A 20 year old man unjuries his right leg in a skiing accident. A radiograph of t

Question

A 20 year old man unjuries his right leg in a skiing accident. A radiograph of the leg reveals a compound fracture of the right fibula. The leg is immobalized in a cast. When the cast is removed, the patient notices that a callus has appeared where the cast rubbed against his foot. Which of the following terms best describes the mechanism of callus formation in the skin of this patient?

hyperplasia atrophy metaplasia hypoplasia dysplasia

I tried dysplasia already and thats wrong.....please help and expalin answer!!!

Explanation / Answer

Callus is a localized hyperplasia of the horny layer of the epidermis due to pressure or friction in unorganized network of woven bone formed about the ends of a broken bone; it is absorbed as repair is completed (provisional callus), and ultimately replaced by true bone (definitive callus). Hyperplastic callus formation in patients with osteogenesis imperfecta after fracture or surgery is a rare occurrence that has often been misdiagnosed as osteosarcoma.Hyperplastic callus formation has usually attained its peak after two to six month.Thereafter the affected limb diminished, but usually some permanent enlargement remained.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.