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Ovarian tumours by incidence and risk of ovarian cancer, with adult granulosa cell tumour at right [7] Using next generation DNA sequencing, 97% of adult granulosa cell tumours were found to contain an identical mutation in the FOXL2 gene . This is a somatic mutation, meaning it is not usually transmitted to descendants.
Granulosa cell tumors are the most common sex-cord stromal tumors, making up 70% of cases, and are divided into two histologic subtypes: adult granulosa cell tumors, which develop in women over 50, and juvenile granulosa tumors, which develop before puberty or before the age of 30.
A very rare tumour producing both ovarian (granulosa and/or theca) and testicular (Sertoli and/or Leydig) cells or tissues. Typically it consists of adult-type granulosa cells and Sertoli cells, [4] [5] but it has been reported with juvenile-type granulosa cells. [6] It has been reported to occur in the ovary usually, rarely in the testis. [7]
Meigs syndrome may mimic other conditions, [4] since it is tumor arising from ovaries, pathology of any organs present in the abdomen may show a similar set of symptoms. . These include various gynecological disorders of the uterus such as endometrial tumor, sarcoma, leiomyoma (pseudo-Meigs syndrome); fallopian tube disorders such as hydrosalpinx, granulomatous salpingitis, fallopian tube ...
Granular cell tumor is a tumor that can develop on any skin or mucosal surface, but occurs on the tongue 40% of the time. It is also known as Abrikossoff's tumor , [ 1 ] granular cell myoblastoma , [ 1 ] granular cell nerve sheath tumor , [ 1 ] and granular cell schwannoma . [ 1 ]
Thecomas or theca cell tumors are benign ovarian neoplasms composed only of theca cells. Histogenetically they are classified as sex cord-stromal tumours . They are typically estrogen -producing and they occur in older women (mean age 59; 84% after menopause ).
A granulosa cell or follicular cell is a somatic cell of the sex cord that is closely associated with the developing female gamete (called an oocyte or egg) in the ovary of mammals. Structure and function
Brenner tumors are uncommon surface-epithelial stromal cell tumors in which the epithelial cell (which defines these tumors) is a transitional cell. These are similar in appearance to bladder epithelia. The tumors may be very small to very large, and may be solid or cystic.