World J Mens Health.  2013 Dec;31(3):262-264.

A Case of Fibrous Pseudotumor of the Paratesticular Region

• Bharti JN
• Dey B
• Mittal A
• Arora P

Abstract

A 78-year-old male patient presented with an inguinoscrotal nodule that had lasted for 3 years. The patient reported a past medical history of hydrocele formation. The final diagnosis was fibrous pseudotumor of the paratesticular region, which was based on a histopathological examination and immunohistochemical findings. The aim of this case report is to spread awareness and recognition of neoplastic and non-neoplastic entities that occur in the paratesticular region.

Keyword

Benign; Cell proliferation; Neoplasms, fibrous tissue

MeSH Terms

Aged
Cell Proliferation
Diagnosis
Humans
Male
Neoplasms, Fibrous Tissue

Figure

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  Fig. 1 Grossly, the testis (star), cord, and grey white nodule (arrow) could be distinguished from each other.

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  Fig. 2 (A, B) The cellular lesions and spindle cells arranged in fascicles (A: H&E, ×400; B: H&E, ×600). (C) The tumor cells showed strong reactivity with smooth muscle antigen (×400). (D) The tumor cells showed strong reactivity with muscle specific actin (×600).

Reference

1. Tobias-machado M, Corrêa Lopes Neto Lopes, Heloisa Simardi L, Borrelli M, Wroclawski ER. Fibrous pseudotumor of tunica vaginalis and epididymis. Urology. 2000; 56:670–672.

2. Mostofi FK, Price EB. Tumors of the male genital system. In : Firminger HI, editor. Atlas of tumor pathology: 2nd series. Washington: Armed Forces Institute of Pathology;1967. p. 151–154.

3. Jones MA, Young RH, Scully RE. Benign fibromatous tumors of the testis and paratesticular region: a report of 9 cases with a proposed classification of fibromatous tumors and tumor-like lesions. Am J Surg Pathol. 1997; 21:296–305.

4. Hollowood K, Fletcher CD. Pseudosarcomatous myofibroblastic proliferations of the spermatic cord ("proliferative funiculitis"). Histologic and immunohistochemical analysis of a distinctive entity. Am J Surg Pathol. 1992; 16:448–454.

5. Bösmüller H, von Weyhern CH, Adam P, Alibegovic V, Mikuz G, Fend F. Paratesticular fibrous pseudotumor--an IgG4-related disorder? Virchows Arch. 2011; 458:109–113.

6. Thompson JE, van der Walt JD. Nodular fibrous proliferation (fibrous pseudotumour) of the tunica vaginalis testis. A light, electron microscopic and immunocytochemical study of a case and review of the literature. Histopathology. 1986; 10:741–748.

7. Allen PR, King AR, Sage MD, Sorrell VF. A benign gonadal stromal tumor of the testis of spindle fibroblastic type. Pathology. 1990; 22:227–229.

8. Greco MA, Feiner HD, Theil KS, Mufarrij AA. Testicular stromal tumor with myofilaments: ultrastructural comparison with normal gonadal stroma. Hum Pathol. 1984; 15:238–243.

9. Parveen T, Fleischmann J, Petrelli M. Benign fibrous tumor of the tunica vaginalis testis. Report of a case with light, electron microscopic, and immunocytochemical study, and review of the literature. Arch Pathol Lab Med. 1992; 116:277–280.

10. Khallouk A, Ahallal Y, Tazi E, Tazi MF, Elfassi MJ, Farih MH. Benign paratesticular fibrous pseudotumor with malignant clinical features. Rev Urol. 2011; 13:e203–e205.