Recurrent feline gastrointestinal eosinophilic sclerosing fibroplasia and presumptive eosinophilic cystitis in a domestic short-haired cat: a case report

This report describes recurrent feline gastrointestinal eosinophilic sclerosing fibroplasia (FGESF) and eosinophilic cystitis in an 8-year-old domestic short-haired cat. The cat presented with incontinence, pollakiuria, vomiting and weight loss. An abdominal mass was palpated and ultrasonography revealed severe segmental thickening of the jejunal wall with loss of layering. Complete resection of the jejunal mass was performed. The resected mass was composed of branching trabeculae of dense collagen, intermixed with bundles of large fibroblasts and inflammatory cells, which is consistent with FGESF. One year later, a new mass reoccurred in another intestinal segment. Between both FGESF occurrences, mycoplasmas were cultured from urine and fine needle aspiration of the urinary bladder wall showed numerous eosinophils only; therefore, a presumptive diagnosis of eosinophilic cystitis was made. All haematological analyses performed within the one-year period revealed eosinophilia.