Differential Diagnosis for Unilateral Sudden Hand Edema and Hot to Touch
- Single Most Likely Diagnosis
- Deep Vein Thrombosis (DVT): This is a likely diagnosis given the symptoms of unilateral sudden hand edema and the hand being hot to touch. DVT typically presents with swelling, warmth, and discoloration of the affected limb.
- Other Likely Diagnoses
- Cellulitis: A bacterial infection of the skin and subcutaneous tissue that can cause swelling, redness, and warmth.
- Superficial Thrombophlebitis: Inflammation of a superficial vein, which can cause swelling, warmth, and pain.
- Insect Bite or Sting: Certain insect bites or stings can cause localized swelling, redness, and warmth.
- Do Not Miss Diagnoses
- Septic Thrombophlebitis: A bacterial infection of a vein, which can be life-threatening if not treated promptly.
- Necrotizing Fasciitis: A severe bacterial infection of the skin and subcutaneous tissue that can cause rapid progression of symptoms and is potentially fatal.
- Compartment Syndrome: Increased pressure within a muscle compartment that can cause nerve and muscle damage, and is a medical emergency.
- Rare Diagnoses
- Erythromelalgia: A rare disorder that causes burning pain, heat, and redness in the hands and feet.
- Complex Regional Pain Syndrome (CRPS): A chronic pain condition that can cause swelling, redness, and warmth in the affected limb.
Regarding the question of whether DVT is an emergency, yes, it is considered a medical emergency if it is suspected to have broken loose and is traveling to the lungs (pulmonary embolism), which can be life-threatening. However, if the DVT is isolated to the arm, it is still a serious condition that requires prompt medical attention to prevent complications, but it may not be immediately life-threatening.