Microscopic morphology of cervicitis

Microscopic morphology of cervicitis is characterized by an inflammatory infiltrate in the cervical mucosa predominantly composed of neutrophils, which signifies acute inflammation, alongside variable lymphocytes and plasma cells in chronic inflammation NICE CKS Geremew et al. 2025. The cervical epithelium may show reactive changes including epithelial cell degeneration and desquamation with infiltrating leukocytes in the superficial layers NICE CKS. In infectious cervicitis caused by common pathogens such as Chlamydia trachomatis, microscopic examination can reveal intracellular inclusions within epithelial cells, reflecting the intracellular nature of this pathogen Kabbour et al. 2025. Granulomatous cervicitis, typically due to tuberculosis, is identified microscopically by granuloma formation consisting of epithelioid histiocytes, Langhans-type multinucleated giant cells, and central caseous necrosis, which may be observed even if mycobacteria are not always detected by culture or staining Geremew et al. 2025.

Microscopic evaluation often reveals disruption of the normal epithelial architecture, infiltration of polymorphonuclear cells especially neutrophils in the epithelium and subepithelial tissue, and reactive vascular changes such as congestion NICE CKS. The presence of activated leukocytes and increased numbers of parabasal epithelial cells suggest epithelial injury and repair, particularly in bacterial aerobic cervicitis or vaginitis Agoni 2026. Some intracellular pathogens like Chlamydia may evade detection in routine microscopy, requiring specialized nucleic acid amplification tests to confirm diagnosis Kabbour et al. 2025.

Additionally, microscopic morphology can vary according to the causative agent: fungal infections (e.g., Candida) show yeast forms and hyphae invading the cervical epithelium, while protozoal infections like Trichomonas vaginalis demonstrate motile flagellated organisms on wet mount microscopy NICE CKS Agoni 2026. Inflammation may be accompanied by reactive epithelial changes including basal cell hyperplasia and varying degrees of epithelial necrosis depending on severity and duration. The microscopic changes reflect a spectrum from mild inflammation with minimal epithelial disruption to severe ulcerative or granulomatous patterns that may mimic malignancy clinically and histologically Geremew et al. 2025 NICE CKS.