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Áõ»óÀÌ ÀÖ´Â °ñ¿¬°ñÁ¾ÀÇ ÀÚ±â°ø¸í¿µ»ó ¼Ò°ß MR Imaging in Symptomatic Osteochondromas

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±è¼ö¿µ/Soo Young Kim ±èÁö¿µ/±è»óÈì/õ°æ¾Æ/¹Ú¿µÇÏ/Jee Young Kim/Sang Heum Kim/Kyung Ah Chun/Young Ha Park

Abstract

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(9.7%)¿¡¼­ ³ªÅ¸³µ´Ù.
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Purpose : To assess the MR findings of symptomatic osteochondromas.
Materials and Methods : We evaluated 31 patients who between July, 1994 and May,
1997 underwent MR imaging for symptomatic osteochondroma. Fourteen were males and
17 were females, and their ages ranged from 8 to 49(mean, 23) years. Using T1WI,
T2WI and gadolinium-DAPA-enhanced T1WI, images were analysed according to signal
intensity in the osseous component of the osteochondroma, thickness of the cartilage
cap, and associated change in surrounding soft tissue.
Results : Clinical manifestations included a palpable mass or tendency to grow(n=22)
and pain on movement(n=9). Complications were of three types : that which followed
change in the osseous component of the tumor, associated change in surrounding soft
tissue, and malignant transformation. In the osseous component, bone marrow edema or
contussion was seen in 21 cases (67.7%), and in two (65%), fracture was observed. In
surrounding soft tissue, muscle impingement was seen in 21 cases (67.7%), bursitis was
in 7 cases (22.6%), tenosynovitis in seven(22.6%), and vascular compression in five
(16.1%). In three cases (9.7%), thansformation to chondrosarcoma had occurred ; two of
these were derived from osteochondromatosis and one from a single osteochondroma.
The thickness of the cartilage cap was as follows : <5mm(n=16), 5-10mm (n=12), and
>10mm (n=3).
Conclusion : In patients with symptometic osteochondroma, MR imaging is useful for
detecting both complications and malignant transformation.

Å°¿öµå

Bone neoplasms; MR; Osteochondroma.;

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