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Items: 15

1.

Familial Mediterranean fever

Familial Mediterranean fever (FMF) is divided into two phenotypes: type 1 and type 2. FMF type 1 is characterized by recurrent short episodes of inflammation and serositis including fever, peritonitis, synovitis, pleuritis, and, rarely, pericarditis and meningitis. The symptoms and severity vary among affected individuals, sometimes even among members of the same family. Amyloidosis, which can lead to renal failure, is the most severe complication, if untreated. FMF type 2 is characterized by amyloidosis as the first clinical manifestation of FMF in an otherwise asymptomatic individual. [from GeneReviews]

MedGen UID:
45811
Concept ID:
C0031069
Disease or Syndrome
2.

Crohn disease-associated growth failure, susceptibility to

MedGen UID:
436348
Concept ID:
C2675113
Finding
3.

Autoimmune lymphoproliferative syndrome due to CTLA4 haploinsufficiency

Immune dysregulation with autoimmunity, immunodeficiency, and lymphoproliferation (IDAIL) is an autosomal dominant complex immune disorder with highly variable presentation and clinical manifestations. Prominent features include recurrent infections often associated with hypogammaglobulinemia, autoimmune features such as autoimmune cytopenias, and abnormal lymphocytic infiltration of nonlymphoid organs, including the lungs, brain, and gastrointestinal tract, resulting in enteropathy. Laboratory studies often show lymphopenia and abnormal T and B cell subsets. The variable features are a result of impaired function of Treg cells, which play a role in immune homeostasis (summary by Kuehn et al., 2014; Schwab et al., 2018, and Lopez-Nevado et al., 2021). The disorder shows overlapping features with autoimmune lymphoproliferative syndrome (ALPS); for a general description and a discussion of genetic heterogeneity of ALPS, see 601859. [from OMIM]

MedGen UID:
863651
Concept ID:
C4015214
Disease or Syndrome
4.

IL21-related infantile inflammatory bowel disease

A rare autosomal recessive primary immunodeficiency characterized by infancy onset of severe inflammatory bowel disease with life-threatening diarrhea and failure to thrive, oral aphthous ulcers, and recurrent severe upper and lower respiratory tract infections with finger clubbing. Laboratory examination reveals increased IgE and decreased IgG levels, as well as reduced numbers of circulating CD19+ B-cells including IgM+ naive and class-switched IgG memory B-cells, with a concomitant increase in transitional B-cells, while T-cell numbers and function are normal. [from SNOMEDCT_US]

MedGen UID:
1799211
Concept ID:
C5567788
Disease or Syndrome
5.

Inflammatory bowel disease 28

An autosomal recessive condition caused by mutation(s) in the IL10RA gene, encoding interleukin-10 receptor subunit alpha. It is characterized by early-onset chronic relapsing intestinal inflammation. [from NCI]

MedGen UID:
442630
Concept ID:
C2751053
Disease or Syndrome
6.

Congenital diarrhea 6

Diarrhea-6 is a relatively mild, early-onset chronic diarrhea that may be associated with increased susceptibility to inflammatory bowel disease, small bowel obstruction, and esophagitis (Fiskerstrand et al., 2012). For a discussion of genetic heterogeneity of diarrhea, see DIAR1 (214700). [from OMIM]

MedGen UID:
766184
Concept ID:
C3553270
Disease or Syndrome
7.

Immunodeficiency 60

Immunodeficiency-60 and autoimmunity (IMD60) is an autosomal dominant primary immunologic disorder characterized by inflammatory bowel disease and recurrent sinopulmonary infections. The age at symptom onset is highly variable, ranging from infancy to mid-adulthood. Laboratory studies show dysregulation of both B and T cells, with variably decreased immunoglobulin production, decreased T-regulatory cells, and overall impaired lymphocyte maturation (summary by Afzali et al., 2017). [from OMIM]

MedGen UID:
1681890
Concept ID:
C5193072
Disease or Syndrome
8.

Granulomatous disease, chronic, autosomal recessive, 5

Chronic granulomatous disease (CGD) is a primary immunodeficiency disorder of phagocytes (neutrophils, monocytes, macrophages, and eosinophils) resulting from impaired killing of bacteria and fungi. CGD is characterized by severe recurrent bacterial and fungal infections and dysregulated inflammatory responses resulting in granuloma formation and other inflammatory disorders such as colitis. Infections typically involve the lung (pneumonia), lymph nodes (lymphadenitis), liver (abscess), bone (osteomyelitis), and skin (abscesses or cellulitis). Granulomas typically involve the genitourinary system (bladder) and gastrointestinal tract (often the pylorus initially, and later the esophagus, jejunum, ileum, cecum, rectum, and perirectal area). Some males with X-linked CGD have McLeod neuroacanthocytosis syndrome as the result of a contiguous gene deletion. While CGD may present anytime from infancy to late adulthood, the vast majority of affected individuals are diagnosed before age five years. Use of antimicrobial prophylaxis and therapy has greatly improved overall survival. [from GeneReviews]

MedGen UID:
1710326
Concept ID:
C5394542
Disease or Syndrome
9.

Spastic paraplegia 84, autosomal recessive

PI4KA-related disorder is a clinically variable disorder characterized primarily by neurologic dysfunction (limb spasticity, developmental delay, intellectual disability, seizures, ataxia, nystagmus), gastrointestinal manifestations (multiple intestinal atresia, inflammatory bowel disease), and combined immunodeficiency (leukopenia, variable immunoglobulin defects). Age of onset is typically antenatal or in early childhood; individuals can present with any combination of these features. Rare individuals present with later-onset hereditary spastic paraplegia. Brain MRI findings can include hypomyelinating leukodystrophy, cerebellar hypoplasia/atrophy, thin or dysplastic corpus callosum, and/or perisylvian polymicrogyria. [from GeneReviews]

MedGen UID:
1794235
Concept ID:
C5562025
Disease or Syndrome
10.

Inflammatory bowel disease 29

Inflammatory bowel disease is a chronic inflammatory condition of the gastrointestinal tract (summary by Mohanan et al., 2018). For a general description and a discussion of genetic heterogeneity of inflammatory bowel disease, including Crohn disease (CD) and ulcerative colitis (UC), see IBD1 (266600). [from OMIM]

MedGen UID:
1648318
Concept ID:
C4748083
Disease or Syndrome
11.

Immunodeficiency 93 and hypertrophic cardiomyopathy

Immunodeficiency-93 and hypertrophic cardiomyopathy (IMD93) is an autosomal recessive disorder characterized by onset of recurrent viral and bacterial infections, particularly with encapsulated bacteria, and hypertrophic cardiomyopathy in the first months or years of life. Immunologic workup typically shows decreased circulating B cells and hypo- or agammaglobulinemia, sometimes with neutropenia or T-cell lymphocytosis, although laboratory findings may be variable among patients. Ig replacement therapy is beneficial. Cardiac involvement can also include atrial septal defect, valvular insufficiency, and pre-excitation syndrome. Rare myopathic or neurologic involvement has been reported, but these features are not consistently part of the disorder and may be related to other genetic defects (summary by Niehues et al., 2020 and Saettini et al., 2021). [from OMIM]

MedGen UID:
1804175
Concept ID:
C5676899
Disease or Syndrome
12.

Immunodeficiency 82 with systemic inflammation

Immunodeficiency-82 with systemic inflammation (IMD82) is a complex autosomal dominant immunologic disorder characterized by recurrent infections with various organisms, as well as noninfectious inflammation manifest as lymphocytic organ infiltration with gastritis, colitis, and lung, liver, CNS, or skin disease. One of the more common features is inflammation of the stomach and bowel. Most patients develop symptoms in infancy or early childhood; the severity is variable. There may be accompanying fever, elevated white blood cell count, decreased B cells, hypogammaglobulinemia, increased C-reactive protein (CRP; 123260), and a generalized hyperinflammatory state. Immunologic workup shows variable B- and T-cell abnormalities such as skewed subgroups. Patients have a propensity for the development of lymphoma, usually in adulthood. At the molecular level, the disorder results from a gain-of-function mutation that leads to constitutive and enhanced activation of the intracellular inflammatory signaling pathway. Treatment with SYK inhibitors rescued human cell abnormalities and resulted in clinical improvement in mice (Wang et al., 2021). [from OMIM]

MedGen UID:
1781752
Concept ID:
C5543581
Disease or Syndrome
13.

Autoinflammatory disease, multisystem, with immune dysregulation, X-linked

X-linked multisystem autoinflammatory disease with immune dysregulation (ADMIDX) is an X-linked recessive disorder with onset of symptoms in infancy or early childhood. Affected individuals may present with variable cytopenias, including anemia, thrombocytopenia, neutropenia, lymphopenia, or hypogammaglobulinemia, and systemic or organ-specific autoinflammatory manifestations. These include skin lesions, panniculitis, inflammatory bowel disease, pulmonary disease, or arthritis associated with recurrent fever, leukocytosis, lymphoproliferation, and hepatosplenomegaly in the absence of an infectious agent. Some patients have circulating autoantibodies that underlie the cytopenias or systemic features, whereas others do not have circulating autoantibodies. In addition, some patients have recurrent infections, whereas others do not show signs of an immunodeficiency. Laboratory studies are consistent with immune dysregulation, including altered B-cell subsets and variably elevated proinflammatory cytokines. Detailed functional studies of platelets, red cells, and T lymphocytes suggest that abnormal actin cytoskeleton remodeling is a basic defect, indicating that this disorder can be classified as an immune-related actinopathy. Severe complications of the disease may result in death in childhood (Boussard et al., 2023; Block et al., 2023). [from OMIM]

MedGen UID:
1840213
Concept ID:
C5829577
Disease or Syndrome
14.

Immunodeficiency 89 and autoimmunity

Immunodeficiency-89 and autoimmunity (IMD89) is an autosomal recessive immune disorder characterized by adult onset of recurrent infections, allergies, microcytic anemia, and Crohn disease (see 266600) (Yang et al., 2020). [from OMIM]

MedGen UID:
1794237
Concept ID:
C5562027
Disease or Syndrome
15.

Crohn disease

A chronic granulomatous inflammatory disease of the intestines that may affect any part of the gastrointestinal tract from mouth to anus, causing a wide variety of symptoms. It primarily causes abdominal pain, diarrhea which may be bloody, vomiting, or weight loss, but may also cause complications outside of the gastrointestinal tract such as skin rashes, arthritis, inflammation of the eye, tiredness, and lack of concentration. Crohn's disease is thought to be an autoimmune disease, in which the body's immune system attacks the gastrointestinal tract, causing inflammation. [from HPO]

MedGen UID:
3664
Concept ID:
C0010346
Disease or Syndrome
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