Repository for Paraffin Embedded Tissues from Patients with Recurrent or Metastatic Squamous Cell Carcinoma of the Head and Neck (SCCHN).

Registration to treatment protocols including: S9708, 9902, S0007 and E1395: adequate diagnostic tissue from the representative area of the primary tumor is required; if representative area of the primary tumor is not available, a sample from the metastatic site may be submitted; if metastases are present, paraffin-embedded whole lymph node is required.