Fig. 2

Histologic and immunohistochemical features of large-cell, small-cell G-NEC, and large and small cell mixed type G-NEC. Al Large cell G-NEC. A2 Small cell G-NEC. A3 Large and small cell mixed type of G-NEC. For large cell G-NEC: B1 Syn; C1 CgA; D1 CD56; E1 Ki-67. For small cell G-NEC: B2 Syn; C2 CgA; D2 CD56, E2 Ki-67. For Large and small cell mixed type of G-NEC. B3 Syn; C3 CgA; D3 CD56; E3 Ki-67