Simultaneous papillary carcinoma and mucosa-associated lymphoid tissue (MALT) lymphoma of the thyroid; a case report

Primary lymphoma of the thyroid is an uncommon malignancy, whereas papillary thyroid carcinoma is the most common thyroid malignancy. Both have an association with Hashimoto's thyroiditis. We discuss a case of an 83 year old male who presented with a large neck swelling, which subsequently proved to be a primary thyroid lymphoma (extra-nodal marginal zone) with concurrent papillary thyroid carcinoma. These tumours manifested on a background of Hashimoto's thyroiditis. To date there have only been 13 other cases of joint papillary thyroid carcinoma and thyroid lymphoma within the literature.
Source: Diagnostic Histopathology - Category: Pathology Authors: Tags: Short case Source Type: research