Children with celiac disease are at risk for reduced bone mineral density. A strict gluten-free diet improves bone mineralization, even in 1 year. Early diagnosis and treatment of celiac disease during childhood will protect the patient from osteoporosis.
We describe seven Turkish children with DOCK8 deficiency who have not been previously reported. Three patients presented with typical features of recurrent or severe cutaneous viral infections, atopic dermatitis, and recurrent respiratory or gastrointestinal tract infections. However, four patients presented with other features. Patient 1-1 featured sclerosing cholangitis and colitis; patient 2-1, granulomatous soft tissue lesion and central nervous system involvement, with primary central nervous system lymphoma found on follow-up; patient 3-1, a fatal metastatic leiomyosarcoma; and patient 4-2 showed no other symptoms initially besides atopic dermatitis. Similar to other previously reported Turkish patients, but in contrast to patients of non-Turkish ethnicity, the patients’ lymphopenia was primarily restricted to CD4+ T cells. Patients had homozygous mutations in DOCK8 that altered splicing, introduced premature terminations, destabilized protein, or involved large deletions within the gene. Genotyping of remaining family members showed that DOCK8 deficiency is a fully penetrant, autosomal recessive disease. In our patients, bone marrow transplantation resulted in rapid improvement followed by disappearance of viral skin lesions, including lesions resembling epidermodysplasia verruciformis, atopic dermatitis, and recurrent infections. Particularly for patients who feature unusual clinical manifestations, immunological testing, in conjunction with genetic testing, can prove invaluable in diagnosing DOCK8 deficiency and providing potentially curative treatment.
Lung involvement in NPD and GD patients should be included in the differential diagnosis of interstitial lung disease. Besides interstitial appearance on HRCT, atelectasis related to bronchial cast and bronchiectasis are other radiological findings in these group of patients. Analysis of bronchoalveolar fluid and lung biopsy provide very important clues for diagnosis. Hepatopulmonary syndrome is an important vascular complication observed in GD patients.
Although this is a small cohort, disease-causing MEFV mutations and FMF disease rate were increased among our patients with IBD. The increase was prominent among CD patients, whereas in UC the rate was similar to the Turkish healthy control population.
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