Recurrent retroperitoneal inflammatory myofibroblastic tumor: A case report

Area of Science:

• Oncology
• Pathology

Background:

• Inflammatory myofibroblastic tumor (IMT), previously known as inflammatory pseudotumor, is a rare neoplasm.
• IMT is characterized by myofibroblastic spindle cells and inflammatory infiltrates, with an unclear etiology.
• Clinical presentation of IMT is often non-specific.

Purpose of the Study:

• To report a case of recurrent inflammatory myofibroblastic tumor.
• To highlight the successful management of a complex IMT case.
• To emphasize the importance of complete surgical resection for IMT.

Main Methods:

• Case report of a 74-year-old female patient with recurrent IMT.
• Description of clinical presentation including left hydroureteronephrosis and a large paravertebral mass involving the descending colon.
• Surgical intervention involving complete en bloc re-resection of the tumor.

Main Results:

• The patient underwent successful re-resection of a recurrent IMT 30 months after initial surgery.
• The tumor involved the descending colon and caused left hydroureteronephrosis.
• At 24 months post-surgery, the patient remained disease-free.

Conclusions:

• Complete surgical extirpation is the recommended treatment for both primary and recurrent inflammatory myofibroblastic tumors.
• Early and complete surgical removal can lead to favorable outcomes in IMT management.
• This case underscores the efficacy of surgical intervention in managing recurrent IMT.