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A micrograph showing yolk sac tumour, with smooth external surface and capsule tears [citation needed] The ovarian yolk sac tumors, also known as endodermal sinus tumors, are accountable for approximately 15.5% of all OGCTs. [8] They have been observed in women particularly in their early ages, and rarely after 40 years of age. [9]
Histologically, yolk sac tumors are characterized by the presence of Schiller-Duval bodies (which are pathognomonic for yolk sac tumors) and a reticular pattern. Yolk sac tumors commonly secrete alpha-fetoprotein and can be immunohistochemically stained for its presence; the level of alpha-fetoprotein in the blood is a useful marker of ...
It is the most common testicular tumor in children under three, [2] and is also known as infantile embryonal carcinoma. This age group has a very good prognosis. In contrast to the pure form typical of infants, adult endodermal sinus tumors are often found in combination with other kinds of germ cell tumor, particularly teratoma and embryonal ...
A dysgerminoma is a type of germ cell tumor; [1] it usually is malignant and usually occurs in the ovary.. A tumor of the identical histology but not occurring in the ovary may be described by an alternate name: seminoma in the testis [2] or germinoma in the central nervous system or other parts of the body.
Tumor of the ovary vary remarkably as they may arise from any of the 3 cell types of the normal ovary. Ovarian tumors are classified according to the histology of the tumor, obtained in a pathology report. Histology dictates many aspects of clinical treatment, management, and prognosis. The most common forms are:
The 1997 International Germ Cell Consensus Classification [17] is a tool for estimating the risk of relapse after treatment of malignant germ-cell tumor. A small study of ovarian tumors in girls [18] reports a correlation between cystic and benign tumors, and conversely, solid and malignant tumors. Because the cystic extent of a tumor can be ...
Ovarian germ cell tumors: Benign [39] Dysgerminoma: Typically occurs in young women between the ages of 10–30 years of age [40] Choriocarcinoma: Can occur without gynecological symptoms [41] Yolk sac tumor: Malignant. Occurs in young children [42] Teratoma: Very rare. Often occurs in newborns [medical citation needed] Ovarian serous ...
They are pathognomonic for granulosa cell tumors. Histologically, these tumors consists of monotonous islands of granulosa cells with "coffee-bean" nuclei. That same nuclear groove appearance noted in Brenner tumour , an epithelial-stromal ovarian tumor distinguishable by nests of transitional epithelial cells (urothelial) with longitudinal ...