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Surgical Case Reports
Fig. 3 | Surgical Case Reports

Fig. 3

From: Ciliated muconodular papillary tumor with a growing cavity shadow that mimicked colorectal metastasis to the lung: a case report

Fig. 3

a Cyst cavity showing proliferation of papillary cells with cilia adjacent to the bronchi and mucous glands around the cystic wall (HE, ×20). b Mucous gland suggests alveolar structures were intact and composed of normal epithelial cells with no atypical cells (HE, ×200) in the resected tumor. c CK7 staining was strong and diffuse in most epithelial cells (×400). d Focal TTF-1 staining in occasional ciliated cells (×400). e Cilia cells were positive for BRAF staining (×400)

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