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Systemic mycobacteriosis in an aborted thoroughbred fetus in Japan.

Sano Y, Matsuda K, Osaki K, Miyasho T, Tsuda T, Taniyama H - J. Vet. Med. Sci. (2014)

Bottom Line: A male Thoroughbred fetus was aborted on day 251 of pregnancy.Gross and histological examinations detected systemic granulomatous lesions in many superficial and visceral lymph nodes and organs including the liver, tonsils, lungs, thymus, spleen, right thyroid gland and gastrointestinal tract, and suppurative placentitis, pyogranulomatous amnionitis and intralesional acid-fast bacilli were also detected.An examination of the DNA base sequence of the β subunit of RNA polymerase demonstrated that Mycobacterium avium strain 104 had infected several organs.

View Article: PubMed Central - PubMed

Affiliation: Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan.

ABSTRACT
A male Thoroughbred fetus was aborted on day 251 of pregnancy. Gross and histological examinations detected systemic granulomatous lesions in many superficial and visceral lymph nodes and organs including the liver, tonsils, lungs, thymus, spleen, right thyroid gland and gastrointestinal tract, and suppurative placentitis, pyogranulomatous amnionitis and intralesional acid-fast bacilli were also detected. An examination of the DNA base sequence of the β subunit of RNA polymerase demonstrated that Mycobacterium avium strain 104 had infected several organs. To the best of our knowledge, this is the first report of equine fetal mycobacterial infection in Japan.

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Related in: MedlinePlus

Gross photograph of the fetus’ intestinal tract and the associated lymph nodes. Thecranial mesenteric lymph nodes are markedly enlarged (arrowhead). Bar=10 cm.
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fig_001: Gross photograph of the fetus’ intestinal tract and the associated lymph nodes. Thecranial mesenteric lymph nodes are markedly enlarged (arrowhead). Bar=10 cm.

Mentions: The aborted fetus exhibited a crown-rump length of 47 cm and weighed 10 kg. The fetuspresented with growth insufficiency and was emaciated, and a white viscous substance adheredto its external surface. Enlarged superficial and visceral lymph nodes were seen throughoutits body, including the axillary, inguinal, mediastinal, bronchial, intercostal, hepatic,splenic, gastric, mesenteric and colonic lymph nodes. The cranial mesenteric lymph nodes weremost severely affected and measured approximately 9 × 4 × 4 cm (Fig. 1Fig. 1.


Systemic mycobacteriosis in an aborted thoroughbred fetus in Japan.

Sano Y, Matsuda K, Osaki K, Miyasho T, Tsuda T, Taniyama H - J. Vet. Med. Sci. (2014)

Gross photograph of the fetus’ intestinal tract and the associated lymph nodes. Thecranial mesenteric lymph nodes are markedly enlarged (arrowhead). Bar=10 cm.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4300377&req=5

fig_001: Gross photograph of the fetus’ intestinal tract and the associated lymph nodes. Thecranial mesenteric lymph nodes are markedly enlarged (arrowhead). Bar=10 cm.
Mentions: The aborted fetus exhibited a crown-rump length of 47 cm and weighed 10 kg. The fetuspresented with growth insufficiency and was emaciated, and a white viscous substance adheredto its external surface. Enlarged superficial and visceral lymph nodes were seen throughoutits body, including the axillary, inguinal, mediastinal, bronchial, intercostal, hepatic,splenic, gastric, mesenteric and colonic lymph nodes. The cranial mesenteric lymph nodes weremost severely affected and measured approximately 9 × 4 × 4 cm (Fig. 1Fig. 1.

Bottom Line: A male Thoroughbred fetus was aborted on day 251 of pregnancy.Gross and histological examinations detected systemic granulomatous lesions in many superficial and visceral lymph nodes and organs including the liver, tonsils, lungs, thymus, spleen, right thyroid gland and gastrointestinal tract, and suppurative placentitis, pyogranulomatous amnionitis and intralesional acid-fast bacilli were also detected.An examination of the DNA base sequence of the β subunit of RNA polymerase demonstrated that Mycobacterium avium strain 104 had infected several organs.

View Article: PubMed Central - PubMed

Affiliation: Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan.

ABSTRACT
A male Thoroughbred fetus was aborted on day 251 of pregnancy. Gross and histological examinations detected systemic granulomatous lesions in many superficial and visceral lymph nodes and organs including the liver, tonsils, lungs, thymus, spleen, right thyroid gland and gastrointestinal tract, and suppurative placentitis, pyogranulomatous amnionitis and intralesional acid-fast bacilli were also detected. An examination of the DNA base sequence of the β subunit of RNA polymerase demonstrated that Mycobacterium avium strain 104 had infected several organs. To the best of our knowledge, this is the first report of equine fetal mycobacterial infection in Japan.

Show MeSH
Related in: MedlinePlus