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All Communities

  • Syringomyelia

    141 members

    Syringomyelia is a chronic disorder of the spinal cord which consists of the formation of a fluid-filled cyst, also known as a syrinx, in the spinal cord. As the cyst enlarges over tim...

  • Common Variable Immunodeficiency

    238 members

    Under the name of common variable immunodeficiency (CVID) are enclosed a group of disorders of the immune system with different underlying causes but similar symptoms. This syndrome is character...

  • Antisynthetase Syndrome

    203 members

    Antisynthetase syndrome is a rare, chronic, inflammatory autoimmune disorder that affects the muscles and other parts of the body. An autoimmune disorder is one where the body’s own immune...

  • Darier's Disease

    54 members

    Darier disease, also known as keratosis follicularis, is a rare genetic disorder of the skin. It is characterized by skin lesions that consist of thickened, scaly bumps which can be yellow or br...

  • Adrenomyeloneuropathy

    296 members

    Adrenomyeloneuropathy (AMN) is an inherited condition caused by a genetic mutation impairing the ability to metabolize very long-chain fatty acids (VLCFAs). Fatty acids are the buildin...

  • Fibromyalgia

    105 members

    Fibromyalgia is a disorder characterized by the core symptoms of chronic widespread pain, tenderness, fatigue, sleep disturbance, and cognitive disturbance. The severity of each differs between ...

  • Systemic Capillary Leak Syndrome

    395 members

    Systemic Capillary Leak Syndrome (SCLS) is an exceedingly rare, life- and limb-threatening disorder characterized by acute and severe recurrent attacks featuring a rapid fall in blood pressure d...

  • Birdshot Chorioretinopathy

    135 members

    Birdshot Chorioretinopathy is a rare progressive condition characterized by vitritis (inflammation) and multiple ovoid spots, which are typically orange in colour and hypopigmented, in the eye. ...

  • Chromosome 4q Deletion Syndrome

    206 members

    Chromosome 4q Deletion Syndrome is a rare chromosomal disorder where a portion of the 4th chromosome long arm (4q) is deleted. This can occur either in the middle of the chromosome arm (“i...

  • Addison's Disease

    55 members

    Addison´s disease is a rare endocrine or hormonal disorder characterized by a diminished production of hormones by the adrenal glands. The adrenal gl...

  • Dent's Disease

    77 members

    Dent disease is a rare X-linked recessive, chronic kidney condition found almost exclusively in males. The severity of the disease and the specific symptoms can vary. Females, who can be carrier...

  • Adrenoleukodystrophy

    67 members

    Adrenoleukodystrophy is a rare disease characterized by progressive brain damage and failure of the adrenal glands.

  • Muckle-Wells Syndrome

    108 members

    Muckle-Wells syndrome (MWS) is an hereditary autoinflammatory disease with periodic fevers caused by mutations in the NLRP3 gene. It is considered a cryopyrin-associated syndrome (CAPS)...

  • Microduplication 22q11.2 Syndrome

    58 members

    Microduplication 22q11.2 syndrome is caused by an extra copy of a small piece of chromosome 22 at location q11.2.

  • 13q Deletion Syndrome

    51 members

    Chromosome 13q deletion is a rare genetic disorder in which a piece of genetic material from the long arm (q) of one of the two chromosome 13s is missing. The symptoms and severity of the disord...

  • Blastic Plasmacytoid Dendritic Cell Neoplasm

    59 members

    Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare cancer that affects certain cells of the immune system called dendritic cells. The immune system is the natural defense of the body...

  • 15q 26.2 Deletion

    214 members

    15q26 deletion is a genetic condition in which a small piece of DNA (genetic material) is missing from one of the 46 chromosomes, specifically from the q (long arm) of chromosome 15.  Depen...

  • Tarlov Cyst

    72 members

    The spinal cord is a part of the nervous system that extends down the vertebral column. The spinal cord is divided into thirty one segments. From each segment, two sets of nerves emerge that are...

  • Large Granular Lymphocytic Leukemia

    252 members

    Large granular lymphocyte leukemia or LGLL is a rare cancer of a type of white blood cells called lymphocytes. Lymphocytes are part of the immune system, the natural defense of the body that hel...

  • 12q Chromosome Deletion

    56 members

    Each human cell stores its genetic material (DNA) in chromosomes. All normal human cells have 23 pairs of chromosomes with the exception of sperm or egg cells that have 23 single chromosomes. Al...