- Case report
- Open Access
- Open Peer Review
Giant scrotal elephantiasis of inflammatory etiology: a case report
© Denzinger et al; licensee BioMed Central Ltd. 2007
- Received: 15 February 2007
- Accepted: 02 June 2007
- Published: 02 June 2007
Scrotal lymphedema is rare outside endemic filariasis regions in Africa and Asia. It is of variable origin in the western world.
We present a case of a 40-year-old European man with massive elephantiasis of the scrotum attributed to chronic inflammation of the lower urinary tract caused by urinary outlet obstruction and diabetes mellitus. The patient underwent subtotal scrotectomy saving penis, testes and spermatic cords and followed by scrotal reconstruction with adequate cosmetic and functional outcome.
In this report we discuss a rare case of scrotal elephantiasis in an European patient, reflect on the etiology and the diagnostic and therapeutic approaches. Surgery can be successful even in giant scrotal elephantiasis.
- Chlamydia Trachomatis
- Spermatic Cord
- External Genitalia
- Neurogenic Bladder
Massive scrotal lymphedema, also termed elephantiasis, can be caused by obstruction, aplasia or hypoplasia of lymphatic vessels. It is usually caused by acquired infection e.g. lymphogranuloma venereum or filarial infestation with Wuchereria bancrofti. Scrotal elephantiasis is extremely rare outside endemic regions in Africa and India [1, 2]. Occasionally it has been attributed to radiotherapy, neoplasm and lymphadenectomy [3, 4].
Primary lymphedema i.e. congenital elephantiasis, is an extremely rare condition. Patients develop edema at adolescence without restriction to the external genitalia. In hereditary elephantiasis of the Meige type, lymphedema of the external genitalia occurs due to malformation of lymphatic vessels . In some cases hidradenitis suppurativa and lichen sclerosus et atrophicus have also been described .
Scrotal elephantiasis is both emotionally distressing and physically disabling. Difficulties with hygiene, urinary incontinence, unesthetic appearance, loss of libido and immobility are severely debilitating symptoms. The etiology of the lymphedema usually determines the natural course and the therapeutic approach.
In April 2005, a 40-year-old Caucasian male was admitted to the Department of Urology of the University of Regensburg, Germany, with massive scrotal elephantiasis. He had been undergoing antibiotic treatment in another hospital for the previous three weeks.
The patient had a history of spina bifida with paralysis of the lower extremities, neurogenic bladder dysfunction, insulin dependent diabetes mellitus type 2 and slight mental retardation. Up to the age of 30 the patient was mobile by the use of a wheelchair, however the increasing size of his scrotum had made him bed-ridden for the past 10 years. Suprapubic cystostomy had been performed outside our institution ten years ago due to residual urine and recurrent urinary tract infections. There was no history of sexual contact, surgery, irradiation or travel.
We decided to perform a subtotal scrotectomy with preservation of the penis and both testes and subsequent reconstruction of the scrotum by rotation flap. Primary closure of the wound was achieved.
Scrotal elephantiasis is a rare condition outside regions endemic for Chlamydia trachomatis or Wuchereria bancrofti. McDougal presented an overview of etiologic factors of lymphedema of the external genitalia in 2003. Besides infections, neoplasms or chronic inflammation, scrotal lymphedema is rarely caused by congenital conditions, e.g. the rare Meige syndrome leading to malformation of lymphatic vessels of the external genitalia .
In this case extensive diagnostics indicated no other cause than chronic lower urinary tract infection and thus the case presented here was attributed to inflammation. Residual urine related to the patient's neurogenic bladder led to chronic inflammation that was further enhanced by his type 2 diabetes mellitus. Postoperatively, even after meticulous histopathologic and electron microscopic preparation of the tissue, no other etiologic evidence was found apart from nonspecific inflammatory reactions.
Some cases of scrotal lymphedema warrant elimination of the cause of the disease e.g. by antibiotic therapy. Usually there is no permanent damage to the skin, lymphatic or subcutaneous tissue [1, 6, 7]. However, in a case of persistent scrotal lymphedema, irreversible damage of the involved tissue can occur with the danger of necrotising fasciitis.
In this case we finally opted for surgical intervention. In extensive disease, complete excision of all elephantoid tissue, preferably saving the penis, spermatic cord and testes, is appropriate [2, 8, 9]. In accordance with the desires of the patient we preserved the spermatic cords and both testes despite the extent of the disease. If available, scrotal flaps are most suitable for reconstruction of the scrotum. Medial thigh flaps can be used in the absence of adjacent scrotal tissue. Mesh skin graft is widely accepted for use in penile skin defects .
Despite protracted wound healing taking 10 weeks until final closure, the patient gained considerably in quality of life. The patient now is able to move himself by wheelchair again. After a follow-up period of 18 months the patient's erectile function was reestablished enabling sexual intercourse. This case shows that surgical therapy can provide good functional and cosmetic results even in massive scrotal elephantiasis.
Scrotal lymphedema is a rare syndrome outside regions of endemic Chlamydia trachomatis or Wuchereria boncrofti like Africa or Asia. Scrotal lymphedema in the western world is of variable origin. We present one European patient with scrotal lymphedema caused by chronic lower urinary tract infection and discuss the diagnostical and therapeutical approach. In the case presented here extensive excision of elephantoid tissue saving penis, spermatic cord and testes was performed with adequate cosmetic and functional results.
The authors thank Cornelia Mohaupt and Ingrid Gebhard for excellent assistance. Written consent was obtained from the patient for publication of the study.
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