Pelvic schwannoma (large)
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A large heterogeneous mass in the pelvis is present with enhancing and cystic components.
Patient went on to have a resection.
The specimen is received in a plastic bag labelled with the patient's demographics and PELVIC TUMOUR. It consists of a large fragment of previously deflated cystic mass measuring 9 cm in diameter. The cystic wall is smooth with some areas of hemorrhage and varies in thickness between 1 and 2 cm.
Sections show an encapsulated benign spindle cell tumour with cystic elements. Antoni A and B areas are seen. Verocay body formation is focally prominent. A localized area of chronic inflammation composed of plasma cells and lymphocytes is seen, associated with hemosiderin.