| Gonadoblastoma | |
| Classification and external resources | |
| ICD-O: | M9073/1 |
|---|---|
| eMedicine | / |
| MeSH | [1] |
A gonadoblastoma is a complex neoplasm composed of a mixture of gonadal elements,[1] such as large primordial germ cells, immature Sertoli cells or granulosa cells of the sex cord, and gonadal stromal cells.
Contents |
Associations
Gonadoblastoma is most often associated with abnormal chromosomal karyotype, gonadal dysgenesis, and the presence of a Y chromosome in over 90% of cases.
It has been found in association with Turner's syndrome.[2][3]
Classification
Gonadoblastoma is classified as a germ cell tumor.[citation needed]
Formerly, gonadoblastoma was sometimes regarded as a subset of dysgerminoma. In modern literature, it is sometimes considered to progress to dysgerminoma.[4]
Treatment
Standard treatment would include surgical exploration via laparotomy. Laparoscopy may be an option if the surgeon is particularly skilled in removing ovarian neoplasms via laparoscopy intact. If the diagnosis of gonadoblastoma is certain, a bilateral salpingo-oopherectomy (BSO) should be performed to remove both the primary tumor and the dysgenic contralateral ovary. If uninvolved, the uterus should be left intact. Modern reproductive endocrinology technology allows patients post BSO to achieve pregnancy via in-vitro fertilization (IVF) with a donor egg.
References
- ^ Cools M, Stoop H, Kersemaekers AM, et al. (June 2006). "Gonadoblastoma arising in undifferentiated gonadal tissue within dysgenetic gonads". J. Clin. Endocrinol. Metab. 91 (6): 2404–13. doi:. PMID 16608895. http://jcem.endojournals.org/cgi/pmidlookup?view=long&pmid=16608895.
- ^ Maggio MC, Liotta A, De Grazia E, Cimador M, Di Pace R, Corsello G (2007). "Polycystic ovary and gonadoblastoma in Turner's syndrome". Minerva Pediatr. 59 (4): 397–401. PMID 17947845.
- ^ Bianco B, Lipay MV, Melaragno MI, Guedes AD, Verreschi IT (2006). "Detection of hidden Y mosaicism in Turner's syndrome: importance in the prevention of gonadoblastoma". J. Pediatr. Endocrinol. Metab. 19 (9): 1113–7. PMID 17128558.
- ^ Cooper C, Cooper M, Carter J, Russell P (2007). "Gonadoblastoma progressing to dysgerminoma in a 55-year-old woman with normal karyotype". Pathology 39 (2): 284–5. doi:. PMID 17454768.
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