Results 261 to 270 of about 104,892 (304)

Neuroendocrine Carcinoma and Sinonasal Undifferentiated Carcinoma

2020
Sinonasal malignancies are uncommon, representing 1% of all neoplasms. A wide spectrum of malignant neoplasms arise from the sinonasal and skull base regions; the majority of these tumors are poorly or undifferentiated tumors manifesting overlapping features that result in diagnostic challenges.
Ahmed S, Abdelmeguid, Diana, Bell, Ehab Y, Hanna   +2 more
openaire   +2 more sources

Tracheobronchial Neuroendocrine Carcinoma in a Cat

Journal of Comparative Pathology, 2007
A tracheobronchial neuroendocrine carcinoma in a 10-year-old cat with a history of coughing, dyspnoea and anorexia is described. Endoscopic examination revealed a yellowish mass protruding into the trachea and partly obstructing the right bronchial lumen. Histological examination of biopsy samples revealed a hypercellular tumour consisting of sheets or
ROSSI, Giacomo, MAGI, Gian Enrico, TARANTINO C., TACCINI E., MARI, Subeide, PENGO G., RENZONI, Giacomo   +6 more
openaire   +3 more sources

Neuroendocrine carcinoma of the ampulla of Vater

Gastrointestinal Endoscopy, 2000
A 54-year-old man presented with jaundice. Total bilirubin was 29.4 mg/dL, and serum CA 19-9 was 2900.5 U/mL (normal 0-37). An abdominal CT revealed dilatation of intraand extrahepatic bile ducts and a relatively well-enhancing mass at the major duodenal papilla. Duodenoscopy showed a huge protruding mass having dirty-based ulcerative, necrotic orifice
C S, Shim, J H, Moon, Y D, Cho, M S, Lee, H B, Jeon, S Y, Jin, H K, Lee   +6 more
openaire   +2 more sources

Breast Carcinomas with Neuroendocrine Features (Neuroendocrine Carcinomas of the Breast)

2016
Breast carcinomas with neuroendocrine features (NEC) have only been recently recognized as a separate diagnostic entity by the World Health Organization classification. This category of tumors encompasses neuroendocrine tumor, well differentiated; neuroendocrine carcinoma, poorly differentiated/small cell carcinoma; and invasive breast carcinoma with ...
Marilin Rosa, Ujalla Sheikh, Aejaz Nasir
openaire   +1 more source

Breast Carcinomas with Neuroendocrine Differentiation

Ultrastructural Pathology, 1985
Twenty-two breast carcinomas with membrane bound granules by electron microscopy were tested for the presence of neuron specific enolase (NSE), neuropeptides and serotonin by immunohistochemistry. By light microscopy the cases studied included infiltrating ductal carcinomas, intraductal carcinomas, apocrine carcinomas, infiltrating lobular carcinomas ...
J M, Nesland, V A, Memoli, R, Holm, V E, Gould, J V, Johannessen   +4 more
openaire   +2 more sources

High-grade neuroendocrine carcinoma

Current Opinion in Pulmonary Medicine, 2014
This review presents an update on classification, diagnosis and potentially 'drugable' molecular alterations of small cell carcinoma (SCC) and large cell neuroendocrine carcinoma (LCNEC) of the lung.The main controversies in the classification of lung neuroendocrine tumors are: whether SCC and LCNEC should remain separated or should be unified into a ...
Giulio, Rossi, Alessandra, Bisagni, Alberto, Cavazza   +2 more
openaire   +2 more sources

Primary Neuroendocrine Carcinoma of the Liver

Ultrastructural Pathology, 1986
A case of primary neuroendocrine carcinoma in an unusual location, the liver, is reported. The neoplasm was composed of small, uniform cells that had distinct borders and grew in strands, ribbons and nests; its appearance resembled that of a carcinoid. Electron microscopy and special staining of the neoplastic cells confirmed the neuroendocrine nature ...
Y P, Xi, J Y, Yu
openaire   +2 more sources

Neuroendocrine Carcinomas of the Colon and Rectum

Diseases of the Colon & Rectum, 2004
This study was designed to review experience with neuroendocrine carcinomas of the colon and rectum at a single institution, with emphasis on the pathology and clinical characteristics of this uncommon malignancy.A study group of patients was identified from a prospective colorectal service database.
P E, Bernick, D S, Klimstra, J, Shia, B, Minsky, L, Saltz, W, Shi, H, Thaler, J, Guillem, P, Paty, A M, Cohen, W D, Wong   +10 more
openaire   +2 more sources

Primary Neuroendocrine Breast Carcinoma

Clinical Breast Cancer, 2012
Introduction In 2003, the World Health Organization (WHO) defined the neuroendocrine breast carcinoma (NEBC) as a subtype of invasive mammary carcinoma in which 50% of the tumor cells express neuroendocrine markers; immunohistochemical staining include chromogranin, synaptophysin, and neurospecific enolase (NSE).
Pablo, Menéndez, Esther, García, Lorenzo, Rabadán, Ricardo, Pardo, David, Padilla, Pedro, Villarejo   +5 more
openaire   +2 more sources

Neuroendocrine carcinoma of the ethmoid sinus

European Archives of Oto-Rhino-Laryngology, 1994
The paranasal sinuses are a rare site for neuroendocrine carcinoma (NEC). In contrast to the other regions, NEC of the sinuses has been reported to be recurrent and locally destructive. We report a case of NEC of the ethmoid sinuses. The patient was a 16-year-old Indian boy and was treated with radiation therapy to 6500 rad.
M R, Chaudhry, S, Akhtar, D S, Kim
openaire   +2 more sources