Conventional Adenocarcinoma In Situ


D efinition Precursor lesion to invasive endocervical adenocarcinoma.

Clinical Features

Epidemiology

  • Average age at diagnosis is 38 years.

  • Human papillomavirus (HPV) related (>90%), especially types 16 and 18 in roughly equal proportion.

  • About half of cases have a concurrent squamous intraepithelial lesion (SIL).

  • Positive association with oral contraceptive use, although a potential mechanism is unclear.

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