Journals / Ege Tıp Dergisi / 2007 / Cilt: 46 - Sayı: 2

Intratubular germ cell neplasia accompanying germ cell tumors

Germ hücreli tümörlere eşlik eden intratübüler germ hücre neoplazisi

Pages
73–77
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

It is concluded that intratubular germ cell neoplasia is present in most invasive germ cell tumors and the periodic-acid Schiff - diastase and placental alkaline phosphatase stains are useful in detecting intratubuler germ cell neoplasia.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Intratubular germ cell neoplasia is considered a preinvasive stage of testicular germ cell malignancy because of its association with invasive germ cell tumors.
📊
Key Findings & Data:In this study, the frequency of intratubular germ cell neoplasia in testicular germ cell tumors and immunohistochemical stains for p53, placental alkaline phosphatase and histochemical stains for periodic-acid Schiff (PAS)- diastase and argyrophilic nucleolar organizer regions were evaluated. 69 of 158 testicular germ cell tumors, residual seminiferous tubules were found at the periphery of the invasive neoplastic foci.
💡
Conclusion & Impact:It is concluded that intratubular germ cell neoplasia is present in most invasive germ cell tumors and the periodic-acid Schiff - diastase and placental alkaline phosphatase stains are useful in detecting intratubuler germ cell neoplasia.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Testis neoplazmları · Tümör baskılayıcı protein p53 · Alkalin fosfataz

Abstract

Intratubular germ cell neoplasia is considered a preinvasive stage of testicular germ cell malignancy because of its association with invasive germ cell tumors. In this study, the frequency of intratubular germ cell neoplasia in testicular germ cell tumors and immunohistochemical stains for p53, placental alkaline phosphatase and histochemical stains for periodic-acid Schiff (PAS)- diastase and argyrophilic nucleolar organizer regions were evaluated. 69 of 158 testicular germ cell tumors, residual seminiferous tubules were found at the periphery of the invasive neoplastic foci. Intratubular germ cell neoplasia was detected histomorphologicaly in 65 cases. Neoplastic intratubuler germ cells were reactive with placental alkaline phosphatase and positive for glicogene with periodic-acid Schiff - diastase stain in 63 (%96.9) of these cases. In 48 cases (%69), atypical germ cells were rective with p53. Argyrophilic nucleolar organizer regions count for the 63 cases which have intratubuler germ cell neoplasia was 5.83. It is concluded that intratubular germ cell neoplasia is present in most invasive germ cell tumors and the periodic-acid Schiff - diastase and placental alkaline phosphatase stains are useful in detecting intratubuler germ cell neoplasia.

Özet

İntratübüler germ hücre neoplazisi, invaziv germ hücreli tümörlerle birlikteliğinden dolayı, testiküler germ hücreli malignensilerin preinvaziv dönemi olarak kabul edilir. Bu çalışmada, 158 testiküler germ hücreli tümörde, intratübüler germ hücreli neoplazi sıklığı, p53 ve plasental alkalen fosfataz immunohistokimyasal boyamaları, periodik-asid Schiff - diastaz ve arjirofilik nükleoler organize bölge histokimyasal boyamaları ile değerlendirildi. 158 testiküler germ hücreli tümörün 69’ unda, invaziv neoplastik odakların periferinde rezidüel seminifer tübüller bulundu. 65 olguda histomorfolojik olarak intratübüler germ hücre neoplazisi görüldü. 65 olgunun 63’ ünde (%96.9) , neoplastik intratübüler germ hücreleri plasental alkalen fosfataz ve periodik-asid Schiff (PAS) - diastaz ile glikojen lehine boyanma gösterdi. 48 (%73.8) olguda, atipik germ hücrelerinde p53 ile boyanma görüldü. PLAP ve PAS-diastaz boyama yöntemleri arasında istatiksel olarak %100 anlamlı uyum saptandı (p<0.01). İntratübüler germ hücreli neoplazi saptanan olgularda ortalama arjirofilik nükleoler organize bölge değeri 5.83 olarak hesaplandı. Çoğu invaziv germ hücreli tümörde intratübüler germ hücreli neoplazinin bulunduğu ve periodikasid Schiff -diastaz ve plasental alkalen fosfataz boyamalarının intratübüler germ hücreli neoplazinin tesbitinde faydalı olduğu sonucuna varıldı.

🔖

Cite This Article

BİLİR, G., ÇAKIR, E., BENZER, E., PAK, I., KEBAT, T., ARDIÇ, F. (2007). Intratubular germ cell neplasia accompanying germ cell tumors. Ege Tıp Dergisi, Cilt: 46 - Sayı: 2, 73–77. https://ajindex.com/articles/221295

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (15)

  1. Giwecman A, Muller RJ, Skakkebaek NE. Carcinoma in situ of the undescended testis. Semin Urol 1988; 6: 110-119
  2. Montironi R. Intratubuler germ cell neoplasia of the testis: testicular intraepithelial neoplasia. Eur Urol 2002 Jun; 41(6): 651-4
  3. Skakkebaek NE. Possible carcinoma in situ of the testis. Lancet 1972; 2: 516-517
  4. Ulbright TM, Amin MB, Young RH. Tumors of the testis, adnexa, spermatic cord and scrotum. In: Atlas of tumor pathology. Third series. Fascicle 25. Washington (DC): AFIP. 1999; p. 41-58
  5. Coffin CM, Ewing S, Dehner LP. Frequency of ıntratubular germ cell neoplasia with invasive testicular germ cell tumors. Arch Pathol Lab Med 1985; 109 (6): 555-559
  6. Manivel JC, Simonton S, Wold LE, et al. Absence of intratubular germ cell neoplasia in testicular yolk sac tumors in children. Arch Pathol Lab Med 1988; 112: 641-645
  7. Stamp IM, Barlebo H, Rix M, et al. Intratubular germ cell neoplasia in an infantile testis with immature teratoma. Histopathology 1993; 22: 69-72
  8. Cassio A, Cacciari E, D’Errico A, et al. Incıdence of intratubular germ cell neoplasia in androgen insensitivity syndrome. Acta Endocrinol 1990; 123: 416-422
  9. Müller J, Skakkebaek NE, Nielsen OH, et al. Cryptorchidism and testis cancer: atypical infantile germ cells followed by carcinoma in situ and invasive carcinoma in adulthood. Cancer 1984; 54: 629- 634
  10. Hustin J, Collette J, Franchimont P. İmmunohistochemical demonstration of placental alkaline phosphatase in various states of testicular development and in germ cell tumors. Int J Androl 1987; 10: 29-35
  11. Izquirdo M, Van Der Valk P, Van Ark-Otte J. Differential expression of the c-kit proto-oncogene in germ cell tumors. J Pathol 1995; 177: 253-258
  12. Jones TD, Ulbright TM, Eble JN, et al. OCT4 A sensitive and specific biomarker for intratubuler germ cell neoplasia of the testis. Clinical Cancer Research 2004; 10: 8544-47
  13. Soosay GN, Bobrow L, Happerfield L, et al. Morphology and immunohistochemistry of carcinoma in situ adjacent to testicular germ cell tumors in adults and children: implications for histogenesis. Histopathology 1991; 19: 537-544
  14. Koide O, Iwai S, Baba K, et al. Identification of testicular atypical germ cells by an immunohistochemical technique for placental alkaline phosphatase. Cancer 1987; 60: 1325-1330
  15. Hawkins E, Heifetz SA, Giller R, et al. The prepubertal testis (prenatal and postnatal): Its relationship to ıntratubular germ cell neoplasia: A combined pediatr