Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1997-6-5
pubmed:abstractText
We present the unusual case of a 29-year-old man diagnosed in 1975 with papillary carcinoma of the thyroid metastatic to regional lymph nodes. The patient underwent surgical resection, postoperative iodine-131 (131I) radioablation and levothyroxine suppression. He was subsequently lost to follow-up. In 1991, he presented with extensive metastatic disease that was not demonstrable on whole-body 131I imaging, but was seen on computerized tomography and whole-body thallium chloride scanning. The patient was treated with cisplatin (Platinol) and doxorubicin (Adriamycin). Repeat 131I imaging after three cycles of chemotherapy showed significant 131I uptake in previously non-iodine-concentrating lesions. The patient was subsequently treated with 200 mCi 131I. We postulate this patient's non-iodine-concentrating thyroid cancer may have become functional by either a differentiating effect of chemotherapy on the tumor cells, or perhaps a selective cytotoxicity against nonfunctional, less differentiated papillary thyroid cancer cells, or both. This would allow more functional differentiated cells to overgrow and become the predominant cell type in the lesions. Chemotherapy may be beneficial in patients with advanced non-iodine-concentrating differentiated thyroid carcinoma by inducing radioiodine uptake and allowing subsequent radioiodine therapy. The possible mechanisms of induction of iodine uptake by chemotherapy are discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
1050-7256
pubmed:author
pubmed:issnType
Print
pubmed:volume
7
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
63-6
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Conversion of non-iodine-concentrating differentiated thyroid carcinoma metastases into iodine-concentrating foci after anticancer chemotherapy.
pubmed:affiliation
Derald H. Ruttenberg Cancer Center, New York, New York, USA.
pubmed:publicationType
Journal Article, Case Reports