Thyroiditis
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Author:
Mikael Häggström [note 1]
Lymphoid follicle with a central germinal center surrounded by lymphocytes, which is a finding that can be seen in both focal lymphocytic thyroiditis and Hashimoto's disease.[1]
Thyroiditis is defined by a significant inflammatory infiltrate. When seen, check the patients medical records for known diagnoses or other obvious clues. Attempt to classify into one of the main types:[1]
| Type | Lymph follicles | Giant cells |
|---|---|---|
| Focal lymphocytic thyroiditis | Usually | No |
| Hashimoto thyroiditis | Usually | Relatively small and sparse |
| De Quervain's thyroiditis | No | Relatively large and numerous |
However, if no clear distinction can be made, and especially if the thyroiditis is not the primary reason for the biopsy or excision, it is acceptable to state "chronic thyroiditis, non-specific" without additional workup.
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Notes
- ↑ For a full list of contributors, see article history. Creators of images are attributed at the image description pages, seen by clicking on the images. See Patholines:Authorship for details.
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References
- ↑ 1.0 1.1 Knecht H, Saremaslani P, Hedinger C (1981). "Immunohistological findings in Hashimoto's thyroiditis, focal lymphocytic thyroiditis and thyroiditis de Quervain. Comparative study. ". Virchows Arch A Pathol Anat Histol 393 (2): 215-31. doi:. PMID 6895270. Archived from the original. .
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