Metastatic Medullary Carcinoma of Thyroid to Breast; A Case Initially Diagnosed as Primary Invasive Lobular Carcinoma: A Case Report
Korean Journal of Pathology
;
: 412-415, 2007.
Article
in Korean
| WPRIM
| ID: wpr-215308
ABSTRACT
Metastasis to the breast from medullary carcinoma of the thyroid is extremely rare. We report a case of metastatic medullary carcinoma of the thyroid which presented as multiple breast masses with ipsilateral axillary lymphadenopathy in a 48-year-old woman. Six years ago, she underwent total thyroidectomy and neck dissection because of palpable neck masses, with a diagnosis of medullary thyroid carcinoma. Histological features of breast masses showed single- file or linear-cord arrangements, with plasmacytoid appearance, and the initial diagnosis was invasive lobular carcinoma. She underwent modified radical mastectomy. The tumor cells were diffusely positive for E-cadherin, calcitonin and thyroid transcription factor-1 (TTF-1) and were metastatic medullary carcinoma of thyroid. In the patients with a history of medullary carcinoma of the thyroid, a careful examination is necessary for a breast mass composed of solid and cord-like clusters of small round to ovoid cells with plasmacytoid appearance. Immunohistochemical staining for E-cadherin, calcitonin and TTF-1 could be helpful for differential diagnosis.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Neck Dissection
/
Thyroid Gland
/
Thyroidectomy
/
Breast
/
Calcitonin
/
Thyroid Neoplasms
/
Mastectomy, Modified Radical
/
Cadherins
/
Carcinoma, Medullary
/
Carcinoma, Lobular
Type of study:
Diagnostic study
Limits:
Female
/
Humans
Language:
Korean
Journal:
Korean Journal of Pathology
Year:
2007
Type:
Article
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