Table 3.

Location of plasmacytomas at diagnosis and at first relapse.

Location*	At diagnosis	At first relapse
Paraskeletal	N = 230	N = 142
• Chest	92 (40%)	65 (45.7%)
• Paravertebral	90 (39.1%)	71 (50%)
• Skull	30 (13%)	24 (16.9%)
• Pelvis	26 (11.3%)	16 (11.2%)
• Long bones	3 (1.3%)	9 (6.3%)
Extramedullary	N = 26	N = 50
• Pleura, lung	6 (23%)	13 (26%)
• Skin, subcutaneous cell tissue, muscle	5 (19.2%)	20 (40%)
• Liver	4 (15.3%)	8 (16%)
• Other locations (EMPs: kidney, peritoneum)	15 (57.6%)	13 (26%)
• Central Nervous System	1 (3.8%)	4 (8%)

^*34% and 56% of patients had more than one location at diagnosis and first relapse, respetively.