Ento Key

Meningioma If the reader were to think of just one tumor type that would cross multiple specialty lines it would probably be the meningioma. The meningioma is a very important…

Metastatic Carcinomas Clinical Features Over the time interval of our study of orbital tumors, 1948 to the present, I am impressed by the proliferation of publications describing carcinomas (chiefly adenocarcinomas)…

Secondary Epithelial Neoplasms The secondary epithelial neoplasms encroach upon the orbit from contiguous sites such as the nasal cavity and paranasal sinuses; lacrimal sac; caruncle; parotid gland; external surface of…

Primary Epithelial Neoplasms This chapter includes a host of epithelial neoplasms of various histologic types, which, with rare exceptions, arise from the functional components of the lacrimal gland. One exception…

Hematopoietic Tumors In this chapter, we will discuss a select group from a wide array of hematopoietic neoplasms that, in their extranodal, extralymphatic, intravascular, and extramedullary forms, often affect the…

Histiocytic Disorders This chapter includes non-neoplastic disorders featuring proliferations of histiocytes that may occur in any soft tissue or bony component of the body. Clinical entities of this group are…

Malignant Melanoma The update of the manuscript written on the subject of malignant melanoma for the third edition of Orbital Tumors (1994) was largely based on a publication of Lorenz…

Vascular Malformations Any orbital vascular problem, especially the arteriovenous (AV) communication engenders a good deal of anxiety not only on the part of the patient and the referring physician but…

Vascular Hamartomas, Hyperplasia, and Neoplasms This chapter includes an array of vascular tumors resulting from new formation of vessels, proliferation of tissue components of the vessel wall, and hyperplasia of…

Primitive Neuroectodermal Tumors In this chapter, we describe neoplasias of several neural, neuroglial, and neuroganglionic tissues that share an ancestry from the primitive epithelium of the neural tube. This heterogeneous…