Identification of uromodulin deposition in the stroma of perinephric fibromyxoid nephrogenic adenoma by mass spectrometry
© 2024 Japanese Society of Pathology and John Wiley & Sons Australia, Ltd..
Nephrogenic adenoma (NA) is an epithelial lesion that usually occurs in the mucosa of the urinary tract. Rare cases of deep infiltrative or perinephric lesions have also been reported. Recently, NA with characteristic fibromyxoid stroma (fibromyxoid NA) has been proposed as a distinct variant. Although shedding of distal renal tubular cells due to urinary tract rupture has been postulated as the cause of NA in general, the mechanism underlying extraurinary presentation of NA and fibromyxoid stromal change in fibromyxoid NA remains unknown. In this study, we performed mass spectrometry (MS) analysis in a case of perinephric fibromyxoid NA of an 82-year-old man who underwent right nephroureterectomy for distal ureteral cancer. The patient had no prior history of urinary tract injury or radiation. Periodic acid-Schiff staining-positive eosinophilic structureless deposits in the stroma of fibromyxoid NA were microdissected and subjected to liquid chromatography/MS. The analysis revealed the presence of a substantial amount of uromodulin (Tamm-Horsfall protein). The presence of urinary content in the stroma of perinephric fibromyxoid NA suggests that urinary tract rupture and engraftment of renal tubular epithelial cells directly cause the lesion.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:74 |
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| Enthalten in: |
Pathology international - 74(2024), 4 vom: 30. Apr., Seite 187-196 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Yoshimura, Kaori [VerfasserIn] |
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| Links: |
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| Themen: |
Case Reports |
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| Anmerkungen: |
Date Completed 11.04.2024 Date Revised 11.04.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1111/pin.13409 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Nephrogenic adenoma (NA) is an epithelial lesion that usually occurs in the mucosa of the urinary tract. Rare cases of deep infiltrative or perinephric lesions have also been reported. Recently, NA with characteristic fibromyxoid stroma (fibromyxoid NA) has been proposed as a distinct variant. Although shedding of distal renal tubular cells due to urinary tract rupture has been postulated as the cause of NA in general, the mechanism underlying extraurinary presentation of NA and fibromyxoid stromal change in fibromyxoid NA remains unknown. In this study, we performed mass spectrometry (MS) analysis in a case of perinephric fibromyxoid NA of an 82-year-old man who underwent right nephroureterectomy for distal ureteral cancer. The patient had no prior history of urinary tract injury or radiation. Periodic acid-Schiff staining-positive eosinophilic structureless deposits in the stroma of fibromyxoid NA were microdissected and subjected to liquid chromatography/MS. The analysis revealed the presence of a substantial amount of uromodulin (Tamm-Horsfall protein). The presence of urinary content in the stroma of perinephric fibromyxoid NA suggests that urinary tract rupture and engraftment of renal tubular epithelial cells directly cause the lesion | ||
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| 700 | 1 | |a Shintani-Domoto, Yukako |e verfasserin |4 aut | |
| 700 | 1 | |a Shigehara, Kazuyoshi |e verfasserin |4 aut | |
| 700 | 1 | |a Oshima, Hiroko |e verfasserin |4 aut | |
| 700 | 1 | |a Oshima, Masanobu |e verfasserin |4 aut | |
| 700 | 1 | |a Goto, Akiteru |e verfasserin |4 aut | |
| 700 | 1 | |a Nojima, Takayuki |e verfasserin |4 aut | |
| 700 | 1 | |a Tsuzuki, Toyonori |e verfasserin |4 aut | |
| 700 | 1 | |a Mizokami, Atsushi |e verfasserin |4 aut | |
| 700 | 1 | |a Ikeda, Hiroko |e verfasserin |4 aut | |
| 700 | 1 | |a Maeda, Daichi |e verfasserin |4 aut | |
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