Myoepithelioma metastatic to the orbit.
OBJECTIVE
To report a case of myoepithelioma metastatic to the orbit in an 11-year-old boy.


METHODS
Interventional case report. An 11-year-old white male with a history of resection of a left thigh mass 10 months previously presented with a painless, rapid swelling of the left upper eyelid. Computed tomography scan and incisional biopsy of the orbital mass were performed.


RESULTS
Immunohistochemical stains of the tumor in the left orbit and the previously resected mass were consistent with myoepithelioma. As a result of widespread metastases, the patient died 4 months after initial presentation to the eye clinic.


CONCLUSIONS
Myoepithelioma should be included in the differential diagnosis of neoplasms that can metastasize to the orbit in the pediatric age group.
Waldrop
C
C
Department of Ophthalmology, University of Maryland, Baltimore, Maryland, USA. campbellwaldrop@aol.com
Kathuria
S S
SS
Toretsky
J A
JA
Sun
C C
CC
D000199:Actins / Q000378:metabolism; D014408:Biomarkers, Tumor / Q000378:metabolism; D002135:Calcium-Binding Proteins / Q000378:metabolism; D002648:Child; D006801:Humans; D007124:Immunoenzyme Techniques; D008297:Male; D008840:Microfilament Proteins; D018396:Mucin-1 / Q000378:metabolism; D009208:Myoepithelioma / Q000209:etiology* / Q000378:metabolism / Q000601:surgery; D009363:Neoplasm Proteins / Q000378:metabolism; D009918:Orbital Neoplasms / Q000378:metabolism / Q000556:secondary* / Q000601:surgery; D009418:S100 Proteins / Q000378:metabolism; D012983:Soft Tissue Neoplasms / Q000378:metabolism / Q000473:pathology*; D014057:Tomography, X-Ray Computed; D014746:Vimentin / Q000378:metabolism; D000096985:Calponins
D000199:Actins; D014408:Biomarkers, Tumor; D002135:Calcium-Binding Proteins; D008840:Microfilament Proteins; D018396:Mucin-1; D009363:Neoplasm Proteins; D009418:S100 Proteins; D014746:Vimentin; D000096985:Calponins