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Fig. 5 | BMC Pulmonary Medicine

Fig. 5

From: Atypical bronchial carcinoid with postobstructive mycobacterial infection: case report and review of literature

Fig. 5

Histology of the intrabronchial tumor: (a) (H&E stain, × 200) at low power showing sheets of monomorphic cells with speckled chromatin. Note mitoses (5 per 2 mm2). (a) MIB-1, indicating a proliferation index shows about ca 5% of tumor cells in cycle. Neuroendocrine differentiation has been confirmed in synaptophysine (c) and chromogranin A (d)

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