Anaplastic carcinoma is more common in women older than 50.

Anaplastic carcinoma.

Anaplastic carcinoma with gross extrathyroid extension.

Undifferentiated or anaplastic carcinoma.

Intrathyroidal anaplastic carcinoma.

Malignant mammary tumors are divided into sarcomas, carcinosarcomas, inflammatory carcinomas (usually anaplastic carcinomas), and carcinomas (including adenocarcinomas), which are the most common.

The presence of regional lymphadenopathy in older patients in whom needle aspiration biopsy reveals characteristic vesicular appearance of the nuclei would support a diagnosis of anaplastic carcinoma.

Dysmenorrhea and abdominal pain were the most common presenting symptoms; 79% of the patients had stage I disease with a 100% survival rate, and only those who had small cell anaplastic carcinoma died.

Aldinger KA, Samaan NA, Ibanez M, et al.: Anaplastic carcinoma of the thyroid: a review of 84 cases of spindle and giant cell carcinoma of the thyroid.

On June 24, 1970, Lombardi was admitted to Georgetown University Hospital, and tests "revealed anaplastic carcinoma in the rectal area of his colon, a fast-growing malignant cancer in which the cells barely resemble their normal appearance."