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 Table of Contents  
CORRESPONDENCE
Year : 2016  |  Volume : 129  |  Issue : 13  |  Page : 1627-1628

Primary Paraganglioma of Seminal Vesicle


Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, China

Date of Submission09-Mar-2016
Date of Web Publication22-Jun-2016

Correspondence Address:
Dr. Dao-Hu Wang
Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, 58, Zhongshan 2 Road, Guangzhou, Guangdong 510080
China
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0366-6999.184471

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How to cite this article:
Liu C, Mo CQ, Jiang SJ, Pan JC, Qiu SP, Wang DH. Primary Paraganglioma of Seminal Vesicle. Chin Med J 2016;129:1627-8

How to cite this URL:
Liu C, Mo CQ, Jiang SJ, Pan JC, Qiu SP, Wang DH. Primary Paraganglioma of Seminal Vesicle. Chin Med J [serial online] 2016 [cited 2018 Jan 24];129:1627-8. Available from: http://www.cmj.org/text.asp?2016/129/13/1627/184471

To the Editor: Extra-adrenal paragangliomas are tumors that arise from neural crest-derived endocrine cells. They are most frequently found in the organ of Zuckerkandl but can be found anywhere along the sympathetic chain.[1] Seminal vesicle paragangliomas have been reported to involve bladder and prostate. However, only two cases of primary seminal vesicle paragangliomas were reported in medical literature to the best of our knowledge.[1],[2] Here, we reported on one case.

A 44-year-old male patient with the family history of hypertension was admitted to the local hospital with a chief complaint of the lower abdominal discomfort and chest distress for more than 2 years. Subsequent examination revealed hypertension and coronary artery computed tomography (CT) did not show any abnormality. As a result, the patient received antihypertensive therapy. Symptoms happened more frequently, about one to two times per day since 6 months ago. Blood pressure was 200–260/120–150 mmHg at onset and partially responded to therapy as 120–130/90–100 mmHg. Therefore, the patient came to our hospital and was admitted in the endocrinology department. The elevated urine vanillylmandelic acid (VMA) and blood catecholamine were confirmed, and abdominal CT was taken. An occupying lesion in the left seminal vesicle was found, considering ectopic pheochromocytoma [Figure 1], while the adrenal glands and other organs are normal. After oral intake of phenoxybenzamine for 14 days, the patient was admitted to the urology department and underwent laparoscopic resection of the mass. The surgery went well and the mass was found to be paraganglioma of seminal vesicle on pathology. Postoperatively, the symptoms disappeared and the blood pressure returned to normal. Antihypertensive therapy was discontinued and no symptoms occurred during the short-term follow-up of 3 months. Written informed consent was obtained from the patient for publication of this case report and accompanying images.
Figure  1: Abdominal computed tomography showing an occupying lesion in the left seminal vesicle.

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Extra-adrenal paraganglioma (pheochromocytoma) is a rare tumor which can be found anywhere along the sympathetic chain from the base of the skull and neck to the bladder and prostate gland. About 90% of sympathetic paragangliomas are intra-adrenal (pheochromocytomas). Furthermore, approximately 10% of all extra-adrenal paraganglioma are malignant.[3] In the genitourinary tract, the urinary bladder is the most common site for paraganglioma (79.2%), followed by the urethra (12.7%), pelvis (4.9%), and ureter (3.2%).[3],[4]

The histogenesis of seminal vesicle paraganglioma is unknown. Histologically, all paragangliomas show similar morphologic characteristics. Immunohistochemistry shows positive staining for the synaptophysin, chromogranin A, and CD56 neuroendocrine markers. Protein S100 highlights the sustentacular and tumor cells, which is in accordance with our case. Mitotic activity and necrosis have been regarded as some of the unfavorable prognostic factors in histopathology. The only consistent criterion for malignancy in paraganglioma at any site is metastasis.

The clinical manifestation of seminal vesicle paraganglioma may largely depends on the size and the functional status of the tumor.[1] The symptoms and signs of catecholamine overproduction such as hypertension, headaches, palpitations, sweating, and tachycardia may be seen. In general, an elevation of the 24 h urinary catecholamine metabolites and VMA levels can be detected as in our case. The standard treatment for localized or locally advanced seminal vesicle paraganglioma is surgery. Laparoscopic resection has been an effective management because it can magnify the anatomic structure for easier removal and decrease the trauma.

Primary paraganglioma of the seminal vesicle is rare but important to diagnosis in the differential diagnosis of extra-adrenal paragangliomas. Laparoscopic resection appears to be a safe and effective management for localized seminal vesicle paraganglioma.

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.

 
  References Top

1.
Alharbi B, Al-Ghamdi A. Primary paraganglioma of seminal vesicle. Int J Surg Case Rep 2013;4:822-4. doi: 10.1016/j.ijscr.2013.07.009.  Back to cited text no. 1
[PUBMED]    
2.
Alvarenga CA, Lopes JM, Vinagre J, Paravidino PI, Alvarenga M, Prando A, et al. Paraganglioma of seminal vesicle and chromophobe renal cell carcinoma: A case report and literature review. Sao Paulo Med J 2012;130:57-60.  Back to cited text no. 2
    
3.
Hanji AM, Rohan VS, Patel JJ, Tankshali RA. Pheochromocytoma of the urinary bladder: A rare cause of severe hypertension. Saudi J Kidney Dis Transpl 2012;23:813-6. doi: 10.4103/1319-2442.98167.  Back to cited text no. 3
    
4.
Priyadarshi V, Pal DK. Paraganglioma of urinary bladder. Urol Ann 2015;7:402-4. doi: 10.4103/0974-7796.152058.  Back to cited text no. 4
    


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