Parathyroid Gland - Angiectasis

Parathyroid Gland - Angiectasis in a male BALB/c mouse from a subchronic study. Multiple dilated vascular structures filled with erythrocytes are present in the parathyroid.
Figure 1 of 2
comment:
Dilation of vascular spaces may be seen in the parathyroid of mice and rats, although it is rare. The dilated vascular spaces are disseminated throughout the gland and represent preexisting vascular channels lined by flattened endothelial cells. In Figure 1
recommendation:
Parathyroid angiectasis should be diagnosed and given a severity grade. If the severity is marked, the pathology narrative should discuss its distinction from hemangioma. If both parathyroids are involved, the term “bilateral” should be included in the diagnosis and the severity grade based on the more severely affected gland. Since angiomatous lesions may be multisite and systemic, the pathology narrative should address any relationship that this parathyroid lesion might have to similar changes in other tissues.references:
Hardisty JF, Boorman GA. 1990. Thyroid gland. In: Pathology of the Fischer Rat: Reference and Atlas (Boorman GA, Eustis SL, Elwell MR, Montgomery CA, MacKenzie WF, eds). Academic Press, San Diego, 519-536. Abstract: http://www.ncbi.nlm.nih.gov/nlmcatalog/9002563
Seely JC, Hildebrandt PK.. 1990. Parathyroid gland. In: Pathology of the Fischer Rat: Reference and Atlas (Boorman GA, Eustis SL, Elwell MR, Montgomery CA, MacKenzie WF, eds). Academic Press, San Diego, 537-543. Abstract: http://www.ncbi.nlm.nih.gov/nlmcatalog/9002563
Web page last updated on: August 11, 2014