This article provides an overview of rare orbital diseases. Congenital malformations,
inflammatory diseases, benign and malignant neoplasias are described. Although it …

Germ cell tumor can affect extragonadal sites. Teratoma is a well-recognized extragonadal
tumor in the orbit. Primary yolk sac tumor (YST) or endodermal sinus tumor of orbit is rare …

Endodermal sinus tumor, or yolk sac tumor, is the most common malignant neoplasm of
germ cell origin and usually occurs in infant testes or ovaries. 1 On rare occasions, the tumor …

Primary yolk sac tumor of the orbit is a rare entity. Orbital involvement is usually seen in
young children and proptosis is the commonest presentation. Aggressive orbital involvement …

This article provides an overview of rare orbital diseases. Congenital malformations,
inflammatory diseases, benign and malignant neoplasias are described. Although it …

Purpose The aim of this study is to report two cases of paediatric Yolk sac tumours (YST) of
the orbit and sinonasal tract, with a major review on the subject. Methods Two case reports …

Yolk sac tumour is a common malignant germ cell tumour, which usually occurs in the testes
or ovaries of infants. It can occasionally arise from a number of extragonadal sites …

Introduction: Motivation is important for many activities, such as learning. Having motivation,
especially about selection of a medical science discipline is a very sensitive subject …

In this chapter we review the epidemiologic and clinicopathologic features of extragonadal
germ cell tumors in locations other than mediastinum and the brain, with a special emphasis …

Pediatric germ cell tumors (GCT) of the head and neck are rare lesions with a highly variable
presentation. Teratomas are benign GCT that often present at birth, frequently resulting in …