The main stem of the Bay itself is about 189 miles (304 km) long, from the Susquehanna River in the north to the Atlantic Ocean in the south. At its narrowest point near Annapolis, Maryland, the Bay is 4 miles (6.4 km) wide; at its widest point, near the mouth of the Potomac River, it is 30 miles (50 km) wide.
Patau syndrome. Patau syndrome is a syndrome caused by a chromosomal abnormality, in which some or all of the cells of the body contain extra genetic material from chromosome 13. The extra genetic material disrupts normal development, causing multiple and complex organ defects.
In these patients, post-operative inflammation promotes the leakage of fluid from tiny blood vessels in the macula. Other common causes of CME include diabetic retinopathy, wet age-related macular degeneration, uveitis, and retinal vascular disease. CME can also occur due to mechanical traction from a macular pucker. Less common causes include past exposure to radiation, retinitis pigmentosa, and intraocular tumors.