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Figure 1.
Ultrasonographic, Clinical, Computed Tomographic, and Magnetic Resonance Images
Ultrasonographic, Clinical, Computed Tomographic, and Magnetic Resonance Images

A, The 4.5 × 4.2 × 3.0-cm mass on a prenatal ultrasonographic scan at 37 weeks’ gestation. B, Clinical image from day 1 of life. C, Sagittal computed tomographic image showing globe displacement and compression by the mass. D, Postnatal sagittal magnetic resonance image showing a large variegated lesion with patchy intralesional hyperattenuations consistent with hemorrhage.

Figure 2.
Histopathologic Findings and Clinical Image
Histopathologic Findings and Clinical Image

A, The tumor is cellular and composed of plump and spindle-shaped fibroblast-type stromal cells with a moderate amount of slightly eosinophilic cytoplasm (hematoxylin-eosin, original magnification ×400). B, The fibroblast-type cells stained for vimentin only. Fluorescence in situ hybridization confirmed the ETV6-NTRK3 translocation specific for congenital infantile fibrosarcoma. Other markers, including CD99, actin, desmin, myogenin, anaplastic lymphoma kinase 1, myeloperoxidase, CD117, S-100 protein, and BAF47, were negative or nonsupportive of other mesenchymal tumors (vimentin, original magnification ×400). C, Immunohistochemical staining for CD163 highlights a prominent reactive inflammatory component, mostly histiocytes (CD163, original magnification ×400). D, Clinical image at age 10 months.

1.
Coffin  CM, Jaszcz  W, O’Shea  PA, Dehner  LP.  So-called congenital-infantile fibrosarcoma: does it exist and what is it? Pediatr Pathol. 1994;14(1):133-150.
PubMedArticle
2.
Ferrari  A, Orbach  D, Sultan  I, Casanova  M, Bisogno  G.  Neonatal soft tissue sarcomas. Semin Fetal Neonatal Med. 2012;17(4):231-238.
PubMedArticle
3.
Leung  E, Diaz-Barbosa  M, Alabiad  C,  et al.  Prenatal ultrasonographic detection of ophthalmic diseases. J Pediatr Ophthalmol Strabismus. 2012;49:e26-e29.
PubMedArticle
4.
Dumont  C, Monforte  M, Flandrin  A, Couture  A, Tichit  R, Boulot  P.  Prenatal management of congenital infantile fibrosarcoma: unexpected outcome. Ultrasound Obstet Gynecol. 2011;37(6):733-735.
PubMedArticle
5.
Steelman  C, Katzenstein  H, Parham  D,  et al.  Unusual presentation of congenital infantile fibrosarcoma in seven infants with molecular-genetic analysis. Fetal Pediatr Pathol. 2011;30(5):329-337.
PubMedArticle
6.
Bourgeois  JM, Knezevich  SR, Mathers  JA, Sorensen  PHB.  Molecular detection of the ETV6-NTRK3 gene fusion differentiates congenital fibrosarcoma from other childhood spindle cell tumors. Am J Surg Pathol. 2000;24(7):937-946.
PubMedArticle
Research Letter
July 2013

Prenatal Presentation of Fronto-orbital Congenital Infantile FibrosarcomaA Clinicopathologic Report

Author Affiliations
  • 1Department of Ophthalmology, BC Children’s Hospital, Vancouver, British Columbia, Canada
  • 5Division of Pediatric Ophthalmology, Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, British Columbia, Canada
  • 6Division of Oculoplastics/Orbit, Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, British Columbia, Canada
  • 3Division of Plastic Surgery, BC Children’s Hospital, Vancouver, British Columbia, Canada
  • 7Division of Plastic Surgery, Department of Surgery, University of British Columbia, Vancouver, British Columbia, Canada
  • 4Division of Pediatric Hematology/Oncology/Blood and Marrow Transplantation, BC Children’s Hospital, Vancouver, British Columbia, Canada
  • 8Division of Hematology/Oncology/Blood and Marrow Transplant, Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
  • 2Department of Anatomical Pathology, BC Children’s Hospital, Vancouver, British Columbia, Canada
  • 9Department of Pathology, University of British Columbia, Vancouver, British Columbia, Canada
JAMA Ophthalmol. 2013;131(7):965-967. doi:10.1001/jamaophthalmol.2013.1934

Congenital infantile fibrosarcoma (CIFS) is a mesenchymal tumor that occurs in the first year of life and rarely involves the orbit. We describe a patient with a prenatal presentation of orbital and forehead CIFS.

Report of a Case

A prenatal ultrasonographic scan at 37 weeks’ gestation showed a large right frontal mass with orbital involvement (Figure 1A), prompting early cesarean delivery. At birth, the mass was 9 × 7 × 4 cm, firm, nonpulsatile, and opaque, with dark and vascular discoloration inferiorly (Figure 1B). Postnatal ultrasonography, computed tomography, and magnetic resonance imaging showed a variegated soft-tissue mass at the glabella extending into the right superomedial orbit and displacing the right globe downward (Figure 1C and D). The anterior tables of both frontal bones were thinned, including a 5-mm-diameter bony defect with associated periosteal thickening. On day 8, the lesion was surgically excised, with preservation of pseudocapsule integrity except in the deep orbit, where the tumor tail was excised piecemeal. The frontal defect was reconstructed with local flaps.

Morphological, immunohistochemical, and molecular features were consistent with a diagnosis of CIFS. Fluorescence in situ hybridization confirmed translocation involving ETV6 on chromosome 12 and NTRK3 on chromosome 15, supporting this diagnosis (Figure 2A-C). One year postoperatively, there has been no clinicoradiological evidence of CIFS recurrence (Figure 2D). Visual acuities are equal and ocular movements are full without strabismus. The cranial defect closed spontaneously. The cosmetic appearance is excellent.

Comment

Congenital infantile fibrous sarcoma is a mesenchymal spindle cell tumor found in infants. Forty percent of cases are diagnosed at birth or in utero, mainly affecting the extremities.1,2 Rarely it can be identified on prenatal ultrasonographic scans.3 Prenatal death has been reported from intrauterine CIFS rupture.4

It is a rare cause of orbital mass in infancy. Treatment is usually total surgical excision. Fortunately, fewer than 10% metastasize.2 Neoadjuvant chemotherapy is sometimes used to minimize mutilating effects of surgery.2 Postresection adjuvant chemotherapy is occasionally required. The local recurrence rate is 40% to 50%.5

Large orbital masses rarely present at birth. Differential causes include teratoma, rhabdomyosarcoma, neuroblastoma, and granulocytic sarcoma, a manifestation of leukemia.2 Rarer causes include malignant rhabdoid tumor, infantile solitary myofibroma, and congenital fibromatosis or myofibromatosis. Hemangioma, dermoid cyst, and venous-lymphatic malformation are other differential diagnoses of orbital mass in infancy.

Sarcomas and fibrous tumors of infancy have similar histological findings and are differentiated by immunohistochemistry and molecular tests. The presence of chromosomal translocation t(12;15)(p13;q25) for an ETV6-NTRK3 fusion gene is specific for CIFS.5,6 This translocation is not present in other spindle cell tumors of infancy or childhood, including spindle cell or embryonal rhabdomyosarcoma, malignant fibrous histiocytoma, infant fibromatosis, aggressive fibromatosis, or myofibromatosis.6 In our patient, the morphological and immunohistochemical characteristics suggested granulocytic sarcoma (chloroma) because a reactive inflammatory component composed mostly of histiocytes and lymphocytes, uncommon in CIFS, was evident. However, the ETV6-NTRK3 translocation was diagnostic. This case illustrates the importance of looking for the ETV6-NTRK3 translocation, as treatment with intensive chemotherapy for granulocytic sarcoma would have resulted in significant unnecessary morbidity and possibly mortality for this infant.

To our knowledge, this is the first report of a prenatally identified orbital CIFS treated by vision-sparing surgical excision. Although the early result is excellent, long-term surveillance is planned owing to the risk of recurrence.

This case demonstrates that CIFS is a differential diagnosis of prenatal orbital mass. The ETV6-NTRK3 translocation is present in orbital CIFS. Early cesarean delivery and prompt surgical excision can provide excellent functional and cosmetic results.

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Article Information

Corresponding Author: Dr Lyons, Room A136, Department of Ophthalmology, BC Children’s Hospital, 4480 Oak St, Vancouver, BC V6H 3V4, Canada (clyons@cw.bc.ca).

Published Online: April 4, 2013. doi:10.1001/jamaophthalmol.2013.1934

Conflict of Interest Disclosures: None reported.

References
1.
Coffin  CM, Jaszcz  W, O’Shea  PA, Dehner  LP.  So-called congenital-infantile fibrosarcoma: does it exist and what is it? Pediatr Pathol. 1994;14(1):133-150.
PubMedArticle
2.
Ferrari  A, Orbach  D, Sultan  I, Casanova  M, Bisogno  G.  Neonatal soft tissue sarcomas. Semin Fetal Neonatal Med. 2012;17(4):231-238.
PubMedArticle
3.
Leung  E, Diaz-Barbosa  M, Alabiad  C,  et al.  Prenatal ultrasonographic detection of ophthalmic diseases. J Pediatr Ophthalmol Strabismus. 2012;49:e26-e29.
PubMedArticle
4.
Dumont  C, Monforte  M, Flandrin  A, Couture  A, Tichit  R, Boulot  P.  Prenatal management of congenital infantile fibrosarcoma: unexpected outcome. Ultrasound Obstet Gynecol. 2011;37(6):733-735.
PubMedArticle
5.
Steelman  C, Katzenstein  H, Parham  D,  et al.  Unusual presentation of congenital infantile fibrosarcoma in seven infants with molecular-genetic analysis. Fetal Pediatr Pathol. 2011;30(5):329-337.
PubMedArticle
6.
Bourgeois  JM, Knezevich  SR, Mathers  JA, Sorensen  PHB.  Molecular detection of the ETV6-NTRK3 gene fusion differentiates congenital fibrosarcoma from other childhood spindle cell tumors. Am J Surg Pathol. 2000;24(7):937-946.
PubMedArticle
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