Introduction Head and neck specimens are technically difficult because they often comprise a lot of different anatomic structures and corresponding surgical margins. In the following text, some practical guidelines are given that may be useful when confronted with these specimens.…
A large array of pathologies must be considered in the differential diagnosis of symptoms affecting the ocular tissues. The major causes of conjunctival, orbital, and intraocular diseases, the histopathological findings, and major differential diagnoses are described in this chapter. A…
Introduction There are few, if any, cutaneous neoplasms of the head and neck that are unique to that topographic region. Accordingly, a consideration of skin tumors in this area of the body must be rather expansive. However, there are some…
Introduction The head and neck region may be involved by benign or malignant diseases of hematopoietic origin. In this chapter, benign and malignant processes are separately described and lesions that are common or unique to the head and neck are…
Introduction Lesions of the ear reflect the composition and environmental exposures of the ear’s constituent parts: the skin, subcutaneous tissues, and cartilage of the external ear; the mucosa, ossicles and bone, nerves, muscles, and blood vessels of the middle ear…
The occurrence of a cervical mass is a rather common event in a wide variety of conditions, including congenital, inflammatory, and neoplastic diseases. The disease process may be located within lymph nodes or in the soft tissues of the head…
Introduction Odontogenic cysts and tumors represent a surprisingly diverse group of pathologic lesions of the jaws and overlying soft tissues. Basic familiarity with the histology and embryology of tooth formation can help in understanding the development and histopathology of these…
Introduction Soft-tissue tumors of the head and neck are very rare, as compared to the far more common epithelial tumors that arise in these anatomic locations. Although benign lesions doubtless account for the great majority of head and neck soft-tissue…
Acknowledgments The authors express their appreciation to Drs. William G. Totty and Murali Sundaran, Department of Radiology, Washington University School of Medicine, for their help in interpreting the illustrated radiologic studies; and to Dr. Michael Kyriakos, Department of Pathology, Washington…
Introduction Diseases of the thyroid and parathyroid glands are among the most common of all endocrine disorders. Affected patients may be relatively asymptomatic or may have evidence of hypofunction, hyperfunction, or a mass lesion. As a group, the diseases of…