Practical Radiological Anatomy
Format: PDF / Kindle (mobi) / ePub
Practical Radiological Anatomy is an illustrated and concise revision textbook for radiology trainees learning to interpret all modes of imaging.
The essential revision book for doctors training in radiology and preparing for the First FRCA exam, Practical Radiological Anatomy is also of great value to advanced radiology practitioners, nurse practitioners, emergency medicine doctors, and radiographers.
tympanic membrane marks the opening of the middle ear. Part of the middle-ear chamber extends above the tympanic membrane and is called the epitympanic recess. The incudomalleolar complex lies in the recess (Fig. 2.20). • The recess narrows posteriorly and then widens to open into the mastoid air cells. This has an hour-glass shape and is called the aditus or opening to the mastoid air cells. • The middle-ear cavity contains the ossicular chain of incus, malleus and stapes. • The malleus
sinus Internal occipital protuberance Parietal bone Groove for sagittal sinus Occipital bone Fig. 1.3 The skull base is divided into anterior cranial fossa, middle cranial fossa and posterior cranial fossa. The cranial nerves emerge through the skull base foramina. Neuroimaging 3 1 2 Fig. 1.4 Lateral skull radiograph of infant showing the anterior fontanelle (1) at the bregma, through which head ultrasound can be performed. This should close by age 2. (2) shows unerupted teeth in an
approximately 6 min afterwards. • Curves of enhancement of any lesion are generated. • The morphology, i.e. the shape of any abnormality, is the most important finding, but the enhancement curves provide additional information. Findings • Lesions that show rapid uptake of contrast and then rapid washout are suspicious for malignancy (Fig. 3.64). (a) (b) (c) Fig. 3.64 Breast MRI showing (a) pre-T1, (b) post-T1 and (c) subtraction T1-weighted images. In the lateral aspect of the right breast
mass at the left hilum which is compromising the left pulmonary artery and left bronchus. There is collapse/consolidation of the lingula. There is a contralateral soft-tissue nodule in the right lung. No bony lesion seen. The CT findings are consistent with a left hilar bronchial tumour with invasion of the left bronchus and left pulmonary artery, and contralateral hilar lymphadenopathy, and a possible distant metastasis in the contralateral lung. Diagnosis Lingular consolidation and left
transverse sinus at the torcula, and left sigmoid and left jugular veins. 18 Practical Radiological Anatomy b 4 6 5 8 7 3 c 2 1 9 a Fig. 1.27 Time of Flight 3D circle of Willis MIP sagittal image to demonstrate anatomy. The four portions of the internal carotids are marked: cervical (1), petrous (2), cavernous (3) and intracerebral. The internal carotid artery divides into the middle cerebral artery (4) and the anterior cerebral artery (5), callosomarginal (6), pericallosal (7),