Classification of Pituitary Adenomas and Thyroid Carcinomas

Pituitary Adenomas

Pituitary adenomas may be classified as follows:

ACTH cell (corticotroph) adenoma

GH cell (somatotroph) adenoma

Prolactin cell (lactotroph) adenoma

Mammosomatotroph adenoma

TSH cell (thyrotroph) adenoma

Gonadotroph, ‘null cell’, oncocytic adenoma

Carcinomas of Thyroid

Carcinomas of thyroid may be classified as follows:

Papillary carcinoma

Follicular carcinoma

Medullary carcinoma

Anaplastic carcinoma

Image: papillary carcinoma of thyroid, courtesy of Ed Uthman, MD