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Volume definition: Gross Tumour Volume (GTV)
GTV
• The gross palpable, visible or demonstrable extent of
malignant disease
• May consist of primary tumour, nodal, or metastases
• No GTV if tumour has been removed
GTV
Basal cell carcinoma
Squamous cell carcinoma
of the skin
Squamous cell carcinoma
of the larynx