normal cervix

.

Indications for Colposcopy

1. Abnormal smear (80%)

2. Clinical indications (20%) or a suspicion

of cancer

WHY DO WE NEED TO

UNDERSTAND THE

NORMAL CERVIX ?

AS A PREREQUISIT TO

STUDYING THE

ABNORMAL CERVIX

THE ORIGINAL

SQUAMO-COLUMNAR

JUNCTION

Metaplastic epithelium

Squamous

Epithelium

Columnar Epithelium

SCJ

Squamous

Epithelium

1

2

3

THE NEW SQUAMO-

COLUMNAR JUNCTION

THE

TRANSFORMATION

ZONE

Original

SCJ

Original

SCJ

New

SCJ

STAGES OF CERVICAL

EPITHELIAL CHANGE

1 LATE FOETAL LIFE

2 ADOLESENCE

3 PREGNANCY

4 MENOPAUSE

1 LATE FOETAL LIFE

2 ADOLESENCE

3 PREGNANCY

Immediate post-partum

6 weeks post-partum

4 MENOPAUSE

New

SCJ

Original

SCJ

Atypical

Epithelium

Original

SCJ

Columnar Epithlium

Original SCJOriginal

SCJ

Atypical Epithelium

Atypical Epithelium

New SCJ (Unsatisfactory)

Type 1

Completely

ectocervical

Fully visible

Small or large

Transformation Zone

Classification

Type 2

Has endocervical

component

Fully visible

May have

ectocervical

component, which

may be small or

large

Transformation Zone

Classification

Transformation Zone

Classification

Type 3

Has endocervical

component

Not fully visible

May have ectocervical

component, which

may be small or large