Table 1 A summary of reported myoepithelioma/parachordoma cases in the upper limb (excluding the shoulder girdle)
From: Myoepithelioma within the carpal tunnel: a case report and review of the literature
Authors | Site | Length of History | Histology | Surgery (margins) | Local Recurrence | Metastasis |
|---|---|---|---|---|---|---|
Clabeaux et al 2008 [23] | Distal triceps | 3 m | Parachordoma, (nuclear atypia, one mitosis per 20 HPF) | Wide | None (3 m post op) | None (3 m post op) |
Pilavaki et al 2007 [24] | Hand (hypothenar, subcutaneous) | 4 y | Myoepithelioma (no mitoses) | Excisional biopsy (marginal margins) | None (9 m post op) | None (9 m post op) |
Gleason and Fletcher 2007 [5] | Hand | NA | Myoepithelial carcinoma | NA | Yes (7 y post op) | No |
| Â | Wrist | NA | Myoepithelial carcinoma | NA | NA | NA |
Hamada et al 2006 [25] | Hand (thenar eminence) | 3 y | Myoepithelioma | NA | NA | None (at diagnosis) |
Harada et al 2005 [8] | Forearm | 14 y | Myoepithelioma (nuclear atypia, 2-3 mitoses per 10 HPF) | Local excisional biopsy | NA | Lung mets (6 m post op) |
Colombat et al 2003 [2] | Wrist | 10 y | Myoepithelioma | Clear margins | None (5 m post op) | None (5 m post op) |
Šeparović et al 2001 [26] | Hand | 2 y | Parachordoma | Excisional biopsy (unknown margins) | None (20 m post op) | None (20 m post op) |
Folpe et al 1999 [27] | 3 cases in the arm (deep to superficial fascia) | NA | Parachordoma (< 1 mitosis per 20 HPF) | NA | None (min 4 m follow up) | None (min 4 m follow up) |
Michal et al 1999 [28] | Proximal thumb | NA | Myoepithelioma | NA | None (19 y post op) | None (19 y post op) |
Imlay et al 1998 [29] | Forearm (subcutaneous) | NA | Parachodroma No mitoses | NA | None (12 m post op) | None (12 m post op) |
Kilpatrick et al 1997 [30] | Hand | NA | Myoepithelioma (ductal differentiation, < 2 mitoses per 10 HPF) | NA | Yes (14 m post op) | NA |
| Â | Finger | 3 m | Myoepithelioma (myxoid features, < 2 mitoses per 10 HPF) | NA | None (2 y post op) | None (2 y post op) |
Fisher and Miettinen 1997 [31] | Triceps | 6 m | Parachordoma (rare mitoses, mild nuclear pleomorphism) | NA | None (2 y post op) | None (2 y post op) |
| Â | Wrist (attached to tendon of flexor carpi ulnaris) | NA | Parachordoma (rare mitoses, mild nuclear pleomorphism) | NA | NA | NA |
Nietzabitowski et al 1995 [9] | Palm | 4 y | Parachordoma | NA | Yes (3 m post op) | None (23 post op) |
Sangueza and White 1994 [32] | Finger (adjacent to proximal IP joint) | 5 y | Parachordoma (slight nuclear pleomorphism, no mitoses) | NA | NA | NA |
Dabska 1977 [33] | Arm | 7 m | Parachordoma | NA | None (10 y post op) | None (10 y post op) |
| Â | Distal radius | 2 m | Parachordoma | Likely wide margins | None (6 y post op) | None (6 y post op) |
| Â | Finger | NA | Parachordoma | Likely marginal or intralesional | None (5 y post op) | None (5 y post op) |