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haozhaoxing 离线
haozhaoxing 离线
haozhaoxing 离线
zhenshijian 离线
Carcinoid VS SmCC (overdiagnosing SmCC is a potential pitfall in crushed bronchial biopsies)
1. carcinoids may show crush artefact and dot-like CK – but not the Azzopardi phenomenon
2. chromatin texture, Ki-67 LI (if <20% it is unlikely to be SmCC, if >50% it is unlikely to be carcinoid) and stromal vessel features all help in the differential diagnosis
3. strong staining for CgA / synaptophysin, weak or negative TTF-1 and peripheral location favour carcinoid