8070/2 Epidermoid carcinoma in situ, NOS



Definitions

Vagina
ICD-O-3 topography code: C52

Squamous cell carcinoma in situ is a malignant epithelial neoplasm originating from and confined to the squamous epithelium, without invasion of the underlying tissues.



Bronchus and lung
ICD-O-3 topography code: C34

A malignant epithelial neoplasm originating from and confined to the squamous epithelium, without invasion of the underlying tissues.



Vulva
ICD-O-3 topography code: C51

Squamous cell carcinoma in situ is a malignant epithelial neoplasm originating from and confined to the squamous epithelium, without invasion of the underlying tissues.

Squamous cell carcinoma in situ arising in the vulva shares features with vulvar intraepithelial neoplasia (VIN), but in contrast to VIN, the lesion is highly differentiated, and the atypia is most prominent in or confined to the basal and parabasal epithelial layers1
 
Tavassoli FA, Devilee P (Eds.)
World Health Organization Classification of Tumours. Pathology and Genetics of Tumours of the Breast and Female Genital Organs.
3rd Edition
IARC Press: Lyon 2003



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Cervix uteri
ICD-O-3 topography code: C53

A malignant epithelial neoplasm originating from and confined to the squamous epithelium, without invasion of the underlying tissues
2
 
Tavassoli FA, Devilee P (Eds.)
World Health Organization Classification of Tumours. Pathology and Genetics of Tumours of the Breast and Female Genital Organs.
3rd Edition
IARC Press: Lyon 2003



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The term squamous cell carcinoma in situ of the uterine cervix is synonymous with and has been replaced by cervical intraepithelial neoplasia (CIN) grade 3.