Image Atlas ...

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The thyroid web atlas contains 300 images of key thyroid lesions in an easy-to-search format. All images have been independently reviewed and approved by the committee members. Although the majority of the images presented here are from direct smears of an FNA sample, there are numerous examples of liquid-based preparations as well, illustrating the key morphologic differences. Emphasis has been placed on presenting "classic' examples of common thyroid lesions, but images from uncommon and rare diseases are included as well to make this as comprehensive as possible.

The images are formatted to conform to the "The Bethesda System for Reporting Thyroid Cytopathology", a monograph being published separately.

The images are tagged with the keyword (entity name) and are also searchable by chapter index and preparation type (direct-smear versus liquid-based).

• Normal Cytologic Constituents
• Insufficient for Diagnosis
  • Cyst Fluid Only
  • Obscuring/compromising Factors (blood, inflammation, poor smear fixation/staining)
• Benign Cellular Changes
  • Benign Follicular Nodule
  • Acute Thyroiditis
  • Chronic Lymphocytic Thyroiditis
  • Subacute Thyroiditis
  • Riedel's Thyroiditis
  • Graves' Disease
  • Other Cystic Lesions (Thyroglossal Duct Cyst, Developmental Cysts, Parathyroid Cysts)
• Atypical Cells Of Undetermined Origin (ACUS)
• Suspicious For A Follicular Neoplasm
• Suspicious For A Hurthle Cell Neoplasm
• Suspicious For Malignancy
  • Suspicious For Papillary Thyroid Carcinoma
  • Suspicious For Medullary Thyroid Carcinoma
  • Suspicious For Undifferentiated (Anaplastic) Carcinoma
• Papillary Thyroid Carcinoma And Variants
  • Classic Variant
  • Follicular Variant
  • Oncocytic Variant
  • Tall Cell Variant
  • Columnar Cell Variant
  • Diffuse Sclerosing Variant
  • Warthin's-Like Variant
  • Hyalinizing Trabecular Tumor
• Medullary Thyroid Carcinoma
  • Classic Variant
  • Other Variants (Oncocytic, Giant cell, Spindled, Small Cell)
• Poorly Differentiated Carcinoma
  • Not Otherwise Specified
  • Insular Carcinoma
• Undifferentiated (Anaplastic) Carcinoma
• Metastatic Tumors And Lymphomas
  • Metastatic Carcinomas
  • Metastatic Melanoma, Sarcoma And Other Tumors
  • Lymphoproliferative Disorders