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Macronodular deformity of the spleen
1First Department of Internal Medicine, Akita University School of Medicine, 1-1-1 Hondo, Akita, Japan.
Abdominal Imaging
|June 30, 2001
Summary
Macronodular splenic deformity, a rare condition, can be caused by portal thrombosis. This splenic deformity may mimic liver tumors on ultrasound, necessitating careful examination of the portal system.
Area of Science:
- Radiology
- Gastroenterology
- Pathology
Background:
- Macronodular splenic deformity without a focal lesion is rarely documented.
- Understanding the pathomechanism of splenic deformities is crucial for accurate diagnosis.
Observation:
- Three cases of macronodular splenic deformity were analyzed.
- One case presented with unknown cause and an elongated liver mimicking a splenic lesion.
- Two cases were associated with extended portal thrombosis affecting intrahepatic and extrahepatic portal systems.
Findings:
- Portal flow disturbance due to thrombosis is a potential cause of splenic deformity.
- Color Doppler ultrasonography confirmed patent splenic vessels in one case.
- Marked splenic deformity can resemble a liver tumor, especially with an elongated liver.
Implications:
- Ultrasonography findings of a deformed spleen warrant investigation for portal system thrombosis.
- Accurate sonographic interpretation is vital to prevent misdiagnosis of splenic deformities as liver tumors.
- Awareness of this rare splenic condition aids in clinical decision-making.