Related Experiment Video
Updated: Aug 6, 2026
A Coregistered Ultrasound and Photoacoustic Imaging Protocol for the Transvaginal Imaging of Ovarian Lesions
Published on: March 3, 2023
Pancreatic arteriovenous malformation presenting as cysts: Doppler sonographic diagnosis
T Yamamoto1, K Takeuchi, H Honjo
1Department of Gastroenterology, Toranomon Hospital, 2-2-2 Toranomon, Minato-Ku, Tokyo 105-8470, Japan.
Abstract:
A 50-year-old man presented with multiple lesions resembling cysts throughout the pancreas on gray-scale sonography. Pulsatile blood flow detected within the lesions on color Doppler sonography led to the diagnosis of pancreatic arteriovenous malformation (PAVM). Most previously reported PAVMs have been described as having a poorly defined, reticular, or mosaic-like hypoechoic appearance on gray-scale sonography; the cystic appearance of the PAVM seen in our case is unusual.
Insights
A rare case of pancreatic arteriovenous malformation (PAVM) presented as multiple cystic lesions on ultrasound. Doppler imaging confirmed pulsatile flow, aiding diagnosis in this unusual presentation of PAVM.
Area of Science:
- Vascular Surgery
- Diagnostic Imaging
- Gastroenterology
Background:
- Pancreatic arteriovenous malformations (PAVMs) are rare vascular anomalies.
- Typical imaging findings include ill-defined, hypoechoic, reticular, or mosaic patterns.
Observation:
- A 50-year-old male presented with multiple pancreatic lesions mimicking cysts on gray-scale sonography.
- Color Doppler sonography revealed pulsatile blood flow within these lesions.
Findings:
- The sonographic appearance of cystic lesions was unusual for PAVM.
- Pulsatile flow on Doppler confirmed the diagnosis of pancreatic arteriovenous malformation.
Implications:
- This case highlights the importance of Doppler evaluation in diagnosing pancreatic vascular lesions.
- Recognizing unusual sonographic presentations of PAVM is crucial for accurate diagnosis and management.
