Introductory Notes
The classifications apply to carcinomas of the skin, [excluding vulva (see Gynaecological Tumours), and penis (see Urological Tumours), and perianal skin (see Gastrointestinal Tumours)], to malignant melanomas of the skin including eyelid and to Merkel cell carcinoma.
Anatomical Sites
The following sites are identified by ICD‐O‐3 topography rubrics:
- Lip (excluding vermilion surface) (C44.0)
- Eyelid (C44.1)
- External ear (C44.2)
- Other and unspecified parts of face (C44.3)
- Scalp and neck (C44.4)
- Trunk excluding anal margin and perianal skin (C44.5)
- Upper limb and shoulder (C44.6)
- Lower limb and hip (C44.7)
- Scrotum (C63.2)
Regional Lymph Nodes (Figs. 322, 323)
The regional lymph nodes are those appropriate to the site of the primary tumour.
Unilateral Tumours
- Head, neck: Ipsilateral preauricular, submandibular, cervical, and supraclavicular lymph nodes
- Thorax: Ipsilateral axillary lymph nodes
- Upper limb: Ipsilateral epitrochlear and axillary lymph nodes
- Abdomen, loins, and buttocks: Ipsilateral inguinal lymph nodes
- Lower limb: Ipsilateral popliteal and inguinal lymph nodes
- Anal margin and perianal skin: Ipsilateral inguinal lymph nodes
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OF SKIN OF THE HEAD AND NECK (ICD‐O‐3 C44.0, C44.2–4)
CELL CARCINOMA OF SKIN (ICD‐O‐3 C44.0–9, C63.2)
MELANOMA OF SKIN (ICD‐O‐3 C44, C51.0, C60.9, C63.2)
OF THE SKIN OF THE EYELID (ICD‐O‐3 C44.1)
PELVIS AND URETER (ICD‐O‐3 C65, C66)
STROMAL TUMOURS (GIST)
OF THE SKIN (EXCLUDING EYELID, HEAD AND NECK, PERIANAL, VULVA, AND PENIS) (ICD‐O‐3 C44.5–7, C63.2)
(ICD‐O‐3 C18.1)
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