PEIR Digital Library

Welcome to the Pathology Education Informational Resource (PEIR) Digital Library, a multidisciplinary public access image database for use in medical education.

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GROSS: ENDOCRINE: Thyroid: Carcinoma: Gross natural color section through thyroid and trachea apparently fibrotic lesion said to be undifferentiated carcinoma had metastases to lungs, pleura, liver and regional nodes 70yof also had colon carcinoma