Undifferentiated high-grade pleomorphic sarcoma of the orbit: A case report

Undifferentiated high-grade pleomorphic sarcoma of the orbit: A case report

a r c h s o c e s p o f t a l m o l . 2 0 1 4;8 9(1 0):425–427 ARCHIVOS DE LA SOCIEDAD ESPAÑOLA DE OFTALMOLOGÍA www.elsevier.es/oftalmologia Short c...

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a r c h s o c e s p o f t a l m o l . 2 0 1 4;8 9(1 0):425–427

ARCHIVOS DE LA SOCIEDAD ESPAÑOLA DE OFTALMOLOGÍA www.elsevier.es/oftalmologia

Short communication

Undifferentiated high-grade pleomorphic sarcoma of the orbit: A case report夽 ˜ Gallego a,∗ , E. Mencía Gutiérrez a , M. Cámara Jurado b , M.S. Gallego Gallego c , A. Munoz E. Gutiérrez Díaz a a b c

Departamento de Oftalmología, Hospital 12 de Octubre, Madrid, Spain Departamento de Anatomía Patológica, Hospital 12 de Octubre, Madrid, Spain Departamento de Radiodiagnóstico, Hospital 12 de Octubre, Madrid, Spain

a r t i c l e

i n f o

a b s t r a c t

Article history:

Case report: A 27-year-old female presented to us with a complaint of proptosis of her right

Received 4 March 2013

eye. Imaging tests showed an extraconal mass in the medial orbital wall, which affected

Accepted 21 October 2013

the medial rectus. The tumor was removed and adjuvant radiotherapy was required. The

Available online 6 November 2014

histological examination showed an undifferentiated high-grade pleomorphic sarcoma of the orbit. There has not been recurrence after 6 years of follow-up.

Keywords:

Discussion: Undifferentiated high-grade pleomorphic sarcoma is an uncommon cause of

Orbital tumor

malignant orbital mass. It grows fast and can metastasize, so extension studies are required.

Undifferentiated pleomorphic

Surgical excision is the treatment of choice.

sarcoma

˜ © 2013 Sociedad Espanola de Oftalmología. Published by Elsevier España, S.L.U. All rights reserved.

Orbital mass Proptosis High-grade sarcoma

Sarcoma pleomorfo indiferenciado de alto grado orbitario: a propósito de un caso r e s u m e n Palabras clave:

˜ Caso clínico: Mujer de 27 anos con proptosis del ojo derecho. Las pruebas de imagen

Tumor orbitario

mostraron una lesión extracónica en el tercio anterior medial de la órbita que afectaba

Sarcoma pleomorfo indiferenciado

al músculo recto interno. Se realizó exéresis del tumor con radioterapia adyuvante. El diag-

Masa orbitaria

˜ nóstico fue de sarcoma pleomorfo indiferenciado de alto grado. Tras 6 anos de seguimiento

Proptosis

no se ha observado recidiva.

Sarcoma de alto grado



˜ Please cite this article as: Munoz Gallego A, Mencía Gutiérrez E, Cámara Jurado M, Gallego Gallego MS, Gutiérrez Díaz E. Sarcoma pleomorfo indiferenciado de alto grado orbitario: a propósito de un caso. Arch Soc Esp Oftalmol. 2014;89:425-427. ∗ Corresponding author. ˜ E-mail addresses: ali [email protected], [email protected] (A. Munoz Gallego). ˜ 2173-5794/$ – see front matter © 2013 Sociedad Espanola de Oftalmología. Published by Elsevier España, S.L.U. All rights reserved.

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a r c h s o c e s p o f t a l m o l . 2 0 1 4;8 9(1 0):425–427

Discusión: El sarcoma pleomorfo indiferenciado es una neoplasia maligna muy infrecuente en la región orbitaria. Tiene un rápido crecimiento local y es potencialmente metastatizante, por lo que debe hacerse estudio de extensión. El tratamiento de elección es la cirugía. ˜ de Oftalmología. Publicado por Elsevier España, S.L.U. Todos © 2013 Sociedad Espanola los derechos reservados.

Introduction

Discussion

Undifferentiated high-grade pleomorphic sarcoma, a term accepted in 2002 by the World Health Organization and otherwise known as fibrous malignant histiocytoma, is a malignant neoplasia of mesenchymal origin with an incidence of 1–2 for every 100,000 inhabitants.1 Orbit location is rare and accounts for only 1% of the orbit tumors.2 Most frequently it affects Caucasian males between the sixth and eighth decade of life. It exhibits rapid local growth and is potentially metastasizing.1

Undifferentiated high-grade pleomorphic sarcoma is a malign tumor of mesenchymal origin with predisposing factors such as traumatic or surgical history, ionizing radiation, fractures, osteonecrosis, Paget disease, non-ossifying fibroma and fibrous dysplasia.3 From the anatomopathological viewpoint, the said tumor does not exhibit specific morphology and the diagnostic is based on exclusion. Locoregional and systemic extension study must always be carried out. In radiological imaging studies these tests are usually circumscribed and contrast capturing.2 Infiltration of the extraocular muscles has been described and on some occasions it can also produce bone erosion.2 For this reason, the diagnostic possibility of undifferentiated high-grade pleomorphic sarcoma must be taken into account with the thickening of a single extraocular muscle in any patient who does not have thyroid disease.2 The differential diagnostic also includes other causes of differentiated orbitary mass such as cavernous hemangioma, tumors derived from nerve sheaths and other vascular neoplasia such as hemangiopericytoma.2 The patient of the present case did not have thyroid disease and the image tests revealed a tumor invading the middle rectus muscle

Clinic case A 27-year-old female visited our service with upper right eyelid proptosis and edema. The rest of the ophthalmological exploration was within normal ranges. The patient did not have personal and familial antecedents of interests. Basic analytics were performed with thyroid hormones with normal results. Computerized tomography (CT) and magnetic resonance of the orbit revealed the existence of a contrast-capturing extracone lesion having a size of 1.1 × 0.7 × 3 cm in the medial anterior third of the orbit involving the internal rectus muscle without bone involvement (Fig. 1). The tumor was excised by means of transcanalicular orbitotomy with inferior transconjunctival expansion without requiring muscle deinsertion. In the post-surgery period the patient exhibited internal rectus paresis. Anatomopathological analysis revealed a clearly circumscribed and pseudo-encapsulated 1.5 × 1 cm nodule, peripheral inflammatory and hemorrhagic areas. The nodule comprised a proliferation of numerous fusiform cells in a vascularized collagen extracellular matrix. The said fusiform cells were arranged forming a storiform or “Malta cross” pattern (fig. 2). Immunohistochemistry tests were positive for vimentin, actin 1A4 and actin HHF35 (fig. 3). Staining with marker Ki-67/MIB-1, a prognostic aggressiveness marker, was 20%. Therefore, the final diagnostic was undifferentiated highgrade pleomorphic sarcoma. The remote extension study (chest, abdomen and pelvis CT) was negative. Post-surgery orbit imaging tests demonstrated the persistence of irregular thickening in the medial orbital area with homogeneous contrast capture. Accordingly it was decided to establish radiotherapy treatment on the tumor, with a total dose of 54 Gy. After 6 years follow-up with imaging tests for screening tumor relapse and metastasis, no signs of the disease have been identified. At present, the patient exhibits a very slight limitation of right eye supraduction in adduction without clinical significance.

Fig. 1 – CT image with intravenous contrast showing a contrast-capturing extraconal lesion in the medial wall of the right orbit involving the internal rectus muscle without producing bone erosion. (A) Coronal plane. (B) Transversal plane.

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impossible. In the present case a broad excision was decided and, as the tumor did not produce bone erosion and the MIB-1 2 tumor aggressiveness prognostic marker was low, subsequent surgery was not performed due to the morbidity it could produce and to the functional and cosmetic cost in a young person. In the series by Delaney et al., 85% of the patients treated with partial resection and subsequent radiotherapy were controlled after 5 years.4 Neoadjuvant chemotherapy could reduce tumor size prior to surgery.3 Local recurrence is frequent but locoregional remote metastasis is rare. In case of remote extension, the treatment of choice is surgery with adjuvant chemotherapy and required subsequent radiotherapy.5 Regular follow-up of patients is essential for controlling possible local relapses or remote metastasis.4 The patient of this case did not exhibit signs of tumor relapse or metastasis after a follow-up of 6 years. Fig. 2 – (A) Histological section of the surgical piece with hematoxylin–eosin staining and increase of 1.25× showing a well-defined pseudo-encapsulated nodule with inflammatory peripheral patches and hemorrhagic areas. (B) The same piece with larger increase (20×) showing fusiform cells arranged in storiform or “Malta cross” pattern.

Fig. 3 – Two histological sections for immunohistochemical study of the surgical piece. (A) With positive staining for vimentin. (B) Positive staining for actin HHF35.

without causing bone erosion, which was a positive prognosis factor. The treatment of choice is surgical resection with safety margins although in this location complete excision is

Conflict of interests No conflict of interests has been declared by the authors.

references

1. Fletcher CDM, van den Berg E, Molenaar WM. Pleomorphic malignant fibrous histiocytoma/Undifferentiated high grade pleomorphic sarcoma. In: World Health Organization Classification of tumours. Pathology and genetics of tumours of soft tissue and bone. Lyon: IARC Press; 2002. p. 120–2. 2. Jacom-Hood J, Moseley IF. Orbital fibrous histiocytoma: computed tomography in 10 cases and a review of radiological findings. Clin Radiol. 1991;43:117–20. 3. Pobirci DD, Bogdan F, Pobirci O, Petcu CA, Ros¸ca E. Study of malignant fibrous histiocytoma: clinical, statistic and histopatological interrelation. Rom J Morphol Embryol. 2011;52 Suppl. 1:385–8. 4. Delaney TF, Kepka L, Goldberg SI, Hornicek FJ, Gebhardt MC, Yoon SS, et al. Radiation therapy for control of soft-tissue sarcomas resected with positive margins. Int J Radiat Oncol Biol Phys. 2007;67:1460–9. 5. Vuity D, Bodgan S, Csurgay K, Sapi Z, Nemeth Z. Malignant fibrous histiocytoma/undifferenciated high-grade pleomorphic sarcoma of the maxillary sinus. Report of a case and review of literature. Pathol Oncol Res. 2013;19:605–9.