Spinal metastasis of endometrial stromal sarcoma: clinicopathological features and management.
BACKGROUND
Endometrial Stromal Sarcoma (ESS) is a rare uterine malignancy which often metastasizes several years after initial diagnosis. Thoracic spine is a rare ESS metastatic site and its proper management is still not a consensus. We discuss the histopathological features and the management strategies through an illustrative case of a 77 year-old woman with metastasis to the thoracic spine 13 years after total hysterectomy for ESS.


METHODS
Review of the literature and identification of 5 patients, including our present case, with ESS involving the spinal cord. We discuss the outcomes achieved after each therapy. In our case, the patient presented a mass involving the thoracic spinal canal constricting the spinal cord at T7 level. A two-level decompression laminectomy was performed and the lesion was partially excised.


RESULTS
The histopathological along with the immunohistochemical profile mitotic rate indicated the endometrial stromal cells origin of the tumor, confirming the diagnosis of a low-grade ESS metastasis. The patient was managed with surgery in combination with postoperative radiation therapy.


CONCLUSIONS
The small number of published cases precludes definitive conclusions regarding standard management. However, it seems that treatment of metastatic ESS to the spine matches the same general concepts of spine metastasis, namely surgery followed by radiation therapy, due to clinical improvement and long-term disease control of the reported cases. Hormonal therapy may be considered in recurrent disease with strong expression of estrogen and progesterone receptors. However, these findings need confirmation in larger studies.
Department of Neurosurgery, University of Tübingen, Eberhard Karls University Hospital, Hoppe-Seyler-Strasse 3, D-72076 Tübingen, Germany. lbatista@nmr.mgh.harvard.edu
Leonardo Moura
LM
Batista
Carlos Henrique
CH
Carvalho
Marcus André
MA
Acioly
Alireza
A
Gharabaghi
Kristofer Fingerle
KF
Ramina
Jens
J
Schittenhelm
Marcos
M
Tatagiba
D000368:Aged; D016889:Endometrial Neoplasms / Q000473:pathology* / Q000601:surgery*; D005260:Female; D006801:Humans; D007044:Hysterectomy; D018203:Sarcoma, Endometrial Stromal / Q000473:pathology* / Q000601:surgery*; D013120:Spinal Cord Neoplasms / Q000556:secondary* / Q000601:surgery*; D016896:Treatment Outcome