Imaging of Neurocysticercosis
Neurocysticercosis (NCC) is an infection of the central nervous system by the Taenia solium larvae, and is the most common cause of acquired epilepsy in endemic regions. The natural history…
Fungal Infections of the Central Nervous System
Fungal infections of the central nervous system (CNS) frequently occur in the immunocompromised or debilitated host. Imaging findings are non-specific but may be organized into extra-axial, parenchymal, and vascular categories….
Imaging of Cerebritis, Encephalitis, and Brain Abscess
Imaging plays an important role in the diagnosis and treatment of brain abscess, pyogenic infection, and encephalitis. The role of CT and MRI in the diagnosis and management of pyogenic brain…
Epidemiology of Central Nervous System Infection
In cases of central nervous system infection, it is crucial for the neuroradiologist to provide an accurate differential diagnosis of the possible pathogens involved so that treating physicians can be…
Pitfalls in Image Guided Tissue Sampling in the Head and Neck
Image-guided tissue sampling is becoming increasingly important for management of head and neck cancers. Ultrasound-guided fine-needle aspiration (UG-FNA) is safe, effective, and has many advantages compared with palpation-guided FNA and…
Pitfalls in Image Guided Tissue Sampling in the Head and Neck
Image-guided tissue sampling is becoming increasingly important for management of head and neck cancers. Ultrasound-guided fine-needle aspiration (UG-FNA) is safe, effective, and has many advantages compared with palpation-guided FNA and…
Pitfalls in the Staging of Cervical Lymph Node Metastasis
Lymph nodes status is an important predictor of prognosis in head and neck squamous cell carcinoma, making accurate staging critical. The physical examination of the neck is highly inaccurate. CT,…
Pitfalls in the Staging of Cancer of Thyroid
Thyroid cancer includes several neoplasms originating from the thyroid gland—from indolent and curable histologies of differentiated thyroid carcinoma to aggressive anaplastic thyroid carcinoma. Differentiation of thyroid nodules is problematic on…
Pitfalls in the Staging of Cancer of the Major Salivary Gland Neoplasms
The major salivary glands consist of the parotid, submandibular, and sublingual glands. Most neoplasms in other subsites in the head and neck are squamous cell carcinoma, but tumors of the…
Pitfalls in the Staging of Cancer of the Laryngeal Squamous Cell Carcinoma
Laryngeal carcinoma is a devastating malignancy that severely affects patients’ quality of life, with compromise of ability to talk, breathe, and swallow. Accurate tumor staging is imperative, because treatment plans…
