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Research Letters |

Orbital Chondromyxoid Fibroma FREE

Ludwig M. Heindl, MD; Kerstin U. Amann, MD; Arndt Hartmann, MD; Friedrich E. Kruse, MD; Leonard M. Holbach, MD
Arch Ophthalmol. 2009;127(8):1072-1074. doi:10.1001/archophthalmol.2009.175.
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Published online

Primary tumors of orbital bone are rare, constituting up to 2% of all orbital masses.1 Chondromyxoid fibroma (CMF) is one of the least common tumors of bone, composing less than 1% of bone tumors and less than 2% of benign bone tumors.2,3 Apart from brief case reports,46 orbital CMF has not been clearly documented in the ophthalmic literature. To our knowledge, we report for the first time the clinicopathological features and management options of an orbital CMF arising from the frontal bone.

A 37-year-old woman had slowly progressive swelling of the left upper eyelid temporally associated with occasional headache and shooting pain for 3 years. On examination, visual acuity was 20/20 OU. The left eye showed 4 mm of proptosis with downward displacement, mild blepharoptosis, and choroidal folds at the posterior pole (Figure 1A). Computed tomography disclosed a superotemporal, noninfiltrative orbital mass with erosion of the adjacent frontal bone (Figure 1B and C). Differential diagnosis included lacrimal gland tumors, atypical dermoid cysts, and benign fibro-osseous lesions such as osteoma, fibrous dysplasia, or ossifying fibromyxoid tumor of soft parts.

Place holder to copy figure label and caption
Figure 1.

Clinical features of an orbital chondromyxoid fibroma arising from the frontal bone in a 37-year-old woman. A, Slowly progressive proptosis, downward displacement, and mild blepharoptosis of the patient's left eye, of 3 years' duration. B, Axial computed tomographic scan showing a circumscribed, round to ovoid, superotemporal orbital mass with radio-dense margins and a lucent central component isodense to muscle tissue indenting the globe inferiorly. C, Axial computed tomographic scan with bone window settings clearly delineating the incompletely formed sclerotic rim surrounding the round to ovoid mass with focal erosion (arrow) and thinning of the adjacent frontal bone. D, Marked improvement of proptosis, downward displacement, and blepharoptosis without evidence of recurrence or metastasis 2 years after transcutaneous extraperiosteal orbitotomy with en bloc resection including the tumor, surrounding periosteum, and adjacent bony wall.

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The patient underwent transcutaneous extraperiosteal orbitotomy. Intraoperatively, the periosteum was separated by blunt dissection from the bone in the peripheral portions of the mass both superiorly and inferiorly. The mass proved to be located mainly in the extraperiosteal space, pushing the inferior and medial periosteal border into the orbital soft tissue. The tumor centrally showed a close connection to the bony wall. En bloc resection including the tumor, surrounding periosteum, and adjacent bony wall was performed.

Macroscopically, the mass measured 20 × 15 × 7 mm. Histopathological examination revealed a CMF (Figure 2A-C). The soft-tissue mass was surrounded inferomedially by periosteum. The periosteum showed calcification superiorly and laterally corresponding to the radio-dense margins on the computed tomographic scan. The lateral borders of the mass consisted of bone. The cellular elements displaying a low proliferation rate (MIB-1 < 1%) were positive for S-100B protein in the central chondroid area and positive for vimentin and smooth muscle actin in the peripheral fibroblastic area but negative for desmin, CD68, CD34, and CD31. Ultrastructural findings (Figure 2D and E) supported the diagnosis of CMF.

Place holder to copy figure label and caption
Figure 2.

Histopathological and ultrastructural findings of an orbital chondromyxoid fibroma arising from the frontal bone. A, Histopathological section showing an overview of the orbital mass surrounded in part by periosteum (arrows) and bony elements (arrowheads) (Masson trichrome, original magnification ×12.5). The letters indicate the locations of figure parts B, C, D, and E. B, Centrally located hypocellular area with spindle-shaped or stellate cells in a myxoid matrix (hematoxylin-eosin, original magnification ×200). C, Peripherally located hypercellular area with many rather uniform spindle-shaped cells and focal calcification (hematoxylin-eosin, original magnification ×100). D, Transmission electron microscopy of the central hypocellular area showing stellate chondroblastlike cells with irregularly shaped, euchromatin-rich nuclei with inconspicuous nucleoli, prominent dilated rough endoplasmic reticulum, bundles of intermediate filaments, and isolated lipid droplets (bar = 5 μm). E, Transmission electron microscopy of the peripheral hypercellular area showing rather spindle-shaped fibroblastic cells with oval nuclei and moderate amounts of rough endoplasmic reticulum (bar = 4 μm).

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Postoperatively, recovery was fast and unremarkable. Two years after surgery, the patient showed marked improvement of proptosis, downward displacement, and blepharoptosis without evidence of recurrence or metastasis (Figure 1D).

Chondromyxoid fibroma manifests most frequently in the second and third decades of life, more often in males than in females.2,3 The long bones are the most common site, followed by the flat bones and the bones of the hands and feet.3 Craniofacial involvement is relatively rare.3 Histopathological differential diagnosis includes chondrosarcoma, enchondroma, or chordoma.2

Chondromyxoid fibroma with orbital involvement has been reported only in brief case reports.46 Hashimoto et al4 and Cruz et al5 described a CMF of the ethmoid sinus destroying the medial orbital wall. Wolf et al6 reported an intracranial CMF of the frontal-sphenoid junction with secondary orbital involvement. In our patient, there was—to our knowledge for the first time—marked downward displacement and indentation of the globe with choroidal folds caused by progressive orbital tumor growth. Because the adjacent periosteum was intact, we elected to take an extraperiosteal approach, separating tumor and periosteum from bone as much as possible. In the area of close adhesion to the adjacent frontal bone, an en bloc resection including the tumor, surrounding periosteum, and adjacent bony wall was performed. Complete en bloc resection is important regarding both histopathological diagnosis and the prevention of tumor recurrence. Simple curettage may favor underdiagnosis and explain in part why the entity has been rarely documented.

In conclusion, CMF should be considered as a rare benign lesion in the differential diagnosis of primary orbital bone tumors.

Correspondence: Dr Heindl, Department of Ophthalmology and University Eye Hospital, University Erlangen-Nürnberg, Schwabachanlage 6, 91054 Erlangen, Germany (ludwig.heindl@uk-erlangen.de).

Financial Disclosure: None reported.

Previous Presentation: This study was presented at the 47th Annual Meeting of the European Ophthalmic Pathology Society; June 2008; Besançon, France.

Additional Contributions: Mathias Werner, MD, provided expert evaluation.

Selva  DWhite  VAO’Connell  JXRootman  J Primary bone tumors of the orbit. Surv Ophthalmol 2004;49 (3) 328- 342
PubMed Link to Article
Zillmer  DADorfman  HD Chondromyxoid fibroma of bone: thirty-six cases with clinicopathologic correlation. Hum Pathol 1989;20 (10) 952- 964
PubMed Link to Article
Wu  CTInwards  CYO’Laughlin  SRock  MGBeabout  JWUnni  KK Chondromyxoid fibroma of bone: a clinicopathologic review of 278 cases. Hum Pathol 1998;29 (5) 438- 446
PubMed Link to Article
Hashimoto  MIzumi  JSakuma  IIwama  TWatarai  J Chondromyxoid fibroma of the ethmoid sinus. Neuroradiology 1998;40 (9) 577- 579
PubMed Link to Article
Cruz  AAMesquita  IMBecker  ANChahud  F Orbital invasion by chondromyxoid fibroma of the ethmoid sinus. Ophthal Plast Reconstr Surg 2007;23 (5) 427- 428
PubMed Link to Article
Wolf  DAChaljub  GMaggio  WGelman  BB Intracranial chondromyxoid fibroma: report of a case and review of the literature. Arch Pathol Lab Med 1997;121 (6) 626- 630
PubMed

Figures

Place holder to copy figure label and caption
Figure 1.

Clinical features of an orbital chondromyxoid fibroma arising from the frontal bone in a 37-year-old woman. A, Slowly progressive proptosis, downward displacement, and mild blepharoptosis of the patient's left eye, of 3 years' duration. B, Axial computed tomographic scan showing a circumscribed, round to ovoid, superotemporal orbital mass with radio-dense margins and a lucent central component isodense to muscle tissue indenting the globe inferiorly. C, Axial computed tomographic scan with bone window settings clearly delineating the incompletely formed sclerotic rim surrounding the round to ovoid mass with focal erosion (arrow) and thinning of the adjacent frontal bone. D, Marked improvement of proptosis, downward displacement, and blepharoptosis without evidence of recurrence or metastasis 2 years after transcutaneous extraperiosteal orbitotomy with en bloc resection including the tumor, surrounding periosteum, and adjacent bony wall.

Graphic Jump Location
Place holder to copy figure label and caption
Figure 2.

Histopathological and ultrastructural findings of an orbital chondromyxoid fibroma arising from the frontal bone. A, Histopathological section showing an overview of the orbital mass surrounded in part by periosteum (arrows) and bony elements (arrowheads) (Masson trichrome, original magnification ×12.5). The letters indicate the locations of figure parts B, C, D, and E. B, Centrally located hypocellular area with spindle-shaped or stellate cells in a myxoid matrix (hematoxylin-eosin, original magnification ×200). C, Peripherally located hypercellular area with many rather uniform spindle-shaped cells and focal calcification (hematoxylin-eosin, original magnification ×100). D, Transmission electron microscopy of the central hypocellular area showing stellate chondroblastlike cells with irregularly shaped, euchromatin-rich nuclei with inconspicuous nucleoli, prominent dilated rough endoplasmic reticulum, bundles of intermediate filaments, and isolated lipid droplets (bar = 5 μm). E, Transmission electron microscopy of the peripheral hypercellular area showing rather spindle-shaped fibroblastic cells with oval nuclei and moderate amounts of rough endoplasmic reticulum (bar = 4 μm).

Graphic Jump Location

Tables

References

Selva  DWhite  VAO’Connell  JXRootman  J Primary bone tumors of the orbit. Surv Ophthalmol 2004;49 (3) 328- 342
PubMed Link to Article
Zillmer  DADorfman  HD Chondromyxoid fibroma of bone: thirty-six cases with clinicopathologic correlation. Hum Pathol 1989;20 (10) 952- 964
PubMed Link to Article
Wu  CTInwards  CYO’Laughlin  SRock  MGBeabout  JWUnni  KK Chondromyxoid fibroma of bone: a clinicopathologic review of 278 cases. Hum Pathol 1998;29 (5) 438- 446
PubMed Link to Article
Hashimoto  MIzumi  JSakuma  IIwama  TWatarai  J Chondromyxoid fibroma of the ethmoid sinus. Neuroradiology 1998;40 (9) 577- 579
PubMed Link to Article
Cruz  AAMesquita  IMBecker  ANChahud  F Orbital invasion by chondromyxoid fibroma of the ethmoid sinus. Ophthal Plast Reconstr Surg 2007;23 (5) 427- 428
PubMed Link to Article
Wolf  DAChaljub  GMaggio  WGelman  BB Intracranial chondromyxoid fibroma: report of a case and review of the literature. Arch Pathol Lab Med 1997;121 (6) 626- 630
PubMed

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