title: Quantitative distribution of inflammatory cells in recurrent aphthous stomatitis.
abstract: Histologic quantitation of leukocytes in biopsies of recurrent aphthous ulcers revealed at least two morphologically-distinct inflammatory infiltrates. Lymphocytes were found consistently in pre-ulcerative lesions and in the expanding margins of the developing ulcer. In contrast, polymorphonuclear leukocytes predominated only in areas of frank ulceration.
mesh_terms: D004848:Epithelium / Q000473:pathology; D006801:Humans; D007958:Leukocyte Count; D007962:Leukocytes / Q000473:pathology*; D009000:Monocytes / Q000473:pathology; D009061:Mouth Mucosa / Q000473:pathology; D009504:Neutrophils / Q000473:pathology; D012008:Recurrence; D013281:Stomatitis, Aphthous / Q000473:pathology*