Case#: A 51-year-old woman

FamilyInfo: the patient (and her affected family members) were heterozygous for a novel, likely pathogenic frameshift deletion variant in CLTA-4 exon

CasePresentingHPOs: HP:0002018, HP:0002141, HP:0003474, HP:0002110, HP:0001891, HP:0000964, HP:0001973, HP:0011108, HP:0100512

CaseHPOFreeText: necrotising granulomatous lymphadenitis, osteonecrosis of the jaw induced by bisphosphonates, diverticulitis, and bowel salt malabsorption. The patient’s daughter had recurrent episodes of CNS inflammation as a child and in adulthood she developed autoimmune hepatitis, autoimmune haemolytic anaemia and bronchiectasis.

FamilyInfo: The patient’s daughter had recurrent episodes of CNS inflammation as a child and in adulthood she developed autoimmune hepatitis, autoimmune haemolytic anaemia and bronchiectasis. The patient’s son was known to have type I diabetes, thyroid disease, pernicious anaemia and autoimmune encephalitis. FAS sequencing for autoimmune lymphoproliferative syndrome (ALPS) was normal and, at the time of presentation, extended panel screening for primary immunodeficiency was ongoing. There was prior exposure to corticosteroids but no other immunomodulatory treatment.

Variant: c.81dup p.(leu28Serfs*32)

ClinVar: 644629

GenotypingMethod: a virtual sub-panel of 194 genes associated with primary immunodeficiencies screened using Agilent ‘Focused Exome’ custom target enrichment system (SureSelectXT) and Next Generation Sequencing demonstrated that the patient (and her affected family members) were heterozygous for a novel, likely pathogenic frameshift deletion variant