TY - JOUR
T1 - Bone metastases and skeletal-related events in medullary thyroid carcinoma
AU - Xu, Jian Yu
AU - Murphy, William A.
AU - Milton, Denái R.
AU - Jimenez, Camilo
AU - Rao, Sarika N.
AU - Habra, Mouhammed Amir
AU - Waguespack, Steven G.
AU - Dadu, Ramona
AU - Gagel, Robert F
AU - Ying, Anita K.
AU - Cabanillas, Maria E.
AU - Weitzman, Steven P.
AU - Busaidy, Naifa L.
AU - Sellin, Rena V.
AU - Grubbs, Elizabeth
AU - Sherman, Steven I.
AU - Hu, Mimi I.
N1 - Publisher Copyright:
© 2016 by the Endocrine Society.
PY - 2016/12
Y1 - 2016/12
N2 - Context: Bone metastases (BM) can lead to devastating skeletal-related events (SREs) in cancer patients. Data regarding medullary thyroid carcinoma (MTC) with BM are lacking. Objective: We evaluated the natural history of BM and SREs in MTC patients identified by a cancer center tumor registry. Setting: The study was conducted at a tertiary cancer center. Patients and Main Outcome Measures: We retrospectively reviewed the charts of MTC patients with BM who received care from 1991 to 2014 to characterize BM and SREs. Results: Of 1008 MTC patients treated, 188 were confirmed to have BM (19%), of whom 89% (168 of 188) had nonosseous distant metastases. Median time from MTC to BM diagnosis was 30.9 months (range 0-533 mo); 25% (45 of 180) had BM identified within 3 months of MTC diagnosis. Median follow-up after detecting BM was 1.6 years (range 0-23.2 y). Most patients (77%) had six or more BM lesions, most often affecting the spine (92%) and pelvis (69%). Many patients (90 of 188, 48%) experienced one or more SREs, most commonly radiotherapy (67 of 90, 74%) followed by pathological fracture (21 of 90, 23%). Only three patients had spinal cord compression. Patients with more than 10 BM lesions were more likely to experience SREs (odds ratio 2.4; P = .007), with no difference in 5-year mortality after MTC diagnosis between patients with (31%) and without SREs (23%) ( P= .11). Conclusions: In this large retrospective series, BM in MTC was multifocal, primarily involving the spine and pelvis, supporting screening these regions for metastases in at-risk patients. SREs were common but spinal cord compression was rare. Antiresorptive therapies in this population should be investigated further with prospective trials.
AB - Context: Bone metastases (BM) can lead to devastating skeletal-related events (SREs) in cancer patients. Data regarding medullary thyroid carcinoma (MTC) with BM are lacking. Objective: We evaluated the natural history of BM and SREs in MTC patients identified by a cancer center tumor registry. Setting: The study was conducted at a tertiary cancer center. Patients and Main Outcome Measures: We retrospectively reviewed the charts of MTC patients with BM who received care from 1991 to 2014 to characterize BM and SREs. Results: Of 1008 MTC patients treated, 188 were confirmed to have BM (19%), of whom 89% (168 of 188) had nonosseous distant metastases. Median time from MTC to BM diagnosis was 30.9 months (range 0-533 mo); 25% (45 of 180) had BM identified within 3 months of MTC diagnosis. Median follow-up after detecting BM was 1.6 years (range 0-23.2 y). Most patients (77%) had six or more BM lesions, most often affecting the spine (92%) and pelvis (69%). Many patients (90 of 188, 48%) experienced one or more SREs, most commonly radiotherapy (67 of 90, 74%) followed by pathological fracture (21 of 90, 23%). Only three patients had spinal cord compression. Patients with more than 10 BM lesions were more likely to experience SREs (odds ratio 2.4; P = .007), with no difference in 5-year mortality after MTC diagnosis between patients with (31%) and without SREs (23%) ( P= .11). Conclusions: In this large retrospective series, BM in MTC was multifocal, primarily involving the spine and pelvis, supporting screening these regions for metastases in at-risk patients. SREs were common but spinal cord compression was rare. Antiresorptive therapies in this population should be investigated further with prospective trials.
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U2 - 10.1210/jc.2016-2815
DO - 10.1210/jc.2016-2815
M3 - Article
C2 - 27662441
AN - SCOPUS:85003712706
SN - 0021-972X
VL - 101
SP - 4871
EP - 4877
JO - Journal of Clinical Endocrinology and Metabolism
JF - Journal of Clinical Endocrinology and Metabolism
IS - 12
ER -