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Table 4 Characteristics, treatments and responses for patients included in this study.

From: Malignant head and neck paragangliomas: Is there an optimal treatment strategy?

Summary of tumor characteristics, treatment and responses
  Primary Site Metastatic Sites Treatment Response
  Carotid Body Jugulo-tympanic Other Liver Lung Bone Other Radiation Chemotherapy Both Progression Stable Regression
By Gender              
   Men 1 (17%) 4 (67%) 1 (17%) 1 (17%) - 6 (100%) 3 (50%) 5 (83%) 4 (67%) 4 (67%) 5 (83%) 1 (17%) -
   Women 9 (69%) 2 (15%) 2 (15%) 4 (31%) 7 (54%) 7 (54%) 9 (69%) 9 (69%) 7 (54%) 6 (46%) 5 (38%) 4 (31%) 1 (8%)
By Age at Presentation              
   > 40 3 (33%) 3 (33%) 3 (33%) 2 (22%) 4 (44%) 6 (67%) 6 (67%) 7 (78%) 5 (56%) 5 (56%) 7 (78%) 1 (11%) -
   < = 40 7 (70%) 3 (30%) - 3 (33%) 3 (33%) 7 (78%) 6 (60%) 7 (70%) 6 (60%) 5 (50%) 3 (30%) 4 (40%) 1 (10%)
By Primary Site              
   Carotid Body 10 - - 3 (30%) 5 (50%) 6 (60%) 8 (80%) - - - 3 (30%) 3 (30%) 1 (10%)
   Jugulotympanic - 6 - 2 (33%) 1 (17%) 5 (83%) 3 (50%) - - - 5 (83%) 1 (17%) -
   Other - - 3 - 1 (33%) 2 (67%) 1 (33%) - - - 2 (67%) 1 (33%) -
By Treatment              
   Radiation 7 (70%) 6 (100%) 1 (33%) - - - - 14 - - 12 (92%) 1 (8%) 0 (0%)
   Chemotherapy 7 (70%) 3 (50%) 1 (33%) - - - - - 11 - 6 (55%) 2 (18%) 1 (9%)
   Both 6 (60%) 3 (50%) 1 (33%) - - - - - - 10 6 (60%) 2 (20%) 1 (10%)