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Yellow Nail Syndrome

Yellow Nail Syndrome Overview What is yellow nail syndrome? Yellow nail syndrome is a rare condition that affects your nails, lungs and limbs. People with yellow nail syndrome get yellow, curved nails that may thicken or fall off. They also may have respiratory symptoms, such as a chronic cough, and usually have swollen lower legs or ankles. Experts don’t know what causes yellow nail syndrome. But it may be linked to improper circulation, issues with lymphatic drainage or buildup of fluid around your lungs. You may also have a higher risk if you have one of a few specific chronic diseases, dental implants or a joint replacement. Who might get yellow nail syndrome? Yellow nail syndrome develops most often in adults over 50. More rarely, yellow nail syndrome sometimes occurs in children. Some reports show higher rates of yellow nail syndrome in people with: Autoimmune diseases. Cancer. Nephrotic syndrome. Rheumatoid arthritis (RA). Thyroid disease. Symptoms What are the symptoms of yello...
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Progressive myoclonic epilepsy type 1

Progressive myoclonic epilepsy type 1  Overview Progressive myoclonic epilepsy type 1 (EPM1 or Unverricht-Lundborg disease) is a rare autosomal recessive neurodegenerative disorder, often considered the most common progressive myoclonic epilepsy, characterized by stimulus-sensitive myoclonus and seizures starting between ages 6–16. Caused by mutations in the CSTB gene, it features progressive worsening of muscle jerks, ataxia, and mild cognitive decline, with treatment focusing on managing symptoms through medication. Symptoms Action Myoclonus: The hallmark symptom, featuring involuntary muscle jerks triggered by movement, light, or stress, often leading to disability. Seizures: Generalized tonic-clonic seizures are common, usually appearing early but often responding to medication. Progressive Neurological Decline: Symptoms worsen over time, including ataxia (lack of coordination), intentional tremors, and dysarthria. Age of Onset: Symptoms generally begin between 6 and 15 yea...
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Xeroderma Pigmentosum (XP)

Xeroderma Pigmentosum (XP) Overview Xeroderma pigmentosum (XP) is a rare genetic disorder that causes hypersensitivity to ultraviolet (UV) light. Symptoms usually affect the parts of your body that are regularly exposed to the sun, such as your face, arms and lips. People with XP usually start showing symptoms in early childhood. They may get blistering sunburns after even just a few minutes in the sun. How does xeroderma pigmentosum affect my body? People with XP develop sunburns easily and have a higher risk of skin cancer. Compared to those with average risk, people with XP have: 10,000 times higher risk of developing nonmelanoma skin cancer, such as basal cell carcinoma or squamous cell carcinoma. 2,000 times higher risk of developing melanoma. Some reports have also found that people with XP are more likely to develop cancers such as: Astrocytoma. Breast cancer. Glioblastoma. Kidney cancer. Leukemia. Lung cancer. Pancreatic cancer. Stomach cancer. Testicular cancer. Thyroid cancer...
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Bosma Arhinia Microphthalmia Syndrome

Bosma Arhinia Microphthalmia Syndrome Overview Bosma arhinia microphthalmia (BAM) syndrome is an extremely rare genetic disorder defined by three major features: 1) complete absence of the nose (arhinia) 2) eye abnormalities and 3) lack of typical sexual development during puberty (absent sexual maturation).   The specific symptoms and severity of the disorder can vary from one person to another. For example, eye problems can range from absent tear ducts (the small tubes that carry tears from the eyes to the nose) to very small eyes and/or blindness.   In males, BAM syndrome may cause underdeveloped genitalia at birth, including a small penis and/or testes that do not descend properly into the scrotum. In females, reproductive differences are usually not noticeable until adolescence when she does not develop breasts or have menstrual periods.   The only known genetic cause of BAM syndrome is a change (variant) in the SMCHD1 gene. In most cases, this genetic...
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X-linked spastic paraplegia (XLSP)

X-linked spastic paraplegia (XLSP) Overview X-linked spastic paraplegia (XLSP) is a rare genetic disorder characterized by progressive muscle stiffness (spasticity) and weakness, primarily affecting the legs. Often inherited in an X-linked recessive pattern, it typically impacts males, resulting in a "pure" (lower limb only) or "complicated" form (including cognitive impairment, ataxia, or neuropathy). Symptoms  Progressive Spasticity: Increased muscle tone causing extreme stiffness in the lower limbs, often resulting in a stiff, jerky gait. Weakness & Walking Difficulties: Gradual weakness makes climbing stairs, walking, or standing difficult, often leading to using walking aids. Spastic Paraplegia Type 2 (SPG2): In addition to leg symptoms, this form can include involuntary eye movements (nystagmus), ataxia (lack of coordination), and mental decline. Spastic Paraplegia Type 16 (SPG16): Often involves delayed motor development, inability to walk, and speech di...
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Neurofibromatosis type 2 (NF2)

Neurofibromatosis type 2 (NF2) Overview Neurofibromatosis type 2 (NF2), also known as NF2-related schwannomatosis, is a rare genetic disorder characterized by noncancerous (benign) tumors, particularly bilateral vestibular schwannomas affecting hearing and balance. Caused by a mutation in the NF2 gene on chromosome 22, it leads to tumors on cranial/spinal nerves (meningiomas, ependymomas). Symptoms typically appear in adolescence or early adulthood, including hearing loss, tinnitus, and balance issues Symptoms Primary Symptoms (Vestibular Schwannomas) Hearing loss: Usually affects both ears and is often the first sign, starting early in life. Tinnitus: A persistent ringing or buzzing sound in the ears. Balance problems: Vertigo and instability, causing difficulty with balance or walking.  Other Neurological and Physical Symptoms Facial weakness/numbness: Caused by tumors pressing on facial nerves. Headaches: Frequent headaches. Muscle weakness/numbness: Weakness or numbness in...
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Sarcopenia

Sarcopenia overview Sarcopenia is the gradual loss of muscle mass, strength and physical performance that happens with age. It affects your musculoskeletal system and can make everyday tasks — like climbing stairs or getting out of a chair — harder over time. As your muscles weaken, your risk of falls, fractures and loss of independence goes up. The definition of sarcopenia (pronounced “sar-ko-PEE-nee-uh”) focuses on how muscle loss affects your strength and ability to function. Experts generally define it using one or more key features: Low muscle mass Low muscle strength Low physical performance In some cases, sarcopenia occurs along with a higher body mass index (BMI). This combination, called sarcopenic obesity, can raise your risk of complications more than obesity or sarcopenia alone. In 2016, sarcopenia was recognized as a specific disease with an ICD-10-CM code. This step helped distinguish sarcopenia from other conditions that cause muscle loss and made it a reportable diagnos...
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