geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

De novo salivary malignant myoepithelioma: pathologic diagnosis of 19 cases


, : De novo salivary malignant myoepithelioma: pathologic diagnosis of 19 cases. Zhonghua Kou Qiang Yi Xue Za Zhi 39(4): 287-290

To study the pathological characteristics of salivary malignant myoepithelioma with characteristic multinodular architecture. To observe the histologic and cytologic characteristics of 19 cases of de novo salivary malignant myoepithelioma with multinodular growth pattern. Immunohistochemistry of calponin, SMA, S-100, GFAP, cytokeratin, PCNA was done on 11 cases and ultrastructure was observed on 3 cases. 19 tumors presented characteristic multinodular growth pattern, mostly accompanied by central necrosis. Neoplastic nests invaded the surrounding normal tissue and tumor cells displayed a variety of pleomorphism. Epitheliod cell was the most predominant cell type. Tumor-related extracellular matrix formation was revealed among tumor cells. Immunohistochemical staining demonstrated that the tumor cells were positive for calponin, SMA, S-100, GFAP, AE1/AE3, CKH and PCNA. Myofilaments were found in neoplastic cell cytoplasm under the electron microscope. Histologic and cytologic observation, immunostaining and ultrastructural study all supported the myoepithelial and malignant nature of the tumor.

US$29.90

PMID: 15454011


Other references

Mills, J., 2008: ARNM: Give us a voice and you will reap the rewards. Australian Journal of Rural Health 16(3): 185-185

Anismov, S.V.; Mareev (Mareyev), E.A. (Y.A., 2008: Geophysical studies of the global electric circuit. Physical mechanisms of formation of the global electric circuit (GEC) are considered and energy estimates are obtained for aeroelectric processes. Global thunderstorm activity, the electrodynamics of mesoscale convective systems, the electric fiel...

MacLellan, C.L.; Girgis, J.; Colbourne, F., 2004: Delayed onset of prolonged hypothermia improves outcome after intracerebral hemorrhage in rats. Prolonged hypothermia reduces ischemic brain injury, but its efficacy after intracerebral hemorrhagic (ICH) stroke is unresolved. Rats were implanted with core temperature telemetry probes and subsequently subjected to an ICH, which was produced b...

Vojvodic, D.; Jerolimov, V.; Celebic, A., 1996: Prosthetic rehabilitation of a cleft palate patient: a clinical report. Journal of Prosthetic Dentistry 76(3): 230-232

Hamissou, M.; Smith, A.C.C.rter, R.E.; Triplett, J.K., 2013: Comparative Analyses of Some Antioxidants and -glucosidase Activities in Bitter Gourd Momordica charantia and Zucchini Cucurbita pepo Extracts. The enzymatic and non-enzymatic antioxidative capacities of bitter gourd (Momordicacharantia) and zucchini (Cucurbitapepo) were investigated in water extracts and chemical buffer extracts. Bitter gourd and zucchini fruits were purchased from a far...

Richter, E.A.; Jensen, P.; Kiens, B.; Kristiansen, S., 1998: Sarcolemmal glucose transport and GLUT-4 translocation during exercise are diminished by endurance training. Glucose utilization during exercise of a given submaximal power output is decreased after endurance training. The aim of the present study was to elucidate the mechanisms behind this phenomenon by utilizing the sarcolemmal giant vesicle technique....

Windaus, A.; Holtz, F., 1927: Experimental rickets of rats, and its relation to ergosterol. The experimental technique is described. McCollum's diet 3143 was used and x-ray examination was the chief method of determining the extent of calcification, though histological preparations were also made. At least 18 rats are required for a...

Waldbott, G.L., 1964: Fluoride And Optic Neuritis. British Medical Journal 2(5414): 945-945

Witkowski A., 1985: The structure of groups and the numbers of fish populations in the river nysa klodzka poland upper catchment basin. An ichthyological investigation was carried out using a current generator at 90 stations in 24 rivers and streams of the River Nysa Klodzka upper catchment basin (southwestern Poland). The occurrence of 22 fish species with a predominance of the b...

Kuno E., 1991: Sampling and analysis of insect populations. Mittler, T E , F J Radovsky And V H Resh (Ed ) Annual Review Of Entomology, Vol 36 Ix+703p Annual Reviews Inc : Palo Alto, California, Usa Illus Maps 285-304