Bone within a bone appearance (mnemonic)
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was changed:
A useful mnemonic to remember the possible aetiologies of a bone within a bone appearance is:
- GHOST DRAGON
Mnemonic
- G: growth arrest lines
-
H: heavy metal,
hypoparathryoidhypoparathryoidism,hypothyroidhypothyroidism - O: osteopetrosis
- S: sickle cell anaemia, scurvy, syphilis
-
T:
thalassemiathalassaemia, tuberculosis - D: disease of Caffey, hypervitaminosis D
- R: rickets, radiation therapy
- A: acromegaly
-
G:
gauchersGaucher disease - O: oxalosis
- N: normal (thoracic/lumbar vertebrae in infants)
-<strong>G: </strong>growth arrest lines</li>- +<strong>G: </strong><a title="Growth arrest lines" href="/articles/growth-arrest-lines">growth arrest lines</a>
- +</li>
-<strong>H: </strong>heavy metal, hypoparathryoid, hypothyroid</li>- +<strong>H: </strong>heavy metal, <a title="hypoparathryoidism" href="/articles/hypoparathryoidism">hypoparathryoidism</a>, <a title="hypothyroidism" href="/articles/hypothyroidism">hypothyroidism</a>
- +</li>
-<strong>O: </strong>osteopetrosis</li>- +<strong>O: </strong><a title="Osteopetrosis" href="/articles/osteopetrosis">osteopetrosis</a>
- +</li>
-<strong>S: </strong>sickle cell anaemia, scurvy, syphilis</li>- +<strong>S: </strong><a title="Sickle cell anaemia" href="/articles/sickle-cell-disease">sickle cell anaemia</a>, <a title="Hypovitaminosis C (scurvy)" href="/articles/hypovitaminosis-c-scurvy-1">scurvy</a>, <a title="Syphilis" href="/articles/syphilis">syphilis</a>
- +</li>
-<strong>T: </strong>thalassemia, tuberculosis</li>- +<strong>T: </strong><a title="Thalassaemia" href="/articles/thalassaemia">thalassaemia</a>, tuberculosis</li>
-<strong>D: </strong>disease of Caffey, hypervitaminosis D</li>- +<strong>D: </strong><a title="Caffey disease" href="/articles/caffey-disease-1">disease of Caffey</a>, <a title="hypervitaminosis D" href="/articles/hypervitaminosis-d">hypervitaminosis D</a>
- +</li>
-<strong>R: </strong>rickets, radiation therapy</li>- +<strong>R: </strong><a title="Rickets" href="/articles/rickets">rickets</a>, radiation therapy</li>
-<strong>A: </strong>acromegaly</li>- +<strong>A: </strong><a title="Acromegaly" href="/articles/acromegaly">acromegaly</a>
- +</li>
-<strong>G: </strong>gauchers</li>- +<strong>G: </strong><a title="Gaucher disease" href="/articles/gaucher-disease">Gaucher disease</a>
- +</li>
-<strong>O: </strong>oxalosis</li>- +<strong>O: </strong><a title="Oxalosis" href="/articles/oxalosis">oxalosis</a>
- +</li>
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