PMC3937271_01
Shows the section of breast tissue infiltrated by a moderately differentiated squamous cell carcinoma. The overlying epidermis is focally infiltrated by the tumor (H & E stain 100x).
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Later an excisional biopsy of the breast lesion showed moderately differentiated squamous cell carcinoma, likely metastatic in origin (Fig. 1).
Shows the section of lung tissue infiltrated by a moderately differentiated squamous cell carcinoma, morphology similar to breast tissue.
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A decision regarding CT guided lung biopsy was made and it revealed moderately differentiated squamous cell carcinoma of the lung (Fig. 2).