Ask an Expert

Any physician may submit a question regarding a thyroid patient to ldegroot@earthlink.net and one of our panel of expert thyroidologists will attempt to provide an answer as soon as possible by return Email. Physicians should provide adequate clinical information about the problem, and provide their name, office address, and telephone number. We will send an answer by Email to the address provided, and will publish the question and the response on this page. The name of the questioning physician WILL be published unless specific instruction not to do so is provided in the original Email. This service is available only to physicians.

Please note that Thyroidologists who hold opinions that differ from the advice we have offered are welcome to send in responses, and we will publish these comments. Commentators should kindly include name, office address, and Email address.

We attempt to answer important questions from readers, if time permits, and publish those of value to other readers in this column. Please send questions to Dr John Lazarus lazarus@cardiff.ac.uk

To read questions from patients click here.

Questions from Doctors

  1. REQUIRED TREATMENT OF HYPERTHYROIDISM BEFORE SURGERY
  2. Possible Thyroid Hormone Resistance
  3. Diffuse Lung Micro-mets with Residual Neck Nodes in Place
  4. Amiodarone Induced Thyrotoxicosis
  5. Prolonged TSH Suppression After Antithyroid Therapy of Graves
  6. Hypothyroidism and Ascites
  7. Oral T4 Causing a Rash?
  8. Lower Limit of TSH for Replacement T4 Treatment in Pregancy
  9. 131-I Treatment and Risk to Later Pregnancy
  10. Invasive Papillary Thyroid Cancer in a 71 Yr Old
  11. Graves’ Disease in Pregancy and Atd Allergy, Possible Treatment?
  12. Hyperthyroidism and Increasing LFT Abnormalities, What Therapy?
  13. Graves, Exophthalmos, Mediastinal Mass, Heart Disease?
  14. Need for Iodine Supplementation During Pregnancy
  15. Possible T4 Malabsorption and Abdominal Disease
  16. Possible Euthyroid Graves’ Disease
  17. Follicular Neoplasm in a 19yr Old Female
  18. Therapy of Probable (?) Sporadic MTC
  19. Iodine Deficiency and Hypothyroidism in Early Pregnancy
  20. Ovarian Mass and Hyperthyroidism
  21. Fna “Positive” Contralateral Node Following Hemithyroidectomy
  22. rhTSH vs Hormone Withdrawal in RAI Therapy
  23. Pet-scan Positive Mediastinal ? Met After RAI and Prior Nediastinal Operation
  24. Pregnant (Post RAI on T4) Woman with Elevated TSAb
  25. Repeated Miscarriages in a Young Woman with Hashimoto’s Thyroiditis and Antibodies
  26. Residual Papillary Cancer: RAI vs Surgery??
  27. Hurthle Cells in an FNA of a Hashimoto’s Gland
  28. Prior Radiation to Bone and Use of Teriparatide
  29. Treatment of 2.3cm Unifocal Follicular Variant of Papillary Cancer
  30. Possible Thyroid Hormone Resistance
  31. Intermittent Hyperthyroidism and Hypothyroidism
  32. Interferon Therapy and Hyperthyroidism
  33. RAI Ablation in Stage 1 Papillary Thyroid Cancer?
  34. Thyroid Cancer with High TG Response to TSH but Negative Scan
  35. Hot Nodule and Sub-clinical Hyperthyroidism
  36. Gestational Hypertyroidism?
  37. A Case of Galactorrhea
  38. RAI Treatment with Extensive Lung Metastases
  39. Therapy of Advance Follicular Thyroid Cancer
  40. Neonatal Goiter with Normal TFTs
  41. Multiple Drugs for Schizophrenia, and Low T4 and T3 Levels
  42. Tracheal Invasion in Papillary Thyroid Carcinoma
  43. Possible Effects of Amiodarone
  44. Treatment for Progressive Hurthle Cell Thyroid Carcinoma
  45. Primary Hypothyroidism and Worsening Exophthalmos
  46. Thyroid CA, Invasion, Positive Nodes, and TG Antibodies
  47. Radiation and Possible Thyroid Malignancy
  48. Thyroid Hormone Resistance Vs. TSH-oma
  49. Thyrotoxicosis with Low RAIU
  50. Hypergonadotropic Hypogonadism and Congenital Rubella
  51. Use PTU After MMI Induced LFT Abnormalities?
  52. Low T4 and T3 but Normal TSH
  53. Follow-up of an Incidentally Found Papillary CA
  54. Struma Ovarii with Malignancy
  55. Mild Hyperthyroidism, Questionable Cause
  56. Thyroiditis, Hypothyroidism, Pregnancy
  57. Papillary CA, AITD, Neg Ab, Pos TG
  58. Twin Pregnancy, Low TSH, Normal T4 and T3
  59. Hyperthyroidism, Low Uptake, Negative Ab
  60. Microcarcinoma in Teenager with Dyshormonogenesis
  61. Hot Nodule with Indeterminate Histology
  62. Management of a Mediastinal Mass
  63. Normal T4 Ranges in Pregnancy
  64. RAI Treatment While Pregnant
  65. Thyroiditis, or GRTH?
  66. Thyroxin Dose After Thyroidectomy for Papillary Cancer
  67. Iodine Supplements in Hashimoto’s Thyroiditis
  68. Subclinical Hyperthyroidism and Conception
  69. Thyroid Tissue in a Lateral Mass, with Thyroiditis; is It Cancer?
  70. Hyperthyroidism in the Truly Elderly
  71. Thyroxin Absorption Test
  72. Invasive Papillary Cancer and Enlarged Node
  73. Graves Disease and Incidental Thyroid Cancer
  74. Hyperthyroidism and Amenorrhea
  75. Borderline Elevated T3/Subclinical Hyperthyroidism?
  76. Thyroid Hormone Resistance?
  77. Aggressive MTC with Post-op Elevated CT and CEA
  78. Infant with Genetic Problem and Hypothyroidism
  79. A Child with Non-Autoimmune Hyperthyroidism
  80. Hurthle Cell Tumor, Mico-CA, Post-Lobectomy
  81. Cholestasis from MMI
  82. Neonate with Possible Hypothyroidism
  83. Adiation and Breast Feeding
  84. Rai Treatment After Lugol’s Iodine
  85. Thyroid Patient with Asthma, Allergy to Carbimazole, Allery to Ptu?
  86. Preparation for Treatment of a Toxic Adenoma
  87. Possible Resistance to Thyroid Hormone
  88. Minimally Invasive Follicular Carcinoma
  89. Positive I-131 Scan Post Therapeutic I-131
  90. Nodules After RAI Therapy of TMNG
  91. Diagnosis and Treatment of NTIS
  92. Carbimazole Treatment and Hair Loss
  93. Abnormal Thyroid Tests in Pregnancy
  94. Hashimoto’s, Urticaria, and Stomach Pains
  95. Hurthle Cell Carcinoma, Residual Disease Post-op
  96. Chroic Urticaria, Thyroxine Treatment, Thyroid Cancer
  97. Thyroid Hormone Resistance Vs. TSH-oma?
  98. Elevated Hormone Levels, Congenital Hypothyroidism, Psychiatric Problem
  99. Surgery with Adrenal Mass; “Incidental” Medullary Carcinoma
  100. Normal Thyroid Tests Except for Elevated RT3
  101. Congenital Thyroid Deficiency, No Raiu, and Thyroid Cancer
  102. Liver Failure and Severe Thyrotoxicosis
  103. Hypothyroisim, Renal Insufficiency, and RAI Therapy
  104. Thyrotoxicosis and Pregnancy
  105. Thyrotoxic Hypokalemic Paralysis and 131-I Therapy
  106. Thyroid Cyst, and Mild Hyperthyroidism, in Pregnancy
  107. “Subclinical Hypothyroidism” with Normal freeT4 and TSH
  108. Onset Long After
  109. Thyrotoxicosis, Ventricular Fibrillation, Hypokalemia
  110. “Incidental” Medullary Carcinoma
  111. Growing Hot Nodule
  112. Malabsorption of Thyroxine?
  113. Neonate with Large Goiter
  114. Central Hypothyroidism?
  115. Thyroid Hormone and TSH Levels During Pregnancy
  116. Positive Antibodies, and Growing Nodules
  117. Thyroxine Dosage and Surgery, or After 131-I Treatment
  118. 131-I Treatment in Renal Failure
  119. Thyroiditis: Relation to Sertraline, and Lack of Melanin
  120. Atypical Graves’ Disease
  121. Therapy of a Patient with a Solitary Vertebral Metastasis
  122. Amiodarone and Recurrent Graves’ disease
  123. Nodules, Positive Antibodies, and Treatment?
  124. Sublinical Hyperthyroidism and Substernal Goiter
  125. Thyroid Carcinoma Diagnosed by Bronchoscopy
  126. T4 Suppression Therapy Post Radiation Exposure
  127. Follow-up in Differentiated Thyroid Cancers Under 1cm
  128. Hurthle Cell Nodule and Hyperthyroidism in Hashimoto’s Gland
  129. Hives, Angioedema, and Hashimoto’s Thyroiditis
  130. Hyperthyroidism in Pregnancy
  131. Add Recombinant TSH to Endogenous TSH for Ablation?
  132. Hyperthyroidism in Pregnancy; Cause and Treatment?
  133. Amiodarone Induced Thyrotoxicosis
  134. What Condition Does This Person Suffer From?
  135. What to Do with an Incidental 1mm Papillary Cancer?
  136. Therapy of Thyroid Cancer with Known Positive Neck Nodes, Elevated TG, and Negative Scan?
  137. Is This Graves’ Disease?
  138. Hashimoto’s, Transient Hypothyroidism, and an Elevated RAIU
  139. When is a Pentagastrin Test Advised in Following MTC?
  140. How Long to Wait After Operation Before RAI Ablation?
  141. Do We Really Need to Do Both fT4 and TSH in Evaluating Patients?
  142. How to Manage Fetal Hypothyroidism and Goiter
  143. How to Manage Existing Hypothyroidism Perioperatively in a Patient NPO?
  144. How to Treat Sub-clinical Hypothyroidism?
  145. Patient Seeks Counseling About the Possibility of Future Thyroid Exacerbations
  146. “Hashimoto’s Encephalitis”?
  147. Primary Vs Secondary Hypothyroidism, and Financial Problems
  148. Infant with Chylothorax and Apparent Hypothyroidism
  149. Managing Hashimoto’s in Pregnancy
  150. Does This Person Have Thyroid Hormone Resistance?
  151. Thyroid Hormone Treatment and Uric Acid Level
  152. Thyroxine Requirement During Pregnancy

Questions from Patients

  1. Radioactivity and Thyroid Cancer
  2. Steroids in Graves’ Eye Disease
  3. Thyroid Replacement Therapy
  4. Lump in the Neck
  5. Hashimoto
  6. Cancer and Radioiodine Therapy
  7. Hypothyroidism and Pregnancy
  8. 2008 Patient Questions
  9. Topical Patient Questions 2008
  10. 2007 Patient Questions
  11. Thyroid Cyst, What to Do?
  12. Adverse Effect of Iodine Treatment of Drinking Water