ABSTRACT

Introduction 328

Thyroid gland 328

Fine needle aspiration cytology 330

Developmental conditions 333

Acquired conditions 333

Tumours of follicular epithelium 338

Tumours showing C-cell differentiation 348

Other neoplasms and tumour-like lesions 351

Intraoperative frozen section examination 352

Thyroid cancer staging 353

Parathyroid glands 353

Key evidence 364

Key learning points 364

References 364

Send a slide to five different pathologists and receive six different answers.