Soft tissue metastases from differentiated thyroid cancer diagnosed by 18F FDG PET-CT

Califano, Inés; Quildrian, Sergio Damián; Coduti, Martín; Bilbao, Erica Rojas; Otero, J; Califano, L.

doi:10.1590/s0004-27302013000400007

Cited by 9 publications

(7 citation statements)

References 16 publications

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“…1 ). In 13 published studies (30%), there was no reference to PTC/FTC metastasis to the muscles in either the title or the summary ( 10 , 24 , 28 , 29 , 31 , 35 , 40 – 43 , 48 , 50 , 51 ).…”

Section: Resultsmentioning

confidence: 99%

Skeletal muscle metastases from papillary and follicular thyroid carcinomas: An extensive review of the literature

Herbowski¹

2018

Oncol Lett

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Skeletal muscle metastasis of papillary or follicular thyroid cancer (PTC/FTC) is a rare finding; only 11 cases of skeletal muscle PTC or FTC metastasis have been included in medical literature reviews. The aim of this study was to identify all published cases of PTC and FTC muscle metastases and derive the true incidence of this malignancy. The probability of detecting the skeletal muscle metastasis of PTC and FTC was calculated based on epidemiological data. Databases of scientific literature on the Internet were searched for articles using relevant key words. The analysis of epidemiological data calculated the probability of detecting skeletal muscle lesions of this type as approximately zero. The literature search revealed 44 published international papers, reporting 58 cases of PTC or FTC skeletal muscle metastasis in 45 patients over 110 years, from 1907 to 2017. The most frequent PTC/FTC metastatic muscle was the gluteus. The majority of cases of muscle metastasis were caused by PTC, and metastatic tumors in the skeletal muscle negatively impacted the survival of patients with PTC or FTC.

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Section: Resultsmentioning

confidence: 99%

Skeletal muscle metastases from papillary and follicular thyroid carcinomas: An extensive review of the literature

Herbowski¹

2018

Oncol Lett

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“…This proportion is only 4-15% in the case of differentiated thyroid cancers (7,8). Common sites of metastasis include the lungs and bones (8)(9)(10)(11), while soft tissue metastasis is reportedly extremely rare (12)(13)(14). Although distant metastasis in patients with thyroid cancer is not as grave as that in other cancers, it significantly affects survival; therefore, a thorough work-up including 18 F-FDG PET/CT is required (9,15,16).…”

Section: Discussionmentioning

confidence: 99%

Diagnostic clue of nodular fasciitis mimicking metastasis in papillary thyroid cancer, mismatching findings on 18F-FDG PET/CT and 123I whole body scan: A case report

Seo

Kim

et al. 2017

Oncology Letters

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Abstract. This study reports a case of nodular fasciitis incidentally detected in a patient with papillary thyroid cancer. A 47-year-old woman underwent a total thyroidectomy and radioactive iodine therapy for papillary thyroid cancer. On a follow-up fluorodeoxyglucose ( 18 F-FDG) PET/computed tomography (CT) scan after 12 months, a focal 18 F-FDG-avid lesion was incidentally detected in the paraspinal muscle. It was well-enhanced on CT and magnetic resonance imaging, indicating metastasis. However, the lesion was not iodine avid on the 123 I whole body scan, which favored benign etiology over metastasis from thyroid cancer. For pathological confirmation, surgical excision was performed and the paraspinal lesion was finally confirmed as nodular fasciitis. Therefore, it was suggested that nodular fasciitis may be included in the differential diagnosis of a 18 F-FDG avid/iodine non-avid soft tissue lesion in patients with thyroid cancer. In such circumstances, 123I whole body scans may serve a role in non-invasive work-up, and prevent unnecessary surgical procedures.

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“…[7] There are reports of PET/CT in identifying muscle and scalp metastasis from a papillary thyroid cancer. [89] This is the first case of identifying primary papillary cancer with subcutaneous metastasis in PET/CT. Recognizing and understanding the clinical findings may determine the overall management of the patients.…”

Section: Discussionmentioning

confidence: 99%

Fluorine-18 fluorodeoxyglucose positron emission tomography/computed tomography imaging of an isolated subcutaneous loin metastasis from primary papillary carcinoma of the thyroid

et al. 2014

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Differentiated thyroid cancer frequently metastasizes but generally spreads to regional cervical lymph nodes and, in advanced cases, to the lungs and/or skeleton. Metastases to the skin/subcutaneous tissue are rare. We report 45-year-old male patient presented with a loin swelling which on biopsy showed a papillary carcinoma and referred for fluorodeoxyglucose-positron emission tomography/computed tomography (FDG PET/CT) to find out the primary disease. PET/CT showed abnormal FDG uptake within a loin metastasis and right lobe thyroid nodule. Fine-needle aspiration from nodule showed papillary carcinoma. Because thyroid cancer can rarely metastasize to the skin, attention should be given to that region during interpretation of the images. He was advised total thyroidectomy and metastasis excision.

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Soft tissue metastases from differentiated thyroid cancer diagnosed by 18F FDG PET-CT

Cited by 9 publications

References 16 publications

Skeletal muscle metastases from papillary and follicular thyroid carcinomas: An extensive review of the literature

Skeletal muscle metastases from papillary and follicular thyroid carcinomas: An extensive review of the literature

Diagnostic clue of nodular fasciitis mimicking metastasis in papillary thyroid cancer, mismatching findings on 18F-FDG PET/CT and 123I whole body scan: A case report

Fluorine-18 fluorodeoxyglucose positron emission tomography/computed tomography imaging of an isolated subcutaneous loin metastasis from primary papillary carcinoma of the thyroid

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