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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.
Aging in cats is the process by which cats change over the course of their natural lifespans. The normal lifespan of domestic cats is in the range of 13 to 20 years. As cats senesce, they undergo predictable changes in health and behavior. Dental disease and loss of olfaction are common as cats age, affecting eating habits.
M9090/0 Struma ovarii, NOS M9090/3 Struma ovarii, malignant M9091/1 Strumal carcinoid Struma ovarii and carcinoid; 910 Trophoblastic neoplasms.
Cancer in cats is the leading cause of death among cats. It is caused by uncontrolled cell growth, and affects a wide range of cell types and organs in the body. It is caused by uncontrolled cell growth, and affects a wide range of cell types and organs in the body.
[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.
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 ...
A retrospective study of 83 women with sex cord–stromal tumours (73 with granulosa cell tumour and 10 with Sertoli-Leydig cell tumour), all diagnosed between 1975 and 2003, reported that survival was higher with age under 50, smaller tumour size, and absence of residual disease.
Evidence suggests that middle-aged cats and dogs, especially those between the ages of 5 and 10, may be at an increased risk of obesity. [11] This is supported by studies showing that as cats age from 2 years to approximately 11.5 years of age their energy requirements decrease. [12]