title: Hashimoto's Thyroiditis and Medullary Carcinoma of Thyroid.
abstract: Hashimoto's thyroiditis (HT) has been found to be associated with lymphoma, papillary carcinoma and Hürthle cell neoplasms of thyroid. In contrast, there are only a few reports of co-existence of HT with medullary carcinoma of thyroid. An overall prevalence of medullary carcinoma of only 0.35% has been reported in HT patients. Such a rare combination is being presented here. A 33 year old female presented with history of goiter for one year. Fine needle aspiration cytology (FNAC) of the swelling revealed cytological features suggestive of medullary carcinoma of thyroid. Histopathological examination of total thyroidectomy specimen revealed Hashimoto's thyroiditis along with medullary carcinoma of thyroid. Although Hashimoto's thyroiditis can uncommonly co-exist with thyroid neoplasm, its association with medullary carcinoma is extremely rare and hence being presented.
authors.affiliation: Department of Pathology, Medical College.
authors.forename: S
authors.initials: S
authors.lastname: Dasgupta
authors.affiliation: ESI PGIMSR, Manicktala.
authors.forename: S
authors.initials: S
authors.lastname: Chakrabarti
authors.affiliation: IPGME&R.
authors.forename: P K
authors.initials: PK
authors.lastname: Mandal
authors.affiliation: RG Kar Medical College and Hospital, Kolkata, West Bengal, India.
authors.forename: S
authors.initials: S
authors.lastname: Das
mesh_terms: D000328:Adult; D018278:Carcinoma, Neuroendocrine / Q000150:complications* / Q000473:pathology / Q000601:surgery; D005260:Female; D050031:Hashimoto Disease / Q000150:complications* / Q000473:pathology / Q000601:surgery; D006801:Humans; D013964:Thyroid Neoplasms / Q000150:complications* / Q000473:pathology / Q000601:surgery; D013965:Thyroidectomy
keywords: association; hashimoto's thyroiditis; histopathology; medullary carcinoma of thyroid.