Polypoid Carcinoma of the Oropharynx with Stromal Ossifying Myofibroblastic Proliferation: A Case Report and Literature Review
Table 1
Immunoreactivity of the neoplasm.
Antigen (antibody clone)
dilution
Immunoreactivity
Superficial layer
Core
ALK
1 : 25
−
−
BCL2
1 : 50
−
+f
Calponin
1 : 50
−
±
CD31
1 : 20
+gt
−
CD34
1 : 20
+gt
−
CD99
1 : 250
−
+
CD117
1 : 400
−
−
CK (clone AE1/AE3)
1 : 50
+f
−
CK 5/6
1 : 50
−
−
CKhmw (clone 34βE12)
1 : 100
−
−
Desmin
1 : 50
−
−
EMA
1 : 50
±
Muscle-specific actin
1 : 50
−
+
Ki-67
1 : 75
35% positive
25%
P63
1 : 75
±f
S100
−
−
Smooth muscle actin
1 : 50
−
+
Vimentin
1 : 50
−
+
antibodies are from Dako and monoclonals unless otherwise indicated. antibody. CK, cytokeratin; +, positive; −, negative; ±, positivity observed in <15% of cells in the sample; gt, granulation tissue; f, focal.