Abstract:
:Lymphoid follicles/aggregates in gastric biopsies have been traditionally linked to Helicobacter pylori gastritis, and less commonly to other inflammatory and neoplastic conditions. The frequency of such aggregates in normal stomachs has yet to be adequately evaluated. This is especially relevant when it comes to diagnosing non-specific chronic gastritis in biopsy specimens with chronic inflammation but no evidence of H pylori infection. Sleeve gastrectomies represent an opportunity to study adequately preserved gastric mucosa in patients who are otherwise asymptomatic and lack a history of gastric disease.To study sleeve gastrectomy specimens to quantify the amount of lymphoid follicles/aggregates and lymphocytic infiltration in normal stomachs.Sixty-eight bariatric sleeve gastrectomies and 13 control specimens from Whipple resections were examined for multiple histologic features including type, quantity, and distribution of chronic inflammation and lymphoid follicles/aggregates. Presence of H pylori was documented by both Hematoxylin and eosin-stained (H&E) and immunohistochemistry (IHC). Clinical information including age, sex, medication intake, prior endoscopy, and/or H pylori infection was recorded. The patient population was divided in 2 groups, H pylori negative versus H pylori positive, and statistical analysis was performed by a biostatistician.Two hundred sixty three fundic sections from 68 bariatric patients were examined. Fifty three patients were found to be H pylori-negative, compared with 15 who were positive for H pylori. Among the H pylori-negative group, the average number of lymphoid aggregates was 3.33, compared with an average of 6.26 in the H pylori positive group (the difference was statistically significant with a P-value of .008). The average number of plasma cells per high power field was 2.15 in the H pylori negative group, compared and average of 5.07 in the H pylori positive group (the difference was also statistically significant with a P-value <.001). Clinically, 10 of the 53 H pylori-negative patients had esophagogastroduodenoscopy (EGD) that showed endoscopic mild non-erosive gastric erythema. The remaining had no documentation of symptoms or medication intake, including Non-steroidal anti-inflammatory drugs (NSAIDs) and Proton Pump Inhibitors (PPI).Our results suggest that the presence of lymphoid aggregates and plasma cells infiltration can be a normal finding in otherwise normal gastric mucosa, though more pronounced in H pylori infected patients.
journal_name
Medicine (Baltimore)journal_title
Medicineauthors
Chakhachiro Z,Saroufim M,Safadi B,Attieh M,Assaf N,Shamseddine G,Tamim H,Boulos Fdoi
10.1097/MD.0000000000018926subject
Has Abstractpub_date
2020-02-01 00:00:00pages
e18926issue
6eissn
0025-7974issn
1536-5964pii
00005792-202002070-00017journal_volume
99pub_type
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