The Utility of Immunohistochemistry in Differentiating Metastatic Primary Squamous Cell Carcinoma of the Thyroid from a Primary Lung Squamous Cell Carcinoma

<div>CT scan (axial) showing a 4.3 × 3.4 cm spiculated hyperechoic lesion in the left upper lobe abutting the pleura.</div>

Case Reports in Endocrinology

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Figure 3: The Utility of Immunohistochemistry in Differentiating Metastatic Primary Squamous Cell Carcinoma of the Thyroid from a Primary Lung Squamous Cell Carcinoma 

Figure 3 | The Utility of Immunohistochemistry in Differentiating Metastatic Primary Squamous Cell Carcinoma of the Thyroid from a Primary Lung Squamous Cell Carcinoma 