Rules for Classification

The classification applies only to gastrointestinal stromal tumours. There should be histological confirmation of the disease.

Anatomical Sites and Subsites

  • Oesophagus (C15)
  • Stomach (C16)
  • Small intestine (C17)

    1. Duodenum (C17.0)
    2. Jejunum (C17.1)
    3. Ileum (C17.2)

  • Colon (C18)
  • Rectum (C20)
  • Omentum (C48.1)
  • Mesentery (C48.1)

Regional Lymph Nodes

The regional lymph nodes are those appropriate to the site of the primary tumour; see gastrointestinal sites for details.

TNM Clinical Classification

T – Primary Tumour

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Dec 15, 2022 | Posted by in ONCOLOGY | Comments Off on STROMAL TUMOURS (GIST)

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TX Primary tumour cannot be assessed
T0 No evidence for primary tumour
T1 Tumour 2 cm or less in greater dimension (Fig. 319)
T2 Tumour more than 2 cm but not more than 5 cm (Fig. 319)
T3 Tumour more than 5 cm but not more than 10 cm (Fig. 320)