Table 1.
Clinicopathologic findings of previously reported head and neck PEComas
| Author | Gender/age(years) | Size/location | Giant cells | Mitoses/10HPF | Necrosis | Follow-up |
|---|---|---|---|---|---|---|
| Banerjee | Female/39 | 2.0 cm/Nasal cavity | Absent | Very few | Absent | 12 months/ANED |
| Lehman | Female/49 | 5.0 × 3.8 × 3.5 cm/Skull base | Absent | 3 per HPF | Absent | Spine, lung met, DOD,3 months |
| Folpe | Male/80 | 2.0 cm/Scalp | Present | Greater than 10 per 50 HPF | Absent | Lost to follow up |
| Folpe | Female/77 | 2.6 cm/Neck soft tissue | Present | 1 per 50 HPF | Absent | 6 months/ANED |
| Iyengar | Female/9 | 1.2 × 1.0 × 0.8 cm/Orbit | Absent | Very few | Absent | 7 months/ANED |
| Koutlas | Female/46 | 4.0 × 2.0 cm/Hard palate | Absent | Absent | Present | 20 months,/ANED |
| Kuroda | Male/79 | Nasal cavity | Absent | Absent | Absent | Follow up too short |
| Furusato | Female/26 | 2.0 × 1.7 × 1.4 cm/Eyelid | Absent | Very few | Absent | 24 months/ANED |
| Furusato | Male/7 | 1.3 cm/Ciliary body | Absent | Very few | Absent | 24 months/ANED |
| Guthoff | Male/54 | 1.5 × 1.0 × 1.0 cm/Eyelid | Absent | Very few | Absent | 17 months/ANED |
| Calder | Male/76 | 1.6 × 1.3 × 1.0 cm/Scalp | Absent | 2 per 10 HPF | Absent | 5 years,Cervical node met/ANED |
| Ghazali | Female/32 | 2 cm/Cheek | Present | 2 per 10 HPF | Absent | years/ANED |
| Argani | Male/80 | 2 cm/Scalp | Absent | Absent | Absent | NA |
| Bandhlish | Female/18 | 2.9 cm/Left nasal | Absent | Absent | Absent | 26 months/ANED |
| Bandhlish | Female/71 | Nasal cavity | Absent | Absent | Absent | Lost to follow-up |
| Bandhlish | Female/26 | Glottic larynx | Absent | Absent | Absent | 8 years/ANED |
HPF high power field, met metastases, DOD dead of disease, ANED alive with no evidence of disease