Differential Diagnosis for Probable Thrombosed Pseudoaneurysm, Right Radial Artery
- Single most likely diagnosis
- Thrombosed pseudoaneurysm of the radial artery: This is the most likely diagnosis given the presentation, as it directly matches the description provided. A pseudoaneurysm is a leakage of arterial blood from an artery into the surrounding tissue with a persistent communication between the originating artery and the resultant adjacent cavity. Thrombosis within this pseudoaneurysm could lead to its presentation as a palpable mass.
- Other Likely diagnoses
- Hematoma: A collection of blood outside of blood cells, which could be due to trauma or bleeding from the radial artery, presenting similarly to a thrombosed pseudoaneurysm.
- Arteriovenous fistula (AVF): An abnormal connection between an artery and a vein, which could potentially present with similar symptoms if it becomes thrombosed or if there's significant shunting of blood.
- Radial artery thrombosis: A clot within the radial artery itself, which could present with similar symptoms, especially if there's associated swelling or a palpable mass.
- Do Not Miss (ddxs that may not be likely, but would be deadly if missed.)
- Embolic event: Although less likely, an embolic event originating from the radial artery could lead to severe ischemia of the hand, necessitating urgent intervention.
- Infection (mycotic pseudoaneurysm): A pseudoaneurysm that becomes infected, which is a serious condition requiring prompt antibiotic treatment and possible surgical intervention.
- Malignancy: Rarely, a mass in this area could be due to a malignant process, such as a soft tissue sarcoma, which would have a significantly different treatment approach.
- Rare diagnoses
- Vascular malformation: A congenital anomaly of the blood vessels that could potentially present in adulthood, requiring specific diagnostic and therapeutic approaches.
- Traumatic aneurysm of another nearby artery: Although the radial artery is specified, trauma could potentially affect other nearby arteries, leading to aneurysm formation.
- Vasculitis: Inflammation of the blood vessels, which could lead to aneurysm or pseudoaneurysm formation, although this would be less common in the radial artery.