Table 1.

Clinical investigation, outcome, laboratory analyses, and histological findings in koi carp with swim bladder disorders.

Case #	Clinical Investigations	Outcome	Laboratory Analyses	Histological Findings
1	Ultrasonographic investigation, echo-guided needle aspiration	Euthanized	Bacteriology, histology	Submucosal and muscularis mucosae inflammation, lamina propria edema, mucosal hyperplasia with squamous metaplasia
2	Ultrasonographic investigation, echo-guided needle aspiration	Euthanized	Bacteriology, histology	Submucosal, muscularis mucosae and lamina propria inflammation, mucosal hyperplasia with mucous metaplasia and intraepithelial parasitic stages
3	Ultrasonographic investigation	Euthanized	Histology	Submucosal inflammation
4	Ultrasonographic investigation, echo-guided needle aspiration	Euthanized	Bacteriology, histology	Submucosal inflammation, muscularis mucosae fibrosis, mucosal hyperplasia with intraepithelial parasitic stages.
5	X-ray	Euthanized	Histology	Muscularis mucosae fibrosis, mucosal hyperplasia and inflammation (papillary type)
6	X-ray, ultrasonographic investigation	Euthanized	Bacteriology, histology	Submucosal and muscularis mucosae inflammation, muscularis mucosae fibrosis
7	Ultrasonographic investigation, echo-guided needle aspiration	Recovered	Bacteriology	NA
8	Ultrasonographic investigation, echo-guided needle aspiration	Recovered	Bacteriology	NA
9	Ultrasonographic investigation, echo-guided needle aspiration	Recovered	Bacteriology	NA

NA: not applicable.