Primary renal epithelioid hemangioendothelioma.
BACKGROUND
Epithelioid hemangioendothelioma (EH) is a rare vascular neoplasm with an unpredictable malignant potential that has been described mainly in soft tissue, liver, and lung.


METHODS
We report a case of a primary renal EH in a 54-year-old woman who presented with a 3-month history of abdominal pain. Abdominal ultrasound and computed tomography scan revealed a solitary mass of 4.0 x 3.2 cm in the outer surface of the right kidney. Nephron-sparing surgery was performed. On the basis of the histological and immunohistochemical findings, the diagnosis of EH was made. The patient was free of disease 6 months after surgery.


CONCLUSIONS
Although EH may have a histologically benign appearance and can be treated using a nephron-sparing approach, this neoplasm is potentially malignant urging the need for a long-term follow-up in these patients.
Department of Pathology, University Hospital, Larissa, Greece. fotkarasa@yahoo.gr
Foteini
F
Karasavvidou
Sotirios
S
Barbanis
Stavros
S
Gravas
Maria
M
Ioannou
Athanasios
A
Oeconomou
Dimitra
D
Pappa
Michael D
MD
Melekos
George
G
Koukoulis
D015746:Abdominal Pain / Q000175:diagnosis / Q000209:etiology*; D005260:Female; D018323:Hemangioendothelioma, Epithelioid / Q000150:complications* / Q000175:diagnosis* / Q000628:therapy; D006801:Humans; D007680:Kidney Neoplasms / Q000150:complications* / Q000175:diagnosis* / Q000628:therapy; D008875:Middle Aged