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Name:

Dillon

Age:

12

Height:

4' 10"

Weight:

83 lbs

Sex:

Male

Current Condition:

Oligoarthritis Juvenile Idiopathic Arthritis (JIA)

Dillon's Histology Reference
Dillon Muscle Tissue Cross Section whole Skeletal Muscle
Normal skeletal muscle slide showing cross-sectional and elongated muscle striations. No evidence of inflammation. White space visible on the slide is an artifact produced when the muscle contracts during slide processing.
Perifascicular atrophy of myofibers, white arrows pointing at light pink marble muscle fibers surrounded by a darker pink muscle fibers.
Evidence of inflammation is noted between cross-sectional skeletal muscle. Atrophy of the muscle is also present indicating dermatomyositis.

Image Source:

Skeletal muscle bundles in long and cross-section, Berkshire Community College Bioscience Image Library, Wikimedia Commons, permitted under Public Domain.

Image Source:

Muscle biopsy with perifascicular atrophy of myofibers as seen in dermatomyositis, Sharfaei, S., Wikidoc, permitted under CC BY-SA 3.0.