Dermatofibrosarcoma protuberans. CT findings with pathologic correlation in 6 cases.
OBJECTIVE
To characterize the CT findings of dermatofibrosarcoma protuberans.


METHODS
CT and pathologic specimens of 6 patients with dermatofibrosarcoma protuberans (5 in the trunk and 1 in the leg) were retrospectively reviewed.


RESULTS
CT clearly defined the tumors in the dermis and subcutaneous tissue with a characteristic, if not pathognomonic, protrusion. On postcontrast CT, 3 tumors showed marginal enhancement and central low density, while the others showed homogeneous enhancement. Pathologically, the marginal enhancement on CT corresponded to fibrosarcomatous changes, and the central low density to necrosis. The tumors with homogeneous enhancement had no sarcomatous changes.


CONCLUSIONS
CT allows detection and precise anatomic localization of dermatofibrosarcoma protuberans. Marginal enhancement with central low density on CT may suggest a relatively poor prognosis.
Miyakawa
E
E
Department of Radiology, Teikyo University School of Medicine, Ichihara Hospital, Chiba, Japan.
Fujimoto
H
H
Miyakawa
K
K
Nemoto
K
K
Kozawa
K
K
Sugano
I
I
Odani
Y
Y
Hirata
T
T
Ogata
H
H
Ohno
T
T
D000328:Adult; D018223:Dermatofibrosarcoma / Q000000981:diagnostic imaging* / Q000453:epidemiology / Q000473:pathology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D011379:Prognosis; D012867:Skin / Q000473:pathology*; D012878:Skin Neoplasms / Q000000981:diagnostic imaging* / Q000453:epidemiology / Q000473:pathology; D013997:Time Factors; D014057:Tomography, X-Ray Computed