undifferentiated carcinoma

undifferentiated carcinoma

An epithelial malignancy that lacks morphologic–by LM or functional indicators of its embryonic origin, which may arise in the lungs, larynx, bronchus, esophagus, colon, urinary bladder, uterine cervix, salivary glands Examples Anaplastic carcinoma, 'monstrocellular' carcinoma, oat/small cell carcinoma. See Anaplastic carcinoma.
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By definition, some entities are site specific, such as sinonasal undifferentiated carcinoma and parathyroid carcinoma, while other entities may arise from multiple sites, such as mucosal melanoma.
The most common histopathological type was squamous cell carcinoma (n=118), followed by adenocarcinoma (n=102), small cell carcinoma (n=52) and large cell carcinoma (n= 19); and undifferentiated carcinoma was detected in 4 patients (Table 5).
Adenomyoepithelioma of the breast with undifferentiated carcinoma component.
Long-term results of ethmoid squamous cell or undifferentiated carcinoma treated with radiotherapy with or without surgery.
Common differential diagnosis of ONB include some high grade carcinoma of sinonasal origin including sinonasal undifferentiated carcinoma (SNUC), non-nasopharyngeal carcinoma (NPC), sinonasal neuroendocrine carcinomas (SNEC) and small round blue cell tumors including Ewing's sarcoma, rhabdomyosarcoma, lymphoma, malig- nant melanoma.
Adenocarcinoma was present in six (24%) cases, small-cell carcinoma in one patient (4%), metastatic carcinoma in one (4%), and the remaining six patients (24%) were diagnosed to have undifferentiated carcinoma of lung.
Initially we suspected this case to be a prostate cancer with lung metastasis, bearing aggressive histology such as that of small cell carcinoma or undifferentiated carcinoma.
Sinonasal undifferentiated carcinoma (SNUC) has an aggressive clinical course and present with an advanced stage neoplasm.
Primary undifferentiated carcinoma of nasopharyngeal type including lymphoepithelial carcinoma, small cell undifferentiated carcinoma, and large cell undifferentiated carcinoma is rarely found in salivary gland malignancies.
Pathological examination showed an undifferentiated carcinoma.
On the contrary in females the incidence rate for small cell non- small cell and carcinoid were peaking in the 2008 but in 2009 a decrease was seen in these carcinoma types and an increase was noticed in the incidence rate of adenocarcinoma squamous cell and undifferentiated carcinoma than 2008.

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