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When patients present to the emergency room with sudden onset of focal neurologic symptoms or altered consciousness, hemorrhagic stroke is a major focus of emergency diagnostic evaluation. The entities that compose hemorrhagic stroke, intracerebral and subarachnoid hemorrhage, are readily diagnosed with advanced imaging. This article reviews current imaging options for the detection of acute hemorrhage, along with the expected imaging findings for each modality. Common and unusual causes and their distinguishing imaging features are discussed. Imaging strategies and recent work in specific imaging findings that may guide patient management in the future are also addressed.

Soft tissue tumors of the neck are a heterogeneous group of neoplasms arising from adipose, muscular, and fibrous tissue. With the exception of lymphomas, they account for only a small fraction of neck masses. Nevertheless, accurate diagnosis is important since the behavior of these neoplasms differs markedly from each other and from other head and neck masses. Noninvasive imaging, usually with CT and MR imaging, plays an important role in diagnostic evaluation and treatment planning for these tumors. In some cases, imaging features may be suggestive of a single entity. In most cases, imaging is needed to assess the location and extent of the tumor prior to biopsy or excision. This article discusses imaging techniques used for such assessment, the imaging features that help to separate these neoplasms from other head and neck tumors, and the behavior and imaging features of each of the more common benign and malignant soft tissue tumors that occur in the neck.