Endometrioid-like yolk sac and Sertoli-Leydig cell tumors in a carrier of a Y heterochromatin insertion into 1qh region: a causal association?
We describe the case of a young woman showing yolk sac tumors (YST) and a Sertoli-Leydig cell tumor (SLCT) in the right ovary, with recurrences in the right adnexum and with hepatic metastasis. To our knowledge, YST and SLCT have never been described as components of the same tumor or reported as associated in the same patient. The patient's karyotype showed the presence of Y chromosome inserted into the 1qh region; the inserted region corresponded to Yq12 heterochromatin. LOH analysis revealed 1p36 paternal allele loss in the proband tumor, thus supporting a germ cell origin for the tumor. The presence of Y heterochromatin in 1qh DNA might induce disturbances in the normal regulation of oncogenes located in 1q.
Sala
Elena
E
Genetic Laboratory, H.S. Gerardo, Monza, Italy.
Villa
Nicoletta
N
Crosti
Francesca
F
Miozzo
Monica
M
Perego
Patrizia
P
Cappellini
Anna
A
Bonazzi
Cristina
C
Barisani
Donatella
D
Dalprà
Leda
L
D018269:Carcinoma, Endometrioid / Q000473:pathology; D002874:Chromosome Mapping / Q000379:methods; D002878:Chromosomes, Human, Pair 1; D041322:Chromosomes, Human, Y; D018240:Endodermal Sinus Tumor / Q000235:genetics / Q000473:pathology*; D005260:Female; D006570:Heterochromatin / Q000235:genetics; D006801:Humans; D017404:In Situ Hybridization, Fluorescence; D007621:Karyotyping; D019656:Loss of Heterozygosity; D010051:Ovarian Neoplasms / Q000235:genetics / Q000473:pathology*; D016324:Sequence Tagged Sites; D018310:Sertoli-Leydig Cell Tumor / Q000235:genetics / Q000473:pathology*; D014178:Translocation, Genetic / Q000235:genetics*
D006570:Heterochromatin