# The Evaluation of Upper Labial Swelling: An Arteriovenous Malformation

## TL;DR

This case report describes a successful diagnosis and surgical treatment of an arteriovenous malformation in a 75-year-old woman's upper lip.

## Contribution

The paper presents a clinical case highlighting the diagnostic and treatment approach for a rare vascular malformation in the lip.

## Key findings

- A bluish-purple swelling on the upper lip was diagnosed as an arteriovenous malformation.
- Surgical resection confirmed the presence of a confined vascular lesion.
- Hemodynamic and embryologic factors were discussed in relation to AVM formation.

## Abstract

Vascular malformations, which include disorders of the lymphatic or vascular systems, can appear in a variety of ways on radiographs, in the radiological department, and histologically. High-flow lesions with direct arteriovenous connections are known as arteriovenous malformations (AVMs). These lesions can cause soft tissue loss and deformity since they are difficult to diagnose early. This case report describes a 75-year-old female who presented with a severe bluish-purple swelling on her top lip. After conducting a thorough investigation, the patient's condition was quickly identified as AVM.

After confirmation by USG Doppler and histological examination, the patient underwent a successful surgical resection that revealed a confined vascular lesion suggestive of AVM. The discussion explores the hemodynamic and embryologic factors that contribute to the formation of AVM, pointing out differences in hemodynamic properties and clinical symptoms. Treatment choices are influenced by the categorization of peripheral AVMs according to clinical standards and angiographic flow characteristics.