|Year : 2012 | Volume
| Issue : 2 | Page : 135
Bilateral, symmetrical zygomatic mass
Abdullah Al-Mujaini1, Upender K Wali1, Dalal A Joda1, Asim Qureshi2
1 Department of Ophthalmology, College of Medicine and Health Sciences, Sultan Qaboos University Hospital, Muscat, Oman
2 Department of Pathology, College of Medicine and Health Sciences, Sultan Qaboos University Hospital, Muscat, Oman
|Date of Web Publication||4-Aug-2012|
Department of Ophthalmology, Sultan Qaboos University Hospital, PO- 38, PC-123, Muscat
Source of Support: None, Conflict of Interest: None
|How to cite this article:|
Al-Mujaini A, Wali UK, Joda DA, Qureshi A. Bilateral, symmetrical zygomatic mass. Oman J Ophthalmol 2012;5:135
A 39-year-old female presented with bilateral symmetrical subcutaneous swelling over both cheeks (zygomatic areas) since 18 months. The swelling is painless and has been almost stable for the past six months. There is no h/o double vision. On palpation the swellings are firm and mobile. Slit-lamp examination revealed normal anterior and posterior segment examinations. Visual acuity is 20/20 in each eye and extraocular movements are normal. MRI shows a homogeneous dense mass on both sides [Figure 1]. Macroscopy showed nodular gray and yellow tissue with solid yellow surface.
Histological sections revealed spindle cells with plump nuclei and thick collagenization of stroma. Inset shows CD 68. Immunohistochemical stain showed diffuse positivity [Figure 2]a. There are sheets of foamy macrophages. No nuclear atypia is seen [Figure 2]b.
| Question:|| |
Which one of the listed below is most likely the diagnosis?
- Dermoid cysts
- Fibrous histiocytoma
- Fibrohistiocytic neoplasms
- Wegener's granuloma
The followings points can be used as clues to establish the diagnosis.
- The disease tends to be more common in males than in females.
- It is common in head and neck region.
- Usually asymptomatic.
- Classified as a mesenchymal tumor of soft tissue.
- Characterized by spindle-shaped cells in storiform pattern.
[Figure 1], [Figure 2]