MEETING No. 49 HELD ON JANUARY 15th AT THE SAN PIO X PRIVATE HOSPITAL, MILAN

Case 1
Case 2
Case 3
Case 4

Case 2


"PARA-VERTEBRAL LESION"
C. GALLI – Niguarda Hospital - Milano
(pict. by dr. Crippa)

Clinical history: in 1998 a 50y.o. man undergoes the excision, apparently complete, of an 8 cm para-vertebral lesion, which appears to rise from the posterior roots of the fourth and fifth metameres. A subsequent NMR is negative. Microscopical description: sections show areas with dense, hyaline stroma and areas with spindled cells, which form fascicles admixed with myxoid stroma (pict. 1 - pict. 2 - pict. 3 - pict. 4 - pict. 5 - pict. 6 - pict. 7 - pict. 8 - pict. 9).
Focally rhabdoid cells are noted (pict. 10).
There is no necrosis; the mitotic index is low. The neoplastic cells are negative with immunohistochemical staining for Cytokeratin, Alfa-Actin, Desmin, S100, Myogenin and CD34.

Diagnosis

pict. 1	pict. 2
pict. 3	pict. 4
pict. 5	pict. 6
pict. 7	pict. 8
pict. 9	pict. 10

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