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KMID : 0613320010070010028
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Journal of the Korean Bone and Joint Tumor Soceity
2001 Volume.7 No. 1 p.28 ~ p.35
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Clinical Significance of MR Imaging for the Diagnosis and Treatment of Subungual Glomus Tumor in the Fingers
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Kim Byung-Suck
Cho Jae-Hyun
Han Kyeong-Jin
Kim Woo-Sik
Lee Kyi-Beom
Kang Shin-Young
Ha Heon-Kyo
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Abstract
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Purpose: Authors investigated the efficiency of preoperative MRI in suspicious glomus tumor and the clinical outcomes after marginal excision.
Materials and Methods: In 10 cases of glomus tumors in the fingers, authors retrospective-ly analyzed the clinical data, including previous trauma, treatment history, preoperative symp-toms, physical examination, plain radiography, MRI (9 cases), pathological findings and post-operative complications.
Results: The patients had pain in 10 cases, tenderness in 9 cases, cold sensitivity in 3 cases and edema in one case. MRI showed low signal (3 cases) or iso-signal (5) intensity on T1 weighted image, high signal intensity (8) on T2 weighted image, and all the lesions were enhanced in gadolinium enhancement images. The exact locations of glomus tumors were median in 6 cases, lateral in 5, lateral fold in 2 and pulp in 3 in transverse section and nail bed in 5 cases and nail matrix in 5 in sagittal section. Marginal excision was performed by lateral approach in one case and transungual in 9 cases. Histologically, all 10 cases were composed of solid sheets of round cells interrupted by thin-walled blood vessels. Most of clinical symptoms were disappeared in all cases after operation. Nail deformity was found in one case, which was originated from nail matrix, however, there was no recurrence.
Summary: Clinical symptom was the most impotant factor in diagnosis of glomus tumor in the fingers. However, preoperative MRIs were helpful in patients, who had obscure pain or pro-longed clinical symptoms with suspicious glomus tumors. Preoperative MRI might be one of the most useful tools for establishing the exact diagnosis and detecting the location of glomus tumors, in spite of the relatively high expenses.
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KEYWORD
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Finger, Glomus tumor, Magnetic resonance imaging, Marginal excision
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