Is. Kostopoulos et al., CHONDROMA OF PAROTID-GLAND - CLINICAL, HI STOLOGICAL AND IMMUNOHISTOCHEMICAL FINDINGS IN A UNIQUE CASE, Laryngo-, Rhino-, Otologie, 72(5), 1993, pp. 261-263
A unique extraskeletal chondroma is reported which occupied the entire
right parotid gland of a 32-year old man. The midsized tumour was har
d and well circumscribed. Its histological pattern was typical of a ch
ondroma with lobules of hyaline cartilage and several areas of calcifi
cation. The chondrocytes were positive for S-100 protein and negative
for smooth muscle and myoepithelial markers. Epithelial neoplastic ele
ments, as found in pleomorphic adenomas, were not detected in the pres
ent case, neither morphologically nor immunohistochemically.