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31 dactylitis

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Dr. Muhammad Bin Zulfiqar
Dr. Muhammad Bin Zulfiqar

This document contains 6 figures showing images of hands and feet with different pathological conditions that cause dactylitis. Each figure is labeled and briefly described. Figure B 31-1 shows bone changes in the hands due to sickle cell anemia. Figure B 31-2 depicts a phalanx with tuberculosis. Figure B 31-3 demonstrates granulomas and bone formation from yaws. Figure B 31-4 pictures a phalanx with destruction and calcification from congenital syphilis. Figure B 31-5 shows changes in the fingers from sarcoidosis. Figure B 31-6 portrays cysts and new bone growth in a finger due to tuberous sclerosis.

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31Dactylitis*
CLINICAL IMAGAGING AN ATLAS OF DIFFERENTIAL DAIGNOSIS EISENBERG DR. Muhammad Bin Zulfiqar PGR-FCPS III SIMS/SHL
• Fig B 31-1 Hand-foot syndrome in sickle cell anemia. Diffuse destruction of the shafts of multiple phalanges and metacarpals is due to infarction. There are reactive bone changes with sclerosis and periosteal thickening.
• Fig B 31-2 Tuberculosis. Typical expansion of a phalanx along with irregular destruction of bone architecture. Note the absence of periosteal reaction, which differentiates the appearance from that of syphilitic dactylitis.38
• Fig B 31-3 Yaws. Examples of cortical and medullary granulomas along with intense periosteal new bone formation.10
• Fig B 31-4 Congenital syphilis. Typical destructive expansion of a phalanx with periosteal calcification forming a dense shell around the lesion.
• Fig B 31-5 Sarcoidosis. Destructive changes involving the middle phalanx of the second finger, with soft-tissue swelling about the third proximal interphalangeal joint and cortical thinning and a lacelike trabecular pattern affecting the proximal phalanges of the third and fourth digits.
• Fig B 31-6 Tuberous sclerosis. Cyst-like expansion and characteristic wavy periosteal new bone formation about the proximal and middle phalanges of the second digit. Periosteal new bone formation is also seen along the shaft of the second metacarpal.
31 dactylitis
31 dactylitis

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31 dactylitis

  • 2. CLINICAL IMAGAGING AN ATLAS OF DIFFERENTIAL DAIGNOSIS EISENBERG DR. Muhammad Bin Zulfiqar PGR-FCPS III SIMS/SHL
  • 3. • Fig B 31-1 Hand-foot syndrome in sickle cell anemia. Diffuse destruction of the shafts of multiple phalanges and metacarpals is due to infarction. There are reactive bone changes with sclerosis and periosteal thickening.
  • 4. • Fig B 31-2 Tuberculosis. Typical expansion of a phalanx along with irregular destruction of bone architecture. Note the absence of periosteal reaction, which differentiates the appearance from that of syphilitic dactylitis.38
  • 5. • Fig B 31-3 Yaws. Examples of cortical and medullary granulomas along with intense periosteal new bone formation.10
  • 6. • Fig B 31-4 Congenital syphilis. Typical destructive expansion of a phalanx with periosteal calcification forming a dense shell around the lesion.
  • 7. • Fig B 31-5 Sarcoidosis. Destructive changes involving the middle phalanx of the second finger, with soft-tissue swelling about the third proximal interphalangeal joint and cortical thinning and a lacelike trabecular pattern affecting the proximal phalanges of the third and fourth digits.
  • 8. • Fig B 31-6 Tuberous sclerosis. Cyst-like expansion and characteristic wavy periosteal new bone formation about the proximal and middle phalanges of the second digit. Periosteal new bone formation is also seen along the shaft of the second metacarpal.