• "Fish tank granuloma" (in humans). (J4.183.w1)
• Piscine tuberculosis (in fish). (J4.183.w1)

• Mycobacterium marinum. (J4.183.w1)

• Mycobacterium marinum (Mycobacterium (Bacteria Genera))

• A single case of Mycobacterium marinum infection causing systemic mycobacteriosis has been described in a hedgehog (Erinaceus europaeus - West European Hedgehog). (J4.183.w1)

Clinical signs:

• Initially three ventral cervical masses; these became abscessed within four months after initial presentation but by ten months were firm and nonsuppurative. (J4.183.w1)
• At 18 months following initial examination, weight loss and depression with death after a week. (J4.183.w1)

Gross pathology:

• Lungs: Contained many randomly-distributed nodules: firm, grey-white, 1-4 mm diameter.
• Lymph nodes: Cervical lymph nodes markedly enlarged, firm and pale yellow. 
• Cardiac: Left ventricular hypertrophy.
• Impression smears: acid-fact bacilli in smears from cervical lymph node and from lung.

(J4.183.w1)

Histopathology:

• Cervical lymph nodes, lungs, subcutis, spleen, liver and heart: Granulomatous lesions present (most prevalent in the cervical lymph nodes, less prevalent (in descending order) in the other organs.
• Lesions of two types:
  • Dense foci of macrophages, lymphocytes and Langerhans'-type giant cells.
  • In cervical lymph nodes, subcutis and infrequently in the lungs: Coalescence of lesions to give large caseous necrotic areas with ghost-like giant cells as well as moderate numbers of viable lymphocytes, macrophages and Langerhans'-type giant cells, with histiocytic cells, lymphocytes and Langerhans'-type giant cells at the periphery of the lesions.
• Lesions were shown by acid-fast staining to contain long, slender, banded/barred acid fast bacilli, extracellularly and within giant cells.
• Lesions in the lungs contained many acid-fast bacilli while those in other tissues contained only a few bacilli.

(J4.183.w1)

• Infection with Mycobacterium marinum occurred after a hedgehog had been kept in a large (dry) fish tank for about seven weeks. (J4.183.w1)

Transmission: 

• This organism generally enters the host through an abrasion, laceration or puncture wound. (J4.183.w1)

Culture:

• Isolation of bacteria after two weeks of culture; these were identified as Mycobacterium marinum. (J4.183.w1)

• Physical Examination of Mammals
• Necropsy of Mammals
• Chapter 2 - B36 Field Manual of Wildlife Diseases - Specimen Collection and Preservation
• Chapter 3 - B36 Field Manual of Wildlife Diseases - Specimen shipment
• Appendix A - B36 Field Manual of Wildlife Diseases - Sample specimen history form

• Systemic mycobacteriosis with Mycobacterium marinus reported in a hedgehog (Erinaceus europaeus - West European Hedgehog). (J4.183.w1)

(List does not contain all other species groups affected by this infectious agent)