Malignant Mesothelioma of the Tunica Vaginalis: About a Rare Clinical Case

Our plain-English summary of Malignant Mesothelioma of the Tunica Vaginalis: About a Rare Clinical Case, by J. Guerra, J.M. Pina, V. Andrade, et al (Curēus, 2024).

The study

• Authors: J. Guerra, J.M. Pina, V. Andrade, J. Cassis, L. Campos Pinheiro
• Journal: Curēus
• Published: 2024;16(9):e69897
• Type of article: Case report
• Read it: PubMed · Publisher · Free full text

Abstract

Malignant mesothelioma (MM) of the tunica vaginalis is an exceedingly rare neoplasm, with fewer than 300 cases reported in the medical literature. Due to its rarity, epidemiology, and risk factors are still unclear, and it is unknown whether asbestos or chronic inflammatory conditions play a role in etiology. This case study presents a 70-year-old male patient with MM of the tunica vaginalis, detailing the diagnostic challenges, treatment procedures, and eventual progression to palliative care. The study underscores the importance of accurate diagnosis and the aggressive nature of the disease despite treatment efforts.

Copyright © 2024, Guerra et al.

In plain English

This article is a case report, by authors at hospitals in Lisbon, Portugal, about one 70-year-old man with malignant mesothelioma of the tunica vaginalis, the lining around the testis. The authors recorded that he had no exposure to asbestos. In 2020 he had a painless swelling on the right side of the scrotum that had grown over several months. Ultrasound suggested a large hydrocele, a fluid collection. During surgery in November 2020, the surgeons unexpectedly found multiple irregular nodular growths on the tunica vaginalis. Laboratory staining showed the tumor was positive for calretinin and WT1, markers consistent with mesothelioma. In December 2020 he had the right testis removed (radical orchidectomy). The tumor had invaded tissue under the skin of the scrotum but not the testis itself. In April 2021 a lymph node in the right groin contained mesothelioma. An October 2021 CT scan showed spread to the lungs and lymph nodes. He was moved to palliative care and died the following month. The authors concluded that this cancer, though rare, should be considered when assessing groin and scrotal swellings.

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 70-year-old man who first had symptoms in 2020, reported by authors from urology and pathology departments in Lisbon, Portugal
• Exposure: The patient had no exposure to asbestos, according to the article
• Main results:
  • At surgery in November 2020 for a presumed hydrocele, multiple irregular nodular growths were found on the inner surface of the tunica vaginalis
  • Immunohistochemical staining was strongly positive for calretinin and WT1, confirming malignant mesothelioma of the tunica vaginalis
  • After radical orchidectomy in December 2020, the tumor showed focal invasion into the subcutaneous tissues of the scrotum, without invading the testis
  • In April 2021 an enlarged right inguinal (groin) lymph node was removed and found to be a metastasis of the mesothelioma
  • An October 2021 CT scan showed disease progression with lung and lymph node metastasis
  • The patient was moved to palliative and comfort care and died the following month
• The authors' conclusion: The authors concluded that malignant mesothelioma of the tunica vaginalis, though rare, should be considered in the differential diagnosis of inguino-scrotal swellings

Topics

Medical terms in this study, explained in our Lexicon: Mesothelioma, Tunica Vaginalis, Neoplasm, Epidemiology, Etiology, Palliative Care.

Related studies

• Malignant mesothelioma of the tunica vaginalis testis: a rare case and review of literature — M. Drevinskaite, A. Patasius, et al. (2020)
• Malignant mesothelioma of tunica vaginalis testis: Report of a very rare case with review of the literature — E. Trenti, S.M. Palermo, et al. (2018)
• Malignant Mesothelioma of the Tunica Vaginalis: A Rare Neoplasm--Case Report and Literature Review — M. Segura-González, J. Urias-Rocha, et al. (2015)
• 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)
• A rare presentation of malignant mesothelioma of the tunica vaginalis managed with immunotherapy and review of the literature — K. Mishra, S. Siddiquee, et al. (2023)
• Malignant Mesothelioma of Tunica Vaginalis Testis: Macroscopic and Microscopic Features of a Very Rare Malignancy — E. Arda, M.G. Arıkan, et al. (2017)

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