Editorial Type:
Article Category: Research Article
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Online Publication Date: 19 Feb 2022

Testudine Intranuclear Coccidiosis (TINC)

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Page Range: 144 – 154
DOI: 10.5818/JHMS-D-20-00024
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Figure 1.
Figure 1.

Leopard tortoise (Stigmochelys pardalis) with oral plaques associated with intranuclear coccidiosis.

Figure 2.
Figure 2.

Radiated tortoise (Astrochelys radiata) with esophagostomy tube in place. The tortoise would occasionally pull its head within the margins of the shell, open its mouth, and perform grinding movements with the jaws. It was unaware of surroundings.

Figure 3.
Figure 3.

Oral and perioral ulcers in a red-footed tortoise (Chelonoidis carbonarius) nearly 2 wk into disease progression with intranuclear coccidiosis.

Figure 4.
Figure 4.

Leopard tortoise (Stigmochelys pardalis), pancreas. The pancreas (P) has severe fibrosis (f) that completely effaces the acinar tissue. Only remnant ducts remain (arrow). D = duodenum, L = duodenal lumen. Hematoxylin and eosin, bar = 450 µm.

Figure 5.
Figure 5.

Radiated tortoise (Astrochelys radiata), kidney. (A) Renal tubular parenchyma (arrow) is largely replaced by fibrosis (F) and lymphocytic inflammation (circle). Hematoxylin and eosin, bar = 80 µm. (B) Higher magnification of (A) showing gametes in nuclei of renal tubular epithelium (arrow). L = tubular lumen. Hematoxylin and eosin, bar = 40 µm.

Figure 6.
Figure 6.

Numerous developmental stages of an intranuclear coccidial organism can be seen in intestinal epithelial cells. With permission from Jacobson et al. (1994) and the Journal of Zoo and Wildlife Medicine.

Figure 7.
Figure 7.

Intranuclear coccidian in an intestinal epithelial cell. Merozoites (Z) are budding from a spherical residuum (R).

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