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Table 1 Classification scores for radiotherapy and chemotherapy induced haemorrhagic cystitis: RTOG/ EORTC and Gray scores (modified from [14] and [15])

From: Long-term experience of hyperbaric oxygen therapy for refractory radio- or chemotherapy-induced haemorrhagic cystitis

Classification scores for chronic radio- and chemotherapy induced haemorrhagic cystitis
Radiotherapy RTOG/ EORTC scale Grade 1 Grade 2 Grade 3 Grade 4
Microscopic haematuria, requiring no medication; Minor telangiectasia Moderate haematuria requiring medication; Moderate telangiectasia Severe haematuria; Severe telangiectasia Necrosis; Severe haemorrhagic cystitis
Chemotherapy Gray score Grade 0 Grade 1 Grade 2 Grade 3
Normal, no haematuria Mild haematuria with telangiectasia or dilatation of the bladder vessels Severe haematuria with mucosal haematomas Severe haematuria with intravesical clots