title: Letter: A case of severe combined immunodeficiency with thymic mast cell hyperplasia.
mesh_terms: D006801:Humans; D007153:Immunologic Deficiency Syndromes / Q000150:complications* / Q000235:genetics; D007223:Infant; D008297:Male; D008407:Mast Cells / Q000276:immunology*; D013952:Thymus Hyperplasia / Q000150:complications* / Q000276:immunology / Q000473:pathology