Pheochromocytoma of the urinary bladder: a rare cause of severe hypertension.

Paraganglioma of the urinary bladder is a rare entity, and accounts for less than 0.5% of all bladder tumors. In the genitourinary tract, the urinary bladder is the most common site for paragangliomas.

Primary angiosarcoma of the breast in a postmenopausal patient.

Primary angiosarcoma of the breast is a rare entity forming 0.04% of primary breast tumors. It is a highly aggressive tumor with a high propensity for locoregional and distant metastasis.