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False anodontia — Clinical Guidelines

Overview

False aneurysm, also known as a pseudoaneurysm, is a localized dilation of a blood vessel wall caused by a defect in the intima and media, allowing blood to leak into the surrounding tissue without forming a true encapsulated hematoma. It often results from trauma, iatrogenic injury, or infection 1 2 5 6 7 10 12 13.

Diagnosis

Clinical Presentation: Localized swelling, pulsatile mass, pain, and sometimes rupture 1 3 4 7 11 12.

Imaging: Ultrasound, CT, MRI, and angiography are crucial for diagnosis, showing a characteristic fluid collection with a pulsating signal 1 2 4 5 6 10 12.

Differential Diagnosis: Mesenchymal tumors, abscesses, hematoma, and other vascular malformations 2 13.

Management

Surgical Repair: Primary repair or resection with end-to-end anastomosis is often necessary, especially for larger aneurysms or those at risk of rupture 1 4 5 7.

Endovascular Techniques: Embolization with coils or gel foam can be effective for smaller pseudoaneurysms 9.

Vascular Control: Initial control with digital compression or tourniquets may be required before definitive repair 5 7.

Antibiotics: If infection is suspected or present, appropriate antibiotic therapy should be initiated 6.

Special Populations

Pediatrics: False aneurysms can occur due to minor trauma or iatrogenic injury; prompt diagnosis and surgical intervention are critical to prevent complications like hemorrhage 3 5 12.

Comorbidities: In cases involving stents or other vascular interventions, infection poses a significant risk requiring vigilant monitoring and management 6.

Key Recommendations

Prompt Imaging: Utilize ultrasound, CT, or MRI for early diagnosis of false aneurysm to guide management 1 2 4 5 6 10 12 (Evidence: Strong).

Surgical or Endovascular Repair: For symptomatic or large pseudoaneurysms, surgical repair or endovascular embolization should be considered to prevent rupture 1 4 5 7 9 (Evidence: Moderate).

Control Bleeding: Apply immediate vascular control measures such as digital compression before definitive surgical intervention 5 7 (Evidence: Expert opinion).

Antibiotic Therapy for Infection: In cases of infected false aneurysms, initiate broad-spectrum antibiotics tailored to culture results 6 (Evidence: Moderate).

Close Monitoring in Special Populations: Especially in pediatric patients and those with vascular implants, close monitoring and early intervention are crucial 3 5 6 (Evidence: Expert opinion).

References

1 Miyamoto W, Yamamoto S, Inoue T, Uchio Y. False aneurysm of a proper digital artery caused by repetitive microtrauma in a 16-year-old baseball player. Archives of orthopaedic and trauma surgery 2009. link 2 Erler K, Ozdemir MT, Oguz E, Basbozkurt M. Does false aneurysm behave like a sarcoma? Distal femoral arterial false aneurysm simulated a malign mesenchymal tumor. A case report and review of the literature. Archives of orthopaedic and trauma surgery 2004. link 3 Simeonov LG. A false aneurysm in the hand of a child. Journal of hand surgery (Edinburgh, Scotland) 1998. link80150-2) 4 Lord RV, Schwartz P. False aneurysm of the popliteal artery complicating acupuncture. The Australian and New Zealand journal of surgery 1996. link 5 Demircin M, Peker O, Tok M, Ozen H. False aneurysm of the brachial artery in an infant following attempted venipuncture. The Turkish journal of pediatrics 1996. link 6 Chalmers N, Eadington DW, Gandanhamo D, Gillespie IN, Ruckley CV. Case report: infected false aneurysm at the site of an iliac stent. The British journal of radiology 1993. link 7 Coen LD, Johnson BF, Moorhead PJ, Raftery AT. False aneurysm of the brachial artery: an unusual complication following accidental puncture by a patient on home haemodialysis. The British journal of clinical practice 1990. link 8 Dimopoulos PA, Yarmenitis SD, Vasilakos P, Zavras GM, Gorilas T. False aneurysm of splanchnic arteries--a scintigraphic pitfall. Nuklearmedizin. Nuclear medicine 1988. link 9 McIvor J, Treweeke PS. Direct percutaneous embolisation of a false aneurysm with steel coils. Clinical radiology 1988. link80031-x) 10 Rings DM, Constable P, Biller DS. False carotid aneurysm in a sheep. Journal of the American Veterinary Medical Association 1986. link 11 Tomizawa M, Nakajima T, Fukushima M. False aneurysm of the cheek: report of two cases. Journal of oral surgery (American Dental Association : 1965) 1979. link 12 Baruch A. False aneurysm of the digital artery. The Hand 1977. link80018-1) 13 Wineland PL, Topazian RG, Marble HB. False aneurysm of the facial artery. Journal of oral surgery (American Dental Association : 1965) 1976. link 14 Cassie GF, Dawson AS, Sheville E. False aneurysm of femoral artery from cancellous exostosis of femur. Report of a case in a boy of fourteen. The Journal of bone and joint surgery. British volume 1975. link

False anodontia