- Ectopic Epididymis in Testicular Appendices: Report of Two Cases.
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Hyun Soo Kim, Gou Young Kim, Hyung Lae Lee, Youn Wha Kim, Sung Jig Lim
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Korean J Pathol. 2011;45:S11-S14.
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DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.S1.S11
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 Abstract
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- We report two cases of ectopic epididymal ducts and efferent ductules in the testicular appendices (TAs) of adult men with normally descended testes. In both cases, a sessile TA was incidentally found at the upper pole of the right testis during the scrotal hydrocelectomy. Microscopically, a few closely arranged tubules were detected within the TA. In the first case, the tubules were lined with a pseudostratified columnar epithelium with numerous, long microvilli, and were surrounded by a smooth muscle coat. In contrast, in the second case, the tubules had a wavy luminal surface, because ciliated columnar cells alternated with groups of cuboidal cells. In both cases, strong CD10 immunoreactivity was observed in the luminal border of the lining epithelium.
Surgical pathologists should be aware of the presence of both ectopic epididymal ducts and efferent ductules that can occur in TAs, in order to avoid misinterpretation as transected, functional reproductive structures.
- Smooth Muscle Hyperplasia of the Epididymis: Report of A Case and Review of the Literature.
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Hyun Soo Kim, Ji Youn Sung, Gou Young Kim, Sung Jig Lim, Hyun Cheol Kim, Hyung Lae Lee
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Korean J Pathol. 2009;43(2):177-181.
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DOI: https://doi.org/10.4132/KoreanJPathol.2009.43.2.177
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Abstract
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- A 66-year-old man underwent surgery to remove an incidentally discovered non-tender intrascrotal mass.
Ultrasonography revealed an irregular-margined, heterogeneous mass-like lesion in the epididymal tail. The mass was relatively well circumscribed but unencapsulated, irregular and firm; it consisted of expansile, increased smooth muscle fascicles originating from the epididymal muscular coat. Its cellular growth pattern lacked the cohesive, well-circumscribed proliferation pattern typical of a leiomyoma. A diagnosis of smooth muscle hyperplasia of the epididymis was made. Although ultrasonography is the imaging modality of choice for evaluating suspected intrascrotal masses, there are times when it cannot reliably identify the character of the masses and distinguish malignant from benign lesions. Ill-defined, solid extratesticular masses, that are ultrasonographically ambiguous, should be excised and confirmed histopathologically and smooth muscle hyperplasia of the epididymis should be included in the differential diagnosis of solid extratesticular masses.
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Citations
Citations to this article as recorded by  - Smooth muscle hyperplasia of the testicular adnexa: a clinicopathologic study of 12 cases
Fatimah Alruwaii, David J. Grignon, Muhammad T. Idrees
Human Pathology.2020; 99: 27. CrossRef - Hiperplasia muscular paratesticular (epididimaria) pseudotumoral. Descripción de 2 casos
Inmaculada Ruiz Molina, Vicente Cívico Amat, Beatriz Santiago Agredano
Medicina Clínica.2019; 152(5): e25. CrossRef - Pseudotumoral paratesticular (epididymal) muscle hyperplasia. Two case reports
InmaculadaRuiz Ruiz Molina, Vicente Cívico Amat, Beatriz Santiago Agredano
Medicina Clínica (English Edition).2019; 152(5): e25. CrossRef - Smooth muscle hyperplasia of the epididymis
O Blach, AM Pollock, D Douglas
Journal of Surgical Case Reports.2011; 2011(10): 10. CrossRef
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