The necessity of a more aggressive initial surgical treatment in patients with mesothelioma of the testicular tunica vaginalis

Our plain-English summary of The necessity of a more aggressive initial surgical treatment in patients with mesothelioma of the testicular tunica vaginalis, by C. Brun, S. Giusiano, K. Thiam, et al (Annals of Medicine and Surgery, 2019).

The study

• Authors: C. Brun, S. Giusiano, K. Thiam, J. Guinde, M. Froudarakis, P. Astoul
• Journal: Annals of Medicine and Surgery
• Published: 2019;47:57-60
• Type of article: Case report
• Cited by: 5 articles, as counted by NIH iCite
• Read it: PubMed · Publisher · Free full text

Abstract

Mesothelioma of the tunica vaginalis of the testis (MTVM) is a rare tumor encountering for less than 1% of mesothelioma. Patients suffering from these tumors have poor survival due to local and distant metastasis despite treatment. Actually, no specific treatment recommendations exist for this tumor, yet radical orchidectomy is the gold standard in limited disease. We herein report the case of a 71 patient with MTVM who underwent radical orchidectomy without inguinal lymph node dissection and recurred 2 years later with metastasis in pelvic and mediastinal lymph nodes. Despite systemic chemotherapy combining pemetrexed, bevacizumab and Cisplatinum, the disease relapsed eight months later with multiple metastatic lung nodules leading to a treatment shift. We believe that systematic inguinal-iliac lymph node resection should be included in the initial treatment of this tumor.

© 2019 Published by Elsevier Ltd on behalf of IJS Publishing Group Ltd.

In plain English

This case report described one 71-year-old man with mesothelioma of the tunica vaginalis of the testis, a rare tumor of the lining around the testicle. A large hydrocele (fluid around the testicle) was found at a routine prostate consultation, and ultrasound showed a 3 cm tumor. The article states that he had no asbestos exposure at work or at home. Scans showed no spread, and he had a radical orchidectomy (removal of the testicle) without lymph node removal. The tumor was an epithelioid malignant mesothelioma. He was then monitored with PET-CT scans every three months without further treatment. Twenty-four months after surgery, a biopsy showed the mesothelioma had returned in a lymph node in the lower chest (mediastinum). A lymph node at the back of the abdomen (retroperitoneum) also showed increased activity on PET. After six cycles of chemotherapy combining platinum, pemetrexed and bevacizumab, the disease was stable. Eight months later it returned as multiple lung nodules. The authors recommended adding systematic lymph node removal to the initial surgery and using PET-CT in follow-up.

We wrote this plain-English summary from the full article with the help of AI, and a second AI model checked each sentence against the article. It is not the authors' wording; the abstract and the article are their own account.

What the study did and found

• Design: case report (single patient)
• Who was studied: one 71-year-old man with mesothelioma of the tunica vaginalis of the testis, first seen at a routine prostate consultation
• Exposure: No asbestos exposure was found in the patient's work or home history. He had a 20 pack-year smoking history.
• Main results:
  • Before surgery, computed tomography showed no metastasis.
  • A radical orchidectomy was performed without removal of lymph nodes.
  • Histology showed malignant mesothelioma of epithelioid type with papillary and tubular structures.
  • Postoperative PET-CT showed no metastasis, and the patient was followed with PET-CT every three months without further treatment.
  • Twenty-four months after initial treatment, CT showed a 14 mm lower mediastinal lymph node, along with a hypermetabolic retroperitoneal lymph node on PET. Biopsy of the mediastinal node confirmed mesothelioma relapse.
  • Chemotherapy combining platinum with pemetrexed and bevacizumab gave stable disease after six cycles.
  • Eight months later the disease relapsed with multiple metastatic lung nodules, and the CT also showed irregular pleural thickening.
• The authors' conclusion: The authors recommended adding systematic lymph node dissection to radical orchidectomy in this patient population, and using PET-CT in post-operative surveillance.
• Limitations the authors state:
  • The authors note that no published data exist on using PET for surveillance of this tumor.

Topics

Medical terms in this study, explained in our Lexicon: Mesothelioma, Tunica Vaginalis, Metastasis, Mediastinal Lymph Nodes, Chemotherapy, Pemetrexed (Alimta), Bevacizumab.

Related studies

• Malignant mesothelioma of testicular tunica vaginalis — K. Abe, N. Kato, et al. (2002)
• Analysis of mutations of PARP1, RNF213, PAX8, KMT2C, MTRR in malignant mesothelioma of testicular tunica vaginalis testis — A. Kowalik, A. Wincewicz, et al. (2020)
• Malignant mesothelioma of the tunica vaginalis testis initially misdiagnosed as a benign testicular hydrocele: a case report — C. Zhang, H. Su, et al. (2026)
• Mesothelioma of the tunica vaginalis testis: a rare malignancy mimicking more common inguino-scrotal masses — P.J. Schure, K.C. van Dalen, et al. (2006)
• When a hydrocele is more than a hydrocele: Warning symptoms and signs of malignant mesothelioma of the tunica vaginalis testis — J. Cornfield, M. Lee, et al. (2026)
• Malignant Mesothelioma of the Tunica Vaginalis Testis: Outcomes Following Surgical Management Beyond Radical Orchiectomy — P. Recabal, B. Rosenzweig, et al. (2017)

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