Hematopoietic Tumors
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
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
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
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
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
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…
Tumors of Peripheral Nerve Sheath Origin
Tumors of Peripheral Nerve Sheath Origin The origin of many tumors in this text is linked, wholly or in part, to mesoderm. However, nerve sheath tumors arise from neuroectodermal tissue….
Fibro-Osseous, Osseous, Cartilaginous, Vascular, and Inflammatory Tumors of Orbital Bone
Fibro-Osseous, Osseous, Cartilaginous, Vascular, and Inflammatory Tumors of Orbital Bone This chapter covers an array of dysplastic, neoplastic, and odontogenic tumors affecting orbital bone. The fibro-osseous group of tumors is…
Tumors of Primitive Mesoderm, Striated Muscle, Adipose Tissue, and Smooth Muscle
Tumors of Primitive Mesoderm, Striated Muscle, Adipose Tissue, and Smooth Muscle Embryonal Rhabdomyosarcoma This malignant tumor in the orbit was once considered a rare tumor of striated muscle. The present…
Cysts and Celes
Cysts and Celes Developmental Cysts Dermoid Cysts This benign tumor runs the gamut from a small, superficial, surgically accessible, easily eradicable lesion to a large, deeply recessed, relentlessly expanding, bone-contouring…
