Because most pharyngeal tumors extend past the midline, bilateral cervical metastases are common.

The tumor may extend into the eyes, sinuses, and the front part of the brain.

Together they have revolutionized the surgical approach for large renal tumors, particularly those in which the tumor extends into the vena cava.

The tumour may extend beyond the testis.

Maxillary lesions frequently enter the sinuses while mandibular tumors often extend into the ramus.

About one-third of patients develop a small-bowel obstruction, when a tumor extends through the diaphragm.

Without surgical extirpation, the tumor may extend into distant organs.

In nasopharyngeal carcinoma, the tumor may extend laterally and involve this sinus involving the Mandibular nerve.

The tumor extends beyond the kidney as evidenced by any one of the following criteria:

Though the tumors extend deeply into the muscle tissue, joints, and tendons, the tumors did not invade these structures.