Table 1.
Patient Characteristics
| Sample | Age | Sex | Anatomic Site | Specific Acral Site | Race | Hispanic or Latina/Latino/Latinx | Phototype1 | Chronicity |
|---|---|---|---|---|---|---|---|---|
| HPE-1 | 61 | M | L hand | Palmar | Black or African American | No | VI | N/A |
| HPE-22 | 65 | F | R foot | Unknown | White | Yes | N/A | N/A |
| HPE-32 | 65 | F | L hand | Unknown | White | Yes | N/A | N/A |
| HPE-4 | 62 | M | L hand | Palmar | White | No | I | N/A |
| HPE-5 | 58 | M | R foot | Unknown | White | No | I | N/A |
| HPE-6 | 52 | F | R foot | Unknown | White | No | II | 8 mo |
| HPE-7 | 52 | M | L foot | Lateral | White | No | II | 1 y |
| HPE-8 | 70 | M | R hand | Palmar | White | No | II | 3 y |
| HPE-9 | 33 | F | R hand | Unknown | Black or African American | No | VI | N/A |
| HPE-10 | 11 | M | L foot | Plantar | White | Yes | III | 2 y |
| HPE-11 | 51 | F | L foot | Lateral | White | No | II | 3 y |
| HPE-12 | 58 | M | L hand | Palmar | White | No | II | 10 mo |
| MFPP-1 | 84 | M | L hand | Unknown | White | No | N/A | N/A |
| MFPP-2 | 86 | M | L foot | Plantar | White | No | I | N/A |
| MFPP-3 | 46 | M | L foot | Lateral | White | No | II | 1 mo |
| MFPP-4 | 62 | M | L foot | Lateral | White | No | N/A | N/A |
| MFPP-5 3 | 72 | M | L hand | Palmar | N/A | No | I | N/A |
| MFPP-6 3 | 72 | M | R hand | Palmar | N/A | No | I | N/A |
| MFPP-7 3 | 72 | M | R ankle | Dorsal | N/A | No | I | N/A |
| MFPP-8 3 | 72 | M | R ankle | Dorsal | N/A | No | I | N/A |
| NL-1 | 35 | F | L foot | Dorsal | White | N/A | N/A | Normal skin |
| NL-2 | 68 | F | L foot | Dorsal | White | No | II | Normal skin |
| NL-3 | 59 | F | R foot | Lateral | N/A | N/A | II | Normal skin |
| NL-4 | 65 | F | L hand | Palmar | White | No | II | Normal skin |
| NL-5 | 54 | M | L foot | Unknown | White | No | II | Normal skin |
| NL-6 | 31 | F | L foot | Plantar | N/A | N/A | N/A | Normal skin |
| NL-7 | 74 | F | R hand | Unknown | White | No | I | Normal skin |
| NL-8 | 63 | M | R hand | Dorsal | N/A | N/A | N/A | Normal skin |
| NL-9 | 69 | F | R foot | Plantar | White | No | II | Normal skin |
| PP-1 | 71 | F | R foot | Unknown | White | No | N/A | N/A |
| PP-2 | 57 | F | R foot | Lateral | White | No | I | 1 wk |
| PP-3 | 63 | M | L hand | Dorsal | White | No | II | 3–4 y |
| PP-4 | 48 | F | R foot | Plantar | White | No | II | N/A |
| PP-5 | 82 | F | R hand | Unknown | White | Yes | N/A | N/A |
| PP-6 | 78 | M | L hand | Dorsal | White | No | II | 5–6 wk |
| PP-7 | 56 | M | L hand | Dorsal | Black or African American | No | V | 2 y |
| PP-8 | 38 | M | L hand | Dorsal | White | No | III | >10 y |
| NAE-1 | 28 | F | L upper back | Nonacral | Asian | No | III | 1.5 y |
| NAE-2 | 60 | M | R neck | Nonacral | White | No | III | N/A |
| NAE-3 | 26 | F | R axilla | Nonacral | White | No | II | 1.5 y |
| NAE-4 | 24 | M | L arm | Nonacral | Black or African American | No | VI | 5 mo |
| NAE-5 | 35 | F | R hip | Nonacral | Black or African American | No | VI | >1 y |
| NAE-6 | 40 | M | L neck | Nonacral | Black or African American | No | VI | 20 y |
| NAE-7 | 51 | M | R calf | Nonacral | White | No | II | N/A |
| NAE-8 | 33 | F | R hip | Nonacral | N/A | N/A | N/A | N/A |
| NAE-9 | 50 | M | L lower back | Nonacral | White | No | I | N/A |
| NAE-10 | 15 | M | R antecubital fossa | Nonacral | Asian | No | III | N/A |
| NAP-1 | 53 | M | L flank | Nonacral | White | No | I | N/A |
| NAP-2 | 40 | M | R retroauricular neck | Nonacral | N/A | Yes | III | 1 y |
| NAP-3 | 60 | F | R mid back | Nonacral | N/A | N/A | N/A | N/A |
| NAP-4 | 29 | M | L elbow | Nonacral | White | N/A | N/A | N/A |
| NAP-5 | 49 | F | L thigh | Nonacral | White | No | II | N/A |
| NAP-6 | 40 | F | L upper back | Nonacral | Black or African American | No | IV | 3 wk |
| NAP-7 | 62 | M | R thigh | Nonacral | White | No | II | N/A |
| NAP-8 | 18 | M | R arm | Nonacral | White | No | N/A | N/A |
| NAP-9 | 48 | M | R arm | Nonacral | White | No | II | 4 y |
| NAP-10 | 25 | F | R lower back | Nonacral | Black or African American | No | V | 5 y |
Abbreviations: HPE, hyperkeratotic palmoplantar eczema; MFPP, mycosis fungoides palmaris et plantaris; NL, normal acral skin; PP, palmoplantar psoriasis; NAE, nonacral eczema; NAP, nonacral psoriasis; F, female; M, male; R, right; L, left; N/A, data not available.
1
According to the Fitzpatrick phototype scale.
2
These samples came from the same patient.
3
These samples came from the same patient.