Thyroglossal Tract Cyst

Epidemiology and Etiology:

·

Common sites:

·

Gross features:

· 1-4cm diameter cyst

Histologic features:

· Stratified squamous

· Pseudostratified columnar

· Lymphoid aggregates in wall maybe

· Thyroid follicles

Immunophenotype:

Marker:

Sensitivity:

Specificity:

Molecular features:

·

Other features:

· Malignant transformation is rare

References:

· Kumar V, Fausto N, Abbas A. Robbins & Cotran Pathologic Basis of Disease, Seventh Edition. 7th ed. Saunders; 2004.