Mast Cell Esophagitis: A Novel Entity in Patients with Unexplained Esophageal Symptoms.
Adolfo A Ocampo, Robert M Genta, Evan S Dellon
PMID 37605054WHAT IT FOUND
60% of adults with unexplained esophageal symptoms, including solid-food dysphagia, had at least 60 mast cells/mm2, about 15 cells per high-power field.
Mast cell levels did not track with symptoms, labs, or atopy, so this does not prove cause or guide treatment.
Key findings
0160% of patients had at least 60 mast cells/mm2 in the esophageal epithelium, and 17% had at least 120 mast cells/mm2.
02Mast cell counts did not differ significantly between patients with and without specific symptoms, atopy, smoking, alcohol use, or treatments.
03Mast cell counts did not correlate with symptom duration, peripheral blood eosinophil level, IgE level, or CRP level.
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
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What it does not show
Single center, retrospective study in adults only. No control group and no treatment or follow-up data, so it cannot show mast cells caused symptoms or that therapy would help. Patients did not all have the same testing: 26 had both normal manometry and reflux testing, 43 had normal manometry only, 12 had normal reflux testing only, and 6 had neither. The cohort was highly selected, representing only a small fraction of patients with normal endoscopy. Most patients were taking PPIs, which could mask eosinophilic esophagitis if present. Tryptase staining quantifies mast cells but is not fully specific and did not show mast cell activation or subtypes. Endoscopy and biopsy slides were not re-reviewed for the study. Symptoms were recorded from medical records, not with validated patient-reported measures before and after treatment.
Declared interests
The authors report no conflicts of interest. The article lists non-U.S. and NIH extramural research support, but no sponsor role in design or writing is described.
The easy way to misread this
Do not conclude that mast cell esophagitis explains dysphagia or that mast cell-targeted treatment should be used. Mast cells were common, but counts did not correlate with symptoms, labs, or atopy, and the study had no control group, no treatment follow-up, and no proof of causation.