[Pulmonary tumorlet associated with second neoplasia].

Tumorlets are pulmonary neuroendocrine tumors smaller than 0.5 cm. They are benign and usually asymptomatic.

False positive in the measurement of thyroglobulin induced by rheumatoid factor.

Background: We report a case of interference in thyroglobulin (Tg) measurement in a woman with differentiated thyroid cancer and rheumatoid arthritis history. Due to discordant Tg in relation to TSH concentrations and negative images, we investigated possible interference in the measurement of Tg.

Methods: During the follow-up we measured Tg by chemiluminescence (TgQL) using Immulite 2000 immunoassay system.

An international survey of screening and management of hypothyroidism during pregnancy in Latin America.

Objective: To determine how endocrinologists in Latin America deal with clinical case scenarios related to hypothyroidism and pregnancy.

Materials And Methods: In January 2013, we sent an electronic questionnaire on current practice relating to management of hypothyroidism in pregnancy to 856 members of the Latin American Thyroid Society (LATS) who manage pregnant patients with thyroid disease. Subsequently, we have analyzed responses from physician members.

Adequate levothyroxine doses for the treatment of hypothyroidism newly discovered during pregnancy.

Background: Recent guidelines recommend thyrotropin (TSH) target levels of ≤2.5 mIU/L for the first trimester and ≤3 mIU/L for the subsequent trimesters. Euthyroidism should be attained as soon as possible, but there are no precise indications about the initial levothyrorine (LT4) dose.

Management of thyroid dysfunction during pregnancy and postpartum: an Endocrine Society clinical practice guideline.

Objective: The aim was to update the guidelines for the management of thyroid dysfunction during pregnancy and postpartum published previously in 2007. A summary of changes between the 2007 and 2012 version is identified in the Supplemental Data (published on The Endocrine Society's Journals Online web site at http://jcem.endojournals.