A case report of subacute thyroiditis during pregnancy: difficulties in differential diagnosis and changes in cytokine levels.
BACKGROUND
Thyroid dysfunction during pregnancy may result in both maternal and neonatal complications. Subacute thyroiditis (SAT) is an extremely rare cause of both hyper- and hypothyroidism in pregnant women.


METHODS
A case of first trimester SAT is presented. Diagnosis of SAT was based on fine-needle aspiration biopsy. The disease resolved spontaneously without need for prednisone administration but a hypothyroid phase treated with T4 throughout pregnancy occurred. The pregnancy resulted in a healthy full term infant. We measured various cytokine levels in an attempt to follow their course during SAT as well as throughout the remaining period of pregnancy. Serum thyreoglobulin (Tg) levels correlated best with thyroid function tests (TFTs) and the course of SAT.


CONCLUSIONS
The diagnosis of SAT at a pregnancy setting may be intriguing. The measurement of circulating cytokines is not helpful in the differential diagnosis or monitoring of the disease.
Department of Endocrinology, 424 Military Hospital, Thessaloniki, Greece. anastath@endo.gr
Athanasios D
AD
Anastasilakis
Vassiliki
V
Karanicola
Anargyros
A
Kourtis
Polyzois
P
Makras
Lampros
L
Kampas
Spyridon
S
Gerou
Athina
A
Giomisi
D000328:Adult; D016207:Cytokines / Q000032:analysis / Q000097:blood*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000097:blood / Q000175:diagnosis*; D011261:Pregnancy Trimester, First; D013960:Thyroid Function Tests; D013968:Thyroiditis, Subacute / Q000097:blood / Q000175:diagnosis*
D016207:Cytokines