Calcinosis Circumscripta on Lingual Muscles and Dermis in a Dog

  • JEONG Wonil
    Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University
  • NOH Donghyung
    Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University
  • KWON Oh-Deog
    Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University
  • WILLIAMS Bruce H.
    Department of Veterinary Pathology, Armed Forces Institute of Pathology
  • PARK Seung-Chun
    Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University
  • LEE Manhee
    Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University
  • DO Sunhee
    Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University
  • CHUNG Jaeyong
    Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University
  • LEE Gippeum
    Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University
  • YUN Haesun
    Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University
  • JEONG Kyu-Shik
    Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University

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Description

A 10-month old male Shi-tzu was presented with a week history of scurfy skin and whitish masses located in the ventral portion of tongue. Grossly, two whitish prominences with diameters of 3 to 4 mm were found on the underside of the tongue. Microscopically, in ulcerative epidermis, deposition of dense, amorphous granular basophilic calcium salts was separated by thin fibrous connective tissue containing mild inflammation. Many fascicles were characterized by replacement of degenerating myofibers with calcification. The precise cause of calcification could not be determined; however, it is interesting that two different lesions shown in calcinosis circumscripta and slight nutritional myopathy were also observed simultaneously only in the tongue.<br>

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