and 0.86. The percentage of TcRγδ lymphocytes in GFD-treated patients was lower; 12 (8.5) vs 20.5 (8.7), p = 0.0153. However, it remained high compared to non-CD; 12 (8.5) vs 6.7 (6), p = 0.135. The time since diagnosis and IgA anti-TG2 titer correlated with the lymphogram results. Helicobacter pylori infection and treatment with angiotensin receptor antagonist 2 (ARA2) were associated with differences in the lymphogram results in patients without CD.

CONCLUSIONS:

the duodenal lymphogram is a reliable complementary tool in adults for the diagnosis of CD. However, compliance and duration of the GFD and other factors may condition its diagnostic capacity.

PMID:
32022573
DOI:
10.17235/reed.2020.6391/2019
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