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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
  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
  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)
  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)
  Distal radius 2 m Parachordoma Likely wide margins None
(6 y post op)
None
(6 y post op)
  Finger NA Parachordoma Likely marginal or intralesional None
(5 y post op)
None
(5 y post op)
  1. NA (not available), y (years), m (months), HPF (high power fields)
  2. In three cases there was local recurrence and one case resulted in lung metastases.