Current management of benign retroperitoneal tumors

Benign retroperitoneal tumors (BRT) represent a rare group of heterogeneous diseases. The literature lacks high-quality evidence about the optimal management of BRT, and most of the information available takes the form of case reports or case series. The aim of this review is to provide an overview of current management strategies for adult patients with BRT.A literature search using PubMed indexed articles was conducted and BRT were classified into five different biological subgroups: 1) lipomatous tumors, 2) smooth muscle tumors, 3) peripheral nerve sheath tumors, 4) myofibroblastic tumors, and 5) others. Tumors that are primarily pelvic in origin were excluded.Despite the significant heterogeneity of the disease, several generic considerations have emerged and can be applied to the management of BRT. Specifically, the risk of misdiagnosing a BRT with another pathology such as retroperitoneal sarcoma is notable. When encountered, suspected BRT should therefore be referred to a specialized sarcoma center. Multidisciplinary tumor boards, present at these centers, have a pivotal role in managing BRT. The decision of whether to offer surgery, nonsurgical treatment or a “watch-and-wait” approach should be made after multidisciplinary discussion, depending on tumor histology. Moving forward, collaborative research efforts dedicated to BRT remain crucial in gathering evidence and knowledge to further optimize patient care.     

腹腔镜手术治疗肾囊肿22例

目的:评价腹腔镜下治疗肾囊肿的疗效。方法:在腹腔镜下经后腹膜行去顶减压术治疗肾囊肿患者22例。结果:22例患者均获得成功。结论:在腹腔镜下经后腹膜行去顶减压术治疗肾囊肿具有创伤小、恢复快、治疗彻底的特点。     

Retroperitoneal primary adenocarcinoma of Mullerian origin: case report with radiology review

Retroperitoneum Mullerian neoplasms are extremely rare malignancies. We report a case of a 35-year-old woman who presented with a 12-year history of lower abdominal cystic lesion, presumed of renal origin and benign, as such was not followed for 10 years. Prior to pregnancy, the patient received additional imaging and the lesion was again redemonstrated and questioned to be of ovarian origin. As such, the patient underwent laparoscopy for planned cystectomy and was found to have normal ovaries. After pregnancy, the lesion had increased in size and surgical excision revealed that the cystic mass was retroperitoneal in origin. The histopathology was reported as microinvasive mucinous adenocarcinoma with Mullerian origin. Positron emission tomographic scanning, colonoscopy, and endoscopy were unrevealing. Tumor markers were followed and follow-up scans demonstrated no recurrence.The preoperative diagnosis of primary retroperitoneal adenocarcinomas of Mullerian origin is difficult, and a definitive diagnosis cannot be made without postsurgical histopathological analysis. However, it is important for radiologists to recognize imaging features of this entity and include it in the differential diagnosis. Here we report a case and review imaging features reported for retroperitoneal primary adenocarcinomas of Mullerian origin.