Uncommon retroperitoneal tumour: follicular dendritic cell sarcoma

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Introduction: Retroperitoneal Follicular Dendritic Cell Sarcomas represents rare tumours with aggressive biologic behaviour. Accurate diagnosis requires a combination of both morphological and immunohistochemical analyses. Patients and methods: A 61-year-old man was referred to our Department with a left perinephric mass. Computed tomography scan showed a 5.5 cm circumscribed mass in front of the left renal vein abutting the first jejunal loop, with moderate heterogeneous contrast enhancement. Positron emission/computed tomography showed increased focal uptake in the lesion. Results: A retroperitoneal tumor located behind the first jejunal loop was found at laparotomy, encompassing the superior mesenteric vessels. Excision with en-bloc segmental small bowel resection was performed. Morphological and immunohistochemical analyses were consistent with Follicular Dendritic Cell Sarcoma. Conclusions: Complete surgical resection in specialized multidisciplinary centers represents the treatment of choice for both primary or recurrent lesions since there is still no consensus on the role of adjuvant radio-chemotherapy.

Original languageEnglish
JournalActa Chirurgica Belgica
Publication statusAccepted/In press - Jan 1 2019


  • diagnosis
  • Follicular dendritic cell sarcoma
  • prognosis
  • retroperitoneum
  • treatment

ASJC Scopus subject areas

  • Surgery


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