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| Ultrasonographic Findings of Prepubertal Testicular Teratoma |
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| Jang Han Won, M.D. Jae Ho Cho, M.D. |
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| Department of Diagnostic Radiology, College of Medicine, Yeungnam University |
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| PURPOSE : To evaluate the ultrasonographic findings of testicular teratoma arising in pre-pubertal children.
MATERIALS and METHODS : We studied 6 cases in 5 patients with pathologically proven testicular teratoma.
Ultrasonography was performed in all cases and MRI in 5 cases. The location, size, shape, margin and internal
echo pattern of the lesion were evaluated on ultrasonography and the shape, signal intensity and presence or absence
of contrast enhancement were evaluated on MRI.
RESULTS : The shape of all cases was round or oval and the lesion size ranged from 0.5 to 3.5 cm (average, 1.7 cm).
Four of 6 cases were seen as cystic lesions, Three of which were multilocular and one was unilocular. The cystic
lesions were filled with echo-free fluid without any solid component. The inner wall and septa were minutely
granulated. One of 6 cases was seen as a predominantly cystic lesion containing heterogeneous, high echoic portions.
One case was seen as a heterogeneous mixed echoic lesion with dirty posterior sonic shadowing. Three of
the 4 cases seen as a cyst on ultrasonography were also seen as a cyst on MRI. In one case seen as a predominantly
cystic lesion on ultrasonography, the periphery of the lesion was hypointense and the center was hyperintense
on T2-weighted image. The remaining case seen as a heterogeneous mixed echoic mass was markedly
heterogeneous in signal intensity both on T2- and T1-weighted images and hyperintense fat components were
noted. Contrast enhancement was not seen in any of the 4 cases.
CONCLUSION : On ultrasonography, pre-pubertal testicular teratoma is commonly seen as a multilocular or unilocular
cyst and a minutely granulated appearance is noted in the inner wall or septa of the cystic lesion. |
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| Keyword : Testis, US Testis, neoplasms |
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pdf파일 : 67-73 장한원.pdf 
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> Journal > Journal Search 
Journal of Korean Society of Ultrasound in Medicine 2005 ; 24 (2) : p.67-73
