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What are the aetiology of cataract?
The exact cause of cataracts is not known, but several factors may contribute to their development, including: - Aging: As we age, the proteins in the lens of the eye can clump together, causing the lens to become cloudy. - Ultraviolet radiation: Exposure to UV radiation from the sun or other sourceRead more
The exact cause of cataracts is not known, but several factors may contribute to their development, including:
– Aging: As we age, the proteins in the lens of the eye can clump together, causing the lens to become cloudy.
See less– Ultraviolet radiation: Exposure to UV radiation from the sun or other sources can damage the proteins in the lens of the eye, leading to cataract formation.
– Medical conditions: Certain medical conditions, such as diabetes, can increase the risk of developing cataracts.
– Medications: Long-term use of certain medications, such as corticosteroids, can increase the risk of cataract formation.
– Lifestyle factors: Smoking and excessive alcohol consumption have been linked to an increased risk of cataracts.
– Genetics: Some types of cataracts, such as congenital cataracts, may be inherited.
What are the different types of cataract?
A cataract is a clouding of the natural lens of the eye, which can result in blurry or dim vision. There are several types of cataracts, including: 1. Nuclear cataracts: This type of cataract forms in the center of the lens and is commonly associated with aging. 2. Cortical cataracts: This type of cRead more
A cataract is a clouding of the natural lens of the eye, which can result in blurry or dim vision. There are several types of cataracts, including:
1. Nuclear cataracts: This type of cataract forms in the center of the lens and is commonly associated with aging.
See less2. Cortical cataracts: This type of cataract forms in the outer layer of the lens and is characterized by white, wedge-shaped opacities that start at the edge of the lens and work their way to the center.
3. Posterior subcapsular cataracts: This type of cataract forms at the back of the lens and is more common in people with diabetes or those taking high doses of steroid medications.
4. Congenital cataracts: This type of cataract is present at birth or develops during childhood. It may be caused by genetic factors or intrauterine infection.
What are the different types of otitis media?
There are several types of otitis media, including: 1. Acute otitis media (AOM): This is the most common type of otitis media and is characterized by the sudden onset of symptoms such as ear pain, fever, and irritability. It is usually caused by a bacterial or viral infection. 2. Otitis media with eRead more
There are several types of otitis media, including:
1. Acute otitis media (AOM): This is the most common type of otitis media and is characterized by the sudden onset of symptoms such as ear pain, fever, and irritability. It is usually caused by a bacterial or viral infection.
See less2. Otitis media with effusion (OME): This type of otitis media occurs when fluid builds up in the middle ear without any signs of infection. It can occur after an episode of AOM or on its own. Symptoms may include difficulty hearing and a feeling of fullness in the ear.
3. Chronic otitis media with effusion (COME): This type of otitis media occurs when fluid remains in the middle ear for a prolonged period of time or returns repeatedly, even without infection. It can result in hearing loss and may require treatment to prevent long-term damage to the ear.
4. Chronic suppurative otitis media (CSOM): This type of otitis media is characterized by a persistent or recurrent discharge from the ear due to a perforated eardrum. It can result in hearing loss and may require surgical treatment.
Define otitis media?
Otitis media is an inflammation of the middle ear, which is the air-filled space behind the eardrum that contains the tiny vibrating bones of the ear. It is often caused by infection and can result in fluid buildup in the middle ear. This condition is common in children, but can also occur in adultsRead more
Otitis media is an inflammation of the middle ear, which is the air-filled space behind the eardrum that contains the tiny vibrating bones of the ear. It is often caused by infection and can result in fluid buildup in the middle ear. This condition is common in children, but can also occur in adults. Symptoms may include ear pain, difficulty hearing, fever, and irritability. Treatment may include antibiotics, pain relievers, and sometimes drainage of fluid from the middle ear.
See lessWhat are the risk factors of Ca of breast?
There are several risk factors for breast cancer, including: - Being a woman - Getting older - Inherited genetic mutations, such as BRCA1 and BRCA2 - Family history of breast or ovarian cancer - Personal history of breast cancer or certain non-cancerous breast diseases - Hormonal changes - LifestyleRead more
There are several risk factors for breast cancer, including:
– Being a woman
– Getting older
– Inherited genetic mutations, such as BRCA1 and BRCA2
– Family history of breast or ovarian cancer
– Personal history of breast cancer or certain non-cancerous breast diseases
– Hormonal changes
– Lifestyle, including excess alcohol consumption
– Environmental factors, including exposure to radiation
– Obesity and being overweight
– Menarche: having periods at a younger age and menopause at an older age
– Pregnancy: Becoming pregnant at an older age or never being pregnant
– Hormone use, including long-term contraceptive use or postmenopausal hormone therapy
It is important to note that having one or more risk factors does not mean that you will develop breast cancer. Also, some people who have no known risk factors may still develop the disease. If you have breast cancer risk factors, talk with your doctor about ways you can lower your risk and about screening for breast cancer.
See lessWhat are the investigations of Ca of breast?
To diagnose breast cancer, a healthcare provider may perform several tests, including: - A mammogram (breast x-ray) - An ultrasound scan (using sound waves to produce an image) - A core biopsy (using a hollow needle to take a sample of breast tissue to be looked at under a microscope) - A fine needlRead more
To diagnose breast cancer, a healthcare provider may perform several tests, including:
– A mammogram (breast x-ray)
– An ultrasound scan (using sound waves to produce an image)
– A core biopsy (using a hollow needle to take a sample of breast tissue to be looked at under a microscope)
– A fine needle aspiration (FNA) (using a fine needle and syringe to take a sample of cells to be looked at under a microscope)
If breast cancer is diagnosed, other tests may be done to find out if cancer cells have spread within the breast or to other parts of the body. This process is called staging. The stage of breast cancer helps determine the best treatment options.
See lessWhat are the different stages of breast cancer?
Breast cancer is staged based on the size of the tumor, whether it has spread to nearby lymph nodes, and whether it has spread to other parts of the body. The stages of breast cancer are: - Stage 0: Non-invasive ductal carcinoma in situ (DCIS), where abnormal cells are confined to the breast ducts.Read more
Breast cancer is staged based on the size of the tumor, whether it has spread to nearby lymph nodes, and whether it has spread to other parts of the body. The stages of breast cancer are:
– Stage 0: Non-invasive ductal carcinoma in situ (DCIS), where abnormal cells are confined to the breast ducts.
See less– Stage I: Invasive breast cancer that is small (less than 2 cm) and has not spread to the lymph nodes.
– Stage II: Invasive breast cancer that is either larger than 2 cm or has spread to the nearby lymph nodes.
– Stage III: Invasive breast cancer that is either very large, has spread to many lymph nodes, or has invaded the chest wall or skin.
– Stage IV: Invasive breast cancer that has spread to distant organs, such as the lungs, liver, bones, or brain. This is also called metastatic breast cancer.
How breast cancer spread?
Breast cancer can spread in several ways. It can spread from the breast into surrounding areas, such as the lymph nodes under the arm or near the collarbone. Cancer cells can also travel through the bloodstream or lymphatic system to other parts of the body. Once breast cancer cells reach a new areaRead more
Breast cancer can spread in several ways. It can spread from the breast into surrounding areas, such as the lymph nodes under the arm or near the collarbone. Cancer cells can also travel through the bloodstream or lymphatic system to other parts of the body.
Once breast cancer cells reach a new area of the body, they can continue to grow and form a new tumor. This is known as metastasis. Breast cancer most commonly spreads to the bones, lungs, liver, and brain.
See lessWhat are the investigations of fibroadenosis?
Fibroadenosis, also known as fibrocystic breast disease, is a benign growth abnormality of the breast. To diagnose fibroadenomas, a healthcare provider may perform several tests, including: 1. A mammogram (breast x-ray) 2. An ultrasound scan (using sound waves to produce an image) 3. A core biopsy (Read more
Fibroadenosis, also known as fibrocystic breast disease, is a benign growth abnormality of the breast. To diagnose fibroadenomas, a healthcare provider may perform several tests, including:
1. A mammogram (breast x-ray)
See less2. An ultrasound scan (using sound waves to produce an image)
3. A core biopsy (using a hollow needle to take a sample of breast tissue to be looked at under a microscope)
4. A fine needle aspiration (FNA) (using a fine needle and syringe to take a sample of cells to be looked at under a microscope)
What are the common causes of fibroadenosis?
Fibroadenosis, also known as fibrocystic disease, is the most common cause of breast lumps in women of reproductive age. The exact cause of fibroadenomas is unknown, but it is thought to be due to a disordered or imbalanced response to endogenous sex hormones. It may be related to the hormone-receptRead more
Fibroadenosis, also known as fibrocystic disease, is the most common cause of breast lumps in women of reproductive age. The exact cause of fibroadenomas is unknown, but it is thought to be due to a disordered or imbalanced response to endogenous sex hormones. It may be related to the hormone-receptor mechanisms and increased sensitivity to the hormone estrogen.
See less