Subungual tumors: clinicopathologic correlation with US and MR imaging findings.
Various types of tumors can affect the subungual space, including benign solid tumors (glomus tumor, subungual exostosis, soft-tissue chondroma, keratoacanthoma, hemangioma, lobular capillary hemangioma), benign cystic lesions (epidermal and mucoid cysts), and malignant tumors (squamous cell carcinoma, malignant melanoma). Imaging plays an important role in the detection and differentiation of subungual tumors because of their small size, nonspecific clinical manifestations, and functional significance. Ultrasonography (US)-in particular, high-resolution US with color Doppler studies-provides useful information regarding tumor size, location, shape, and internal characteristics (cystic, solid, or mixed), but it is limited in the further characterization of tissue. Magnetic resonance (MR) imaging has an important role in categorizing tumors according to their anatomic location, pathologic origin, and signal characteristics. There is some overlap between the US and MR imaging features of subungual tumors; however, certain features can allow accurate diagnosis and expedite management when correlated with clinical and pathologic findings.
Department of Radiology, College of Medicine, Inje University, Busan Paik Hospital, Busanjin-ku, Busan, Korea.
Hye Jin
HJ
Baek
Sun Joo
SJ
Lee
Kil Ho
KH
Cho
Hye Jung
HJ
Choo
Sung Moon
SM
Lee
Young Hwan
YH
Lee
Kyung Jin
KJ
Suh
Tae Yong
TY
Moon
Jang Gyu
JG
Cha
Jae Hyuck
JH
Yi
Myung Hee
MH
Kim
Soo-Jin
SJ
Jung
Joon Hyuk
JH
Choi
D001859:Bone Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D002812:Chondroma / Q000175:diagnosis / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D004814:Epidermal Cyst / Q000175:diagnosis / Q000000981:diagnostic imaging; D005385:Fingers; D005918:Glomus Tumor / Q000175:diagnosis* / Q000000981:diagnostic imaging; D006391:Hemangioma / Q000175:diagnosis / Q000000981:diagnostic imaging; D006801:Humans; D007636:Keratoacanthoma / Q000175:diagnosis / Q000000981:diagnostic imaging; D008279:Magnetic Resonance Imaging / Q000379:methods*; D018298:Mucoepidermoid Tumor / Q000175:diagnosis / Q000000981:diagnostic imaging; D009260:Nail Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D012983:Soft Tissue Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D014034:Toes; D014463:Ultrasonography / Q000379:methods*