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A struma ovarii (literally: goitre of the ovary) is a rare form of monodermal teratoma that contains mostly thyroid tissue, which may cause hyperthyroidism. [ 1 ] Despite its name, struma ovarii is not restricted to the ovary.
Cats living in a smoker's household are three times more likely to develop lymphoma. [20] Compared to living in a smoke-free environment, cats exposed to passive smoking also have a greater chance of developing squamous cell carcinoma or mouth cancer. Cancer risk also arises from the cat's grooming habits.
Prognosis again is dependent on the spread of the tumor, as well as how differentiated the tumor appears. The overall prognosis is somewhat worse than for serous or mucinous tumors, and the 5-year survival rate for patients with tumors confined to the ovary is approximately 75%.
A struma ovarii is a rare form of monodermal teratoma that contains mostly thyroid tissue, which leads to hyperthyroidism. Excess iodine consumption notably from algae such as kelp . Thyrotoxicosis can also occur after taking too much thyroid hormone in the form of supplements, such as levothyroxine (a phenomenon known as exogenous ...
Cystadenocarcinoma is a malignant form of a cystadenoma and is a cancer derived from glandular epithelium, in which cystic accumulations of retained secretions are formed.. The neoplastic cells manifest varying degrees of anaplasia and invasiveness, and local extension and metastases oc
Definitive diagnosis of these tumours is based on the histology of tissue obtained in a biopsy or surgical resection. In a retrospective study of 72 cases in children and adolescents, the histology was important to prognosis. [8] A number of molecules have been proposed as markers for this group of tumours.
[2] [3] The staging system for these tumours is the same as for epithelial tumours and most present as stage I. [4] The peak age at which they occur is 50–55 years, but they may occur at any age. Juvenile granulosa cell tumour is a similar but histologically distinct rare tumour. It too occurs in both the ovary and testis.
Sertoli–Leydig cell tumour is a group of tumors composed of variable proportions of Sertoli cells, Leydig cells, and in the case of intermediate and poorly differentiated neoplasms, primitive gonadal stroma and sometimes heterologous elements.