TABLE I.
| Characteristic | Value |
|---|---|
| Total cases | 257 |
| Sex [n (%)] | |
| Male | 155 (60) |
| Female | 84 (33) |
| Unknown | 18 (7) |
| Age (years) | |
| Median | 58 |
| Range | 18 months–91 years |
| Primary cancer site [n (%)] | |
| Lung | 113 (44) |
| Kidney | 31 (12) |
| Breast | 26 (10) |
| Colon | 15 (6) |
| Other | 67 (26) |
| Unknown | 5 (2) |
| Hand [n (%)] | |
| Right | 102 (40) |
| Left | 84 (33) |
| Both | 23 (9) |
| Unknown | 48 (19) |
| Digit {n=247 [n (%)]}a,b | |
| Thumb | 53 (21) |
| Second (index) | 35 (14) |
| Third (middle) | 68 (28) |
| Fourth (ring) | 37 (15) |
| Fifth (little) | 25 (10) |
| Unknown | 29 (12) |
| Metastasis location {n=351 [n (%)]}a | |
| Distal phalanx | 74 (21) |
| Metacarpal | 56 (16) |
| Proximal phalanx | 26 (7) |
| Middle phalanx | 16 (5) |
| Unspecified phalanx | 17 (5) |
| Other | 53 (15) |
| Unknown | 109 (31) |
| Type of lesion [n (%)] | |
| Single | 191 (74) |
| Multiple | 61 (24) |
| Unknown | 2 (1) |
| Treatment {n=272 [n (%)]}a | |
| Amputation | 50 (18) |
| Radiation | 30 (11) |
| Excision | 15 (6) |
| Systemic therapy | 10 (4) |
| Other | 7 (3) |
| None | 9 (3) |
| Unknown | 151 (56) |
| Survival (months) | |
| Mean | 6 |
a
Patient may have more than one affected digit, site of metastasis, or treatment option.
b
In some patients, acrometastasis affected other areas of the hands.