Radiology Key

Fig. 7.1 The original model U GK unit as installed in the USA in the late 1980s. (a) The side view of the unit and couch; (b) the helmet collimator…

Fig. 31.1 Sagittal contrast-enhanced T1-weighted MRI scan showing a large cystic craniopharyngioma Fig. 31.2 On last follow-up 1 year after Gamma knife radiosurgery for residual tumor, the patient remains stable…

Fig. 47.1 Treatment algorithm for intracranial AVMs As an alternative to surgical resection, SRS has been shown to be a safe and effective method to manage patients with cerebral AVMs….

Fig. 65.1 Megavoltage dose equivalent in rads (cGy) versus number of treatment fractions for cases of brain radionecrosis. These data were used to derive the neuret formula. Most cases of…

Fig. 27.1 Schloffer’s transnasal transsphenoidal operation. (a) Incision made along the left nasolabial furrow around the left ala nasi and continued up to the glabella. (b) The incision cuts through…

Fig. 12.1 (a) Preoperative CT scan of 1 cm breast cancer. Lumpectomy demonstrated a 1 × 0.7 × 0.5 cm invasive cancer with 7 × 7 × 2 cm lumpectomy specimen with margin of 2 mm. (b) Postoperative…

WHO grade Histological variants % of total meningiomas I—Benign Transitional, fibroblastic, meningothelial, psammomatous, angiomatous, microcystic, secretory, lymphoplasmacyte-rich, metaplastic >90 % II—Atypical Clear cell, chordoid, atypical 5–7 % III—Malignant Anaplastic, papillary,…

Fig. 48.1 (a) Digital subtraction angiography demonstrating the three main components of an AVM: arterial feeding pedicles (small arrow), nidus (circle), draining vein (thick arrow) into the superior sagittal sinus….

  Persistent disease (n = 24) Recurrent disease (n = 24) All (n = 48) Gender Male (n) 17 18 35 Female (n) 7 6 13 Age <50 (n) 14 14 28 ≥50 (n) 10 10…

Fig. 40.1 Pathology slide of a chordoma Immunohistochemistry shows that almost all tumors stain positively for the epithelial membrane antigen, cytokeratins, S-100 proteins, and are negative for HMB-45 and desmin…