Table 3.
Histopathological findings in Eurasian otters from Schleswig-Holstein between 2015–2020.
| Quantity | |||||
|---|---|---|---|---|---|
| Morphological Findings | Unknown Years | 2015–2018 | 2019 | 2020 | Total |
| Respiratory tract | |||||
| Pneumonia (purulent) | / | / | / | 1 | 1 |
| with intralesional foreign material | / | / | 1 | 1 | 2 |
| Pneumonia (nonpurulent) | / | 5 | 5 | 2 | 12 |
| Pneumonia (granulomatous) | 1 | 2 | 3 | 1 | 7 |
| with intralesional foreign material | 1 | / | 1 | / | 2 |
| Bronchopneumonia (nonpurulent) | 1 | / | 2 | / | 3 |
| with intralesinonal fungal spores | 1 | / | 1 | / | 2 |
| Bronchiolitis (nonpurulent) | / | / | 1 | / | 1 |
| Pleuritis (nonpurulent) | / | / | 1 | / | 1 |
| with bacteria pleura pulmonalis | / | / | 1 | / | 1 |
| Parenchymatous hemorrhages | / | / | 3 | 3 | 6 |
| Cardiovascular system | |||||
| Myocardial fibrosis with cell loss | 1 | / | / | / | 1 |
| Protozoal cysts myocard | / | 1 | 1 | / | 2 |
| Thoracic cavity | |||||
| Diaphragmatic serositis | / | / | 1 | / | 1 |
| Diaphragmatic edema | / | / | / | 1 | 1 |
| Protozoal cysts diaphragm | / | 3 | 3 | 2 | 8 |
| Alimentary system | |||||
| Gastritis | / | / | 1 | / | 1 |
| Gastritis (ulcerative) | / | 1 | / | / | 1 |
| Erosions of gastric mucosa | / | 1 | 1 | / | 2 |
| Gastric edema (submucosal) | / | / | / | 1 | 1 |
| Enteritis (purulent) | / | / | / | 1 | 1 |
| Portal hepatitis | / | / | 1 | / | 1 |
| Portal fibrosis | 2 | / | / | / | 2 |
| Cholelithiasis | / | 1 | / | / | 1 |
| Protozoal cysts lingual musculature | / | 1 | 8 | 5 | 14 |
| Urinary and reproductive tract | |||||
| Nephrolithiasis | / | 2 | 1 | 1 | 4 |
| Urolithiasis | / | / | / | 1 | 1 |
| Cysts vas deferens | / | 2 | 4 | 12 | 18 |
| Placental scars | / | 1 | 2 | 1 | 4 |
| Skin and subcutis | |||||
| Epidermal hyperplasia | / | / | / | 1 | 1 |
| Dermal fibrosis | / | / | 1 | / | 1 |
| Subcutaneous bleeding | / | / | 1 | / | 1 |
| Bite wounds | / | 2 | 2 | 2 | 6 |
| Musculoskeletal system | |||||
| Hemorrhages periostal | / | / | / | 1 | 1 |
| Protozoal cysts skeletal muscle | / | 2 | 7 | 5 | 14 |
| Polydactylia | / | / | / | 1 | 1 |
| Central nervous system, eyes, and ears | |||||
| Leptomeningeal hemorrhages | / | / | 1 | 2 | 3 |
| Endophthalmitis | / | / | / | 1 | 1 |
| with retinal atrophy | / | / | / | 1 | 1 |
| Ectoparasites (ticks) | / | / | 2 | 5 | 7 |
| Hematopoetic and endocrine system | |||||
| Thyroid follicular cysts | / | 1 | 3 | 1 | 5 |
| Follicular hyperplasia (tonsil) | / | / | / | 3 | 3 |
| Follicular Hyperplasia (lymph node) | / | / | 3 | 3 | 6 |
| Follicular hyalinosis and depletion (lymph node) | 2 | 1 | 8 | 10 | 21 |
| Hemosiderosis lymph node | 1 | 1 | / | 3 | 5 |
| Anthracosis lymph node | 1 | / | / | 2 | 3 |
| Lymphoid depletion | / | / | / | 1 | 1 |
| Adrenalitis | 1 | 2 | 3 | 4 | 10 |
| Nodular hyperplasia adrenal gland | / | / | / | 2 | 2 |
| Fibrosis and mineralization adrenal gland | 1 | / | / | / | 1 |
| Periadrenal bleeding | / | / | 1 | / | 1 |
| Follicular hyperplasia (spleen) | / | / | 1 | / | 1 |
| Follicular hyalinosis and depletion (spleen) | / | 2 | 11 | 7 | 20 |
| Follicular hyalinosis (Peyer’s patches) | / | / | 1 | / | 1 |