Radiology Key

Classification for pediatric renal tumors Nephroblastic tumors Nephroblastoma (Wilms’ tumor)  Favorable histology  Anaplasia (diffuse or focal) Nephrogenic rests and nephroblastomatosis Cystic nephroma and cystic partially differentiated nephroblastoma Mesoblastic nephroma Cellular…

Fig. 9.1 A 17-year-old female with appendiceal carcinoid. Transverse ultrasound shows an enlarged appendix (arrows) with surrounding echogenic fat. No discrete mass was identified even though at resection a 5…

Fig. 13.1 Multiple hyperpigmented macules and a basal cell carcinoma in a patient with xeroderma pigmentosum (Courtesy of Dr. A. Torrelo, Madrid) Patients with XP under 20 years of age…

Fig. 15.1 MPSNT arising from ganglioneuroma. A ganglionic tumor with low grade schwannoma cell stroma segues into a high grade spindle cell neoplasm, X400 Patients with MPNST tend to be…

Fig. 7.1 (a, b) Nasopharyngeal carcinoma. (a) Contrast-enhanced CT in a teenage boy demonstrating an asymmetric enhancing right nasopharyngeal with extension into the retropharyngeal soft tissues. A right maxillary retention…

Fig. 14.1 Diagram of normal eye anatomy in the axial plane. The anterior chamber, located anterior to the lens, extends from cornea to iris. The posterior chamber extends from the…

Fig. 8.1 NUT midline carcinoma. Histology consists of an undifferentiated neoplasm with vague epithelioid features Prognostic Features With few exceptions, NUT carcinomas are highly lethal malignancies. Most patients die within…

Fig. 2.1 These (a) anterior-posterior (AP) and (b) lateral femur radiographs of a patient with osteosarcoma reveal features typical of a malignant bone tumor including Codman triangles (arrows) and sunburst…

Fig. 1.1 CD99 immunohistochemistry in a case of Ewing sarcoma family tumor demonstrates diffuse strong expression of the CD99 antigen by tumor cells Techniques to produce quality antibodies for clinical…