Salivary Duct Carcinoma

Comments:
Salivary duct carcinoma showing solid and cribriform growth patterns. The tumor lobules are separated by fibrotic stroma.

In addition to many growth patterns seen with salivary duct carcinoma, there are a number of histologic variants, including sarcomatoid, micropapillary, mucin rich, oncocytic, osteoclast like giant cell, and high grade in-situ variant. Hybrid tumors with multiple histologic types within a given tumor are not uncommon.