Differential Diagnosis for Pain in Right Wrist after Falling

Single Most Likely Diagnosis

• Wrist Sprain: This is the most common injury from a fall onto an outstretched hand, which can cause stretching or tearing of the ligaments surrounding the wrist joint.

Other Likely Diagnoses

• Wrist Fracture: A fracture, especially of the distal radius (Colles' fracture), is a common consequence of falling onto an outstretched hand. The pain and swelling can mimic a sprain but require different management.
• Scaphoid Fracture: A specific type of wrist fracture involving the scaphoid bone, which is known for its poor blood supply and potential for complications if not properly diagnosed and treated.

Do Not Miss Diagnoses

• Compartment Syndrome: Although less common, compartment syndrome is a serious condition that can occur after a fracture or severe sprain. It involves increased pressure within the muscle compartments, which can lead to nerve and muscle damage if not promptly treated.
• Vascular Injury: Damage to the blood vessels in the wrist can occur from a severe injury and may lead to ischemia or other complications if not identified and managed appropriately.

Rare Diagnoses

• Ganglion Cyst Rupture: While ganglion cysts are common, a rupture caused by a fall is less common. It could present with sudden onset of pain and swelling.
• Osteochondral Defect: A fall could potentially cause an osteochondral defect, where a piece of cartilage and bone in the joint is damaged, though this is less likely than other diagnoses listed here.