PMC3332391_01
CT scans with multiple bilateral nodules and right pleural effusion.
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fig1
As result of this finding a computed tomography (CT) was performed and showed a right lower lobe mass with contralateral metastases (Figure 1).
CT scans which show rectal mass.
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Three months later the patient presented abdominal pain and the CT scan showed progression of the disease with an increase in size and number of lung nodules and the presence of a thickening of the rectum wall with enlarged regional lymph nodes (Figure 2).
Microscopic findings: (a) (hematoxylin eosin (HE) 10x) primary squamous cell carcinoma. (b) (HE 10x) keratin deposits and digestive glands in rectal metastasis.
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fig3
The rectal biopsy was reported as a metastasis from SCC with identical morphological and immunohistochemistry pattern than the lung tumour (CD5/6+, CDX2, TTF1, and CK7-) (Figure 3).