Open AccessUnusual sites of metastatic and benign I 131 uptake in patients with differentiated thyroid carcinoma
Author(s) -
Shanmuga Sundaram Palaniswamy,
Padma Subramanyam
Publication year - 2018
Publication title -
indian journal of endocrinology and metabolism
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.456
H-Index - 28
eISSN - 2230-9500
pISSN - 2230-8210
DOI - 10.4103/ijem.ijem_70_18
Subject(s) - medicine , thyroid carcinoma , thyroid , thyroid cancer , metastasis , thyroglobulin , radiology , pathology , cancer
Differentiated thyroid carcinoma (DTC) is the most common pathological type of thyroid carcinoma, which includes papillary and follicular subtypes. DTC is usually indolent, characterized by good prognosis, and long-term survival. Total thyroidectomy is the mainstay of treatment in DTC which is followed by diagnostic whole body 131I (WBI) scan. Like other primary malignancies of the head and neck, DTC follows a consistent pattern of spread in the cervical LNs. The central compartment, level VI and VII, is the first sentinel node followed by spread to the lateral compartments levels II-V, followed by the contralateral side. Inspite of nodal involvement, DTC usually have a favourable outcome. Presence of extrapulmonary distant metastases could predict a poor prognosis for high-dose 131 I therapy. However, distant metastasis occurs often as a grave event and mortality rates vary depending on metastatic sites.