46-year-old female suffering from Sore throat and pyrexia. Partial resection of a unilaterally enlarged thyroid gland.
- The thyroid gland parenchyma is partly intact with signs of hyperstimulation, and also contains focally destroyed and scarred areas.
- The follicular epithelium is destroyed and infiltrated by lymphocytes, plasma cells and histiocytes.
- The inflammation has a granulomatous aspect with histiocytes and histiocytic giant cells, some of which contain colloid.
As this type of thyroiditis commonly only affects (and destroys) parts of the thyroid gland, hypothyroidism rarely occurs as a consequence; temporary hypothyroidism is possible. The disease usually heals spontaneously within a few months.