Why the study?
Retroperitoneal cavernous lymphangiomas are rare benign lesions with atypical imaging manifestations that can lead to preoperative misdiagnosis.
Retroperitoneal cavernous lymphangioma is a rare benign tumor that can present with atypical imaging features mimicking sarcoma, requiring surgical resection for definitive diagnosis and treatment.
Warrants inclusion in retroperitoneal mass differentials; this Level 5 case leaves open standardized imaging criteria and management.
Lymphangiomas are rare benign lesions that seldom occur in the abdominal cavity. Retroperitoneal involvement is particularly uncommon and accounts for only 1% of all cases. We reviewed cases of retroperitoneal lymphangiomas reported over the past decade, among which cystic lymphangiomas were the most prevalent subtype. This study reports the clinicopathological characteristics and imaging findings of a case of primary retroperitoneal cavernous lymphangioma. Due to its atypical imaging manifestations, the preoperative diagnosis was retroperitoneal sarcoma. Through this case report, we aim to provide clinicians with additional insights into the pathological and imaging features of this disease.
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Fu et al. (2026) studied this question.
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