Post-Traumatic Pseudoaneurysm of Common Digital Artery of Superficial Palmar Arch- A Curious Case with Critical Complexities
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Abstract:
Pseudoaneurysm
is an extremely rare condition but poses significant challenges in early
diagnosis and can lead to devastating complications if untreated. Pseudoaneurysm
is defined as the dilation of the arterial wall caused by disruption of the vessel
wall leading to extravasation of blood into a false sac that has communication
with the vessel lumen. True aneurysm is formed by all three layers of the arterial
wall while pseudoaneurysm is formed by tunica adventitia. Trauma is the most
common cause of pseudoaneurysms. It is a rare entity but with significant
complications such as thrombosis, embolism and compression of nerves and veins.
Here we bring up a case of a twenty-one-year-old male who presented with
swelling over his left hand below 2nd web space following a fire
crack injury which was associated with pain, restriction of movement and
numbness over his left middle finger. The swelling was found to be well-defined,
pulsatile, compressible, and cystic in consistency with palpable thrill and
systolic bruit on auscultation. Doppler ultrasound showed a cystic lesion with
characteristic yin-yang flow. A diagnosis of possible partially thrombosed
post-traumatic pseudoaneurysm was made. Surgical ligation with excision under
regional anaesthesia was done. Histopathological examination confirmed the
diagnosis of pseudoaneurysm. The patient made a full recovery with no post-operative
complications. This emphasizes the importance of early diagnosis and management
of pseudoaneurysm. Also, this reinvigorates surgical management as the gold
standard treatment.
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