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Year : 2010  |  Volume : 2  |  Issue : 1  |  Page : 44-45 Table of Contents     

Castleman's disease: A rare differential diagnosis for retroperitoneal tumors

1 Department of Urology, Apollo Hospitals, Chennai-600 006, Tamil Nadu, India
2 Department of Histopathology, Apollo Hospitals, Chennai-600 006, Tamil Nadu, India

Date of Web Publication30-Apr-2010

Correspondence Address:
Sanish Shringarpure
Department of Urology, Apollo Hospitals, 21 Greams Road, Chennai-600 006, Tamil Nadu
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DOI: 10.4103/0974-7796.62912

PMID: 20842260

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How to cite this article:
Shringarpure S, Sivaraman P B, Parmeswaran A. Castleman's disease: A rare differential diagnosis for retroperitoneal tumors. Urol Ann 2010;2:44-5

How to cite this URL:
Shringarpure S, Sivaraman P B, Parmeswaran A. Castleman's disease: A rare differential diagnosis for retroperitoneal tumors. Urol Ann [serial online] 2010 [cited 2021 Oct 17];2:44-5. Available from: https://www.urologyannals.com/text.asp?2010/2/1/44/62912


Castleman's disease (CD) is a benign disorder, first described by Benjamin Castleman. [1] Synonyms include angiofollicular lymph node hyperplasia and giant lymph node hyperplasia. [2]

A 57 year old nonhypertensive male presented with vague abdominal pain since 3-4 years Routine hematology and blood biochemistry were normal. The 24-hour urinary metanephrine and normetanephrine levels were within normal limits; the chest x-ray was normal. Computed tomography (CT) scan of abdomen showed a 9.6 Χ 6.0 Χ 6.7 cm 3 heterogeously enhancing lesion in the retroperitoneum between the left kidney and the aorta. The lesion had specks of calcification and the fat planes were preserved. There was another 4.6 Χ 4.1 Χ 5.0 cm 3 heterogeneously enhancing space occupying lesion in the pelvic cavity medial to the right internal iliac artery [Figure 1]. A definite preoperative diagnosis could not be made. He underwent exploration with excision of both the retroperitoneal tumors. There was a 9 Χ 7.5 Χ 3.5 cm 3 thick oval mass posterior to the left kidney and another 6 Χ 7 cm 2 mass in the pelvis, between the external and the internal iliac vessels. On section, they were well encapsulated, tan colored, and fleshy with minute spaces. Histopathology of both the masses was similar and revealed masses of disordered lymphoid tissue with compressed sinuses and many small regressively transformed follicles surrounded by concentric rings of small lymphocytes [Figure 2]. The follicles contained whorls of follicular dendritic reticulum cells with central hyalinized blood vessels perforating the follicles. A diagnosis of hyaline-vascular type of CD was made on both the masses. The patient had an uneventful postoperative recovery and is doing well without any signs of recurrence after two years of follow-up.

CD is a rare lymphoid disorder characterized by lymphoid and vascular proliferation. There is no age and sex predilection.

It is classified as localized unicentric form and multicentric generalized forms based on radiologic and clinical findings. Based on histopathology, it has been classified into hyaline-vascular and plasmacytic forms. [3]

The aetiology of CD is still poorly understood. Several studies have suggested a role for HHV-8 (human herpes virus) in the pathogenesis of multicentric CD (MCD). IL-6 has been implicated in the pathophysiology of Castleman's disease.

The localized forms are asymptomatic in 51% of the cases and are often discovered at the time of routine physical examination, chest x-ray or routine abdominal ultrasonography. The common sites are: thorax (63%), abdomen (12%), and axilla (4%). To date, 122 cases of retroperitoneal CD have been identified in the world literature, of which 20 % were found in the peri-renal region. [4],[5],[6],[7]

The clinical presentation of retroperitoneal localized CD can be due to symptoms related to compression effect on surrounding organs as nausea, vomiting, weight loss, post-prandial discomfort,abdominal or lumbar pain.

Contrast-enhanced CT scan shows dotty and stripy enhancement and rim like enhancement on the delayed scans. It can also show star-shaped microcalcifications, which are quite specific on precontrast images. Postcontrast IV study, while demonstrating dense enhancement of the mass, could demonstrate a central stellate scar. Magnetic resonance imaging (MRI) characteristics of CD are: hypodense mass on the T1 weighted study and hyperdense lesion on the T2 weighted image, sometimes with star-shaped calcifications. [8]

The best treatment for unicentric form of CD is complete surgical excision; the prognosis of this variety being close to 100% after resection. No therapeutic consensus exists at present for the multicentric forms of Castleman's disease. Patients with multicentric disease do not benefit from surgical treatment. Complete remissions in patients have been occasionally been obtained using combination chemotherapy.

   References Top

1.Castleman B, Iverson L, Menendez VP. Localized mediastinal lymph node hyperplasia resembling thymoma. Cancer 1956;9:822-30.  Back to cited text no. 1  [PUBMED]    
2.Bowne WB, Lewis JJ, Filippa DA, Niesvizky R, Brooks AD, Burt ME, et al. The management of unicentric and multicentric Castleman's disease: A review of 16 cases and a review of the literature. Cancer 1999;85:706-17.   Back to cited text no. 2  [PUBMED]  [FULLTEXT]  
3.Keller AR, Hochholzer L, Castleman B. Hyaline-vascular and plasma-cell types of giant lymph node hyperplasia of the mediastinum and other locations. Cancer 1972;29:670-83.  Back to cited text no. 3  [PUBMED]    
4.Gupta NP, Ansari MS, Chopra P, Dinda AK. Castleman's disease masquearading as an adrenal tumor. J Urol 2002;168:2524.  Back to cited text no. 4  [PUBMED]  [FULLTEXT]  
5.Seco JL, Velasco F, Manuel JS, Serrano SR, Tomas L, Velasco A. Retroperitoneal Castleman's disease. Surgery 1992;112:850-5.   Back to cited text no. 5  [PUBMED]    
6.Vora K, Dash A, Bach A, Gopalan A, Russo P. A case of Castleman's disease that presented as a retroperitoneal mass. Nat Clin Pract Urol 2007;4:285-8.  Back to cited text no. 6  [PUBMED]  [FULLTEXT]  
7.Bucher P, Chassot G, Zufferey G, Ris F, Huber O, Morel P. Surgical management of abdominal and retroperitoneal Castleman's disease. World J Surg Oncol 2005;3:33.  Back to cited text no. 7  [PUBMED]  [FULLTEXT]  
8.Luburich P, Nicolau C, Ayuso MC, Torra R, Clavero JA. Pelvic Castleman disease: CT and MR appearance. J Comput Assist Tomogr 1992;16:657-9.  Back to cited text no. 8  [PUBMED]    


  [Figure 1], [Figure 2]

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