Benign, Malignant or Something in Between: A Rapidly Developing Atypical Parathyroid Adenoma

THYROID FOLLICULAR ADENOMA: BENIGN OR MALIGNANT?

Four patients are described in whom a follicular carcinoma developed following thyroidectomy for a benign follicular neoplasm. It is possible that the initial thyroid neoplasm was a well- differentiated follicular carcinoma which was microscopically indistinguishable from a benign adenoma. Realizing this pathologic pitfall in thyroid diagnosis, the need for meticulous examination of the pa...

Endometriosis: benign, malignant, or something in between?

Parathyroid carcinoma, atypical parathyroid adenoma, or parathyromatosis?

BACKGROUND Parathyroid carcinoma, atypical parathyroid adenoma, and parathyromatosis can be differentiated relatively easily from typical parathyroid adenomas, but distinguishing them from each other is more difficult. METHODS A retrospective study of 28 consecutive patients with parathyroid carcinoma, 7 patients with atypical parathyroid adenoma, and 13 patients with parathyromatosis who wer...

Association between atypical parathyroid adenoma and neurofibromatosis.

Primary hyperparathyroidism is a disease characterized by excessive production of parathyroid hormone (PTH), which is due to a parathyroid adenoma in 85% of cases. An atypical parathyroid adenoma, with some histopathological features of parathyroid carcinoma, may be found in some of the cases, although it may not fulfill all the criteria for this diagnosis. Neurofibromatosis type 1 (NF1) is an ...

thyroid follicular adenoma: benign or malignant?

four patients are described in whom a follicular carcinoma developed following thyroidectomy for a benign follicular neoplasm. it is possible that the initial thyroid neoplasm was a well- differentiated follicular carcinoma which was microscopically indistinguishable from a benign adenoma. realizing this pathologic pitfall in thyroid diagnosis, the need for meticulous examination of the patholo...