By Adekunle M. Adesina M.D., Ph.D. (auth.), Adekunle M. Adesina, Tarik Tihan, Christine E. Fuller, Tina Young Poussaint (eds.)
Recent proof shows that the body structure and reaction to numerous medicines within the pediatric inhabitants differs from that of the grownup and needs to be preferred in an effort to absolutely deal with the future health wishes of the pediatric inhabitants. Atlas of Pediatric mind Tumors covers components starting from neuroimaging, using weigh down and contact preps in the course of introperative session, vintage histological positive aspects of mind tumors, tumor variations, and a miscellaneous crew of difficult tumors. Chapters include crucial diagnostic info and lines highlighting famous variations and their differential diagnoses. a piece on molecular pathology and electron microscopy can be integrated for every tumor type; in addition to a listing of vintage studies and cutting edge articles on all the tumor entities as advised examining on the finish of every bankruptcy. Created to fill a void within the perform of pediatric neuropathology, this functional and well-illustrated Atlas of Pediatric mind Tumors represents a set of fascinating, universal and weird tumors for a diagnostic workout via the reader.
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Extra resources for Atlas of Pediatric Brain Tumors
Anaplastic astrocytoma (WHO grade III): hypercellular astrocytomas that in addition to nuclear atypia, have increased mitotic activity. - Vascular proliferation and necrosis are absent. 6d,e). - Neuropil-rich islands that are surrounded by oligodendroglial-like cells may be encountered in rare infiltrative astrocytomas (grades II and III). These areas are characteristically positive for neural markers synaptophysin and Neu-N. - A note of caution in grading: - “Few mitoses are acceptable in a large sample of otherwise typical grade II astrocytoma, whereas detection of even a single mitotic figure within a tiny needle core biopsy would be grounds for upgrading to high grade astrocytoma” (at least anaplastic astrocytoma).
5. (a) Smear preparation of a diffuse astrocytoma containing moderately cellular fragments of tissue and cells with oval hyperchromatic nuclei and elongated fibrillar cytoplasmic processes. (b) This smear preparation of diffuse astrocytoma demonstrates the gemistocytic morphology, the tumor cells having plump cytoplasmic “bellies”, some with discernible short processes, and eccentric round to oval nuclei. (c and d) Cytologic preparations of high grade astrocytomas are much more hypercellular with cell crowding and overlap and atypical nuclei.
With gliomatosis, better survival is afforded by younger age and lower histologic grade. Suggested Reading Fisher PG, Breiter SN, Carson BS, Wharam MD, Weingart JD, Foer DR et al (2000) A clinicopathologic reappraisal of brain stem tumor classification. Cancer 89:1569–1576 Raffel C, Frederick L, O’Fallon JR, Atherton-Skaff P, Perry A, Jenkins RB et al (1999) Analysis of oncogene and tumor suppressor gene alterations in pediatric malignant astrocytomas reveals reduced survival for patients with PTEN mutations.