نتایج جستجو برای: plasmacytoid myoepithelioma
تعداد نتایج: 3816 فیلتر نتایج به سال:
Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare hematodermic myeloid malignancy that is known to be derived from plasmacytoid dendritic cells which are characterized by expression of CD4, CD56, and more specific markers such as CD123. Here, the authors present three cases of BPDCN diagnosed in the past two years and address different available diagnostic modalities such as morpho...
A 64-year old female, with no other history of interest, presented with anosmia and nasal obstruction which had evolved over several months. Diplopy had also appeared during the last month. On physical examination left-sided exophthalmos was observed. An endoscopy disclosed a tumour which completely obstructed the left nasal fossa. A biopsy of the lesion was performed, which caused moderate epi...
Salivary gland carcinomas are rare tumors, representing ~0.5% of all malignancies. Myoepithelioma is also uncommon, representing ~1% of all salivary gland tumors. Myoepithelial carcinoma (MC) is even rarer, representing 0.2 to 0.6% of all salivary gland tumors. We herein report a case of MC with multiple metastases arising from a submandibular gland in a 71-year-old male patient and present the...
Myoepitheliomas of the extremity are rare and usually benign, while a minority display malignant features. This case demonstrates the diagnosis and management of myoepithelioma within the carpal tunnel. Clinical and radiological tumour features were evaluated. Hematoxylin and eosin stained tumour sections were examined, and immunohistochemistry was performed. Histology revealed a nodular mass o...
We report a case of parachordoma (or myoepithelioma) of the right upper kidney in a 56 year-old male patient. Light microscopic features of the tumor exhibited epithelioid, glomoid, and spindle cells with eosinophilic and vacuolated cytoplasm as well as round to oval nuclei. These cells were embedded in a myxoid and hyaline stroma separated by a fibrous tissue with minimal cellular atypia and a...
Breast glands and salivary glands are tubulo-acinar exocrine glands that can manifest as tumours with similar morphological features, but that differ in incidence and clinical behaviour depending on whether they are primary in breast or salivary glands. Salivary gland-like tumours of the breast are of two types: tumours with myoepithelial differentiation and those devoid of myoepithelial differ...
Blastic plasmacytoid dendritic cell neoplasm is an aggressive malignancy derived from plasmacytoid dendritic cells. There is currently no accepted standard of care for treating this neoplasm, and therapeutic strategies have never been prospectively evaluated. Since blastic plasmacytoid dendritic cell neoplasm cells express high levels of interleukin-3 receptor α chain (IL3-Rα or CD123), antitum...
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