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Hypertrophy of horny layer
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Mechanically induced traumatic Hyperkeratosis
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Aetiology
• Mechanical stress
biomechanical
defects of foot/lower leg
walking
surfaces
footwear
obesity
atrophy
of fibro-fatty padding
bony
prominences
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Pathogenesis
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Mitosis increases but NOT desquamation
-Ischaemia
-Reactive hyperaemia
-Chronic inflammation = fibrosis
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Clinical
appearance
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Thickening of stratum corneum
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Yellow
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Common
sites
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Plantar metatarsophalangeal joints
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(MTPJ’s)
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Periphery of heel
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Apicies of toes
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Dorsal interphalangeal joints (IPJ’s)
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Plantar IPJ hallux
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| Links: |
| Corns
and Calluses Resulting from Mechanical Hyperkeratosis
- article from the American Family Physician
Patient
information on corns
and callus from ePodiatry |
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to POD11PDM home page
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