Papillary Thyroid Cancer and Lung Adenocarcinoma Presenting as Two Primary Malignancies in a Patient with Symptomatic Goiter

<div>Thyroid biopsy: TTF1 immunostain 100x magnification in neck mass. Brown is positive in nucleus. Thyroid transcription factor-1 is a nuclear protein important in regulating gene expression in thyroid and lung tissue.</div>

Case Reports in Medicine

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Figure 4

Figure 4: Papillary Thyroid Cancer and Lung Adenocarcinoma Presenting as Two Primary Malignancies in a Patient with Symptomatic Goiter 