Atypical Behçet’s is recognised in myelodysplastic syndrome (MDS) cases and is associated with trisomy 8. Clonal cytopenia of undetermined significance (CCUS) is recognised as a precursor to MDS. Our case describes the presentation of atypical Behçet’s, in association with CCUS, post a Streptococcal infection. A mutation of a zinc finger RNA spliceosome, ZRSR2, is also described. Our patient initially presented with macrocytic anaemia, together with neutropenia and lymphocytopenia on routine monitoring. Later gastrointestinal symptoms together with oral and anal ulcerations developed. He was treated with oral zinc therapy and had resolution of recurrent oral ulcerations and significant reduction in severity of anal ulcerations. The functional impact of ZRSR2 mutation on spliceosome assembly is yet to be defined, but has been previously reported in CCUS with a clinical phenotype of macrocytic anaemia.
- Inflammatory bowel disease
- Haematology (incl blood transfusion)
- Malignant and Benign haematology
- Vitamins and supplements
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Contributors DP, MC and PL wrote and researched the contents. AL contributed to sequencing.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Case reports provide a valuable learning resource for the scientific community and can indicate areas of interest for future research. They should not be used in isolation to guide treatment choices or public health policy.
Competing interests None declared.
Provenance and peer review Not commissioned; externally peer reviewed.