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Ultrasound features of disseminated adenomucinosis (pseudomyxoma)
1Department of Internal Medicine, Chi Mei Foundation Hospital, Tainan, Taiwan.
Abstract:
Pseudomyxoma is a clinical entity in which the peritoneal surfaces and omentum are involved with gelatinous, mucinous implants, and often massive gelatinous ascites. Most cases originate from ruptured ovarian cysts or appendiceal mucoceles, and involve only the intraperitoneal cavity. This report describes a case of disseminated adenomucinosis, the benign form of pseudomyxoma, with both peritoneal and retroperitoneal involvement. The diagnosis was suggested by real-time ultrasound and confirmed at surgery. The ultrasound characteristics of this rare entity and the differential diagnoses are discussed.
Insights
Pseudomyxoma involves gelatinous implants in the abdomen. This case highlights disseminated adenomucinosis with rare retroperitoneal spread, diagnosed via ultrasound.
Area of Science:
- Oncology
- Gastroenterology
- Radiology
Background:
- Pseudomyxoma peritonei is characterized by mucinous implants on peritoneal surfaces, typically originating from ovarian or appendiceal sources.
- It commonly presents with massive gelatinous ascites and is confined to the intraperitoneal cavity.
- Disseminated adenomucinosis represents a benign form of pseudomyxoma.
Observation:
- This report details a rare case of disseminated adenomucinosis extending beyond the peritoneum into the retroperitoneal space.
- The patient presented with symptoms suggestive of widespread mucinous disease.
- Real-time ultrasound imaging played a crucial role in suspecting the diagnosis prior to surgical confirmation.
Findings:
- The case confirmed disseminated adenomucinosis with both peritoneal and retroperitoneal involvement, a rare presentation.
- Ultrasound demonstrated characteristic features aiding in the diagnostic process.
- Surgical findings corroborated the imaging diagnosis of extensive mucinous implants.
Implications:
- This case expands the understanding of pseudomyxoma's potential spread patterns, including retroperitoneal involvement.
- It underscores the utility of real-time ultrasound in the early diagnosis of rare abdominal pathologies.
- Further research into the imaging characteristics and management of such disseminated mucinous neoplasms is warranted.