Blue Cell Tumour

(redirected from Blue Cell Tumor)
A usually malignant tumour, the cells of which are arranged in nests, sheets, and masses, and composed of relatively monotonous, round-to-oval, 8–15-µm in diameter cells with poorly defined cytoplasmic borders and strongly basophilic—blue—by H&E staining nuclei; embryologic origin often requires ancillary information provided by histologic pattern, immunohistochemistry, and rarely electron microscopy
DiffDx
Children Neuroblastoma, Ewing sarcoma, NHL, embryonal rhabdomyosarcoma
Adults Neuroendocrine tumour, mesenchymal chondrosarcoma, hemangiopericytoma, large cell lymphomas, Merkel cell tumour, small cell osteosarcoma, small/oat cell carcinoma, alveolar rhabdomyosarcoma
References in periodicals archive ?
Ultrasound-guided biopsy showed a small round blue cell tumor.
Primitive Neuro Ectodermal Tumor (PNET) is a malignant small round blue cell tumor exhibiting a variable degree of neural differentiation, which arises outside the brain, spinal cord and sympathetic nervous system.
Keratin and Vimentin Expression in Carcinomas and Mesenchymal Tumors Carcinomas That Frequently Express Both Renal cell carcinoma Anaplastic thyroid carcinoma Endometrial carcinoma Thyroid carcinoma Sarcomatoid carcinoma Mesothelioma Myoepithelial carcinoma Metaplastic breast carcinoma Carcinomas That Rarely Express Both Breast carcinoma Ovarian carcinoma Gastrointestinal carcinoma Lung small cell carcinoma Lung non-small cell carcinoma Prostate carcinoma Mesenchymal Tumors That Frequently Express Both Synovial sarcoma Desmoplastic small round blue cell tumor Epithelioid sarcoma Epithelioid angiosarcoma Malignant rhabdoid tumor Leiomyosarcoma Chordoma Adamantinoma Table 4.
Based on above findings, a cytologic diagnosis of a small round blue cell tumor was given and we requested a USG-guided biopsy for classification and subtyping of tumor.
The differential diagnosis based on imaging findings may include rhabdomyosarcoma, Wilms tumor, carcinoid tumor, neuroblastoma, lymphoma, and desmo-plastic small round blue cell tumor.
A review of literature, reveals several cases of pilomatrixoma misinterpreted as trichilemmal cyst, epidermal inclusion cyst, granulomatous lesions, squamous and basal cell carcinoma, lymphomas, small round blue cell tumor, salivary gland and other appendageal tumors.
A striking finding in this study is the specificity of PHOX2B for NB in the small round blue cell tumor differential of childhood.
This tumor arises in the retina and is a small, round blue cell tumor that exhibits apoptosis, with rosette and fleurette formation.
A diagnosis of "malignant small blue cell tumor with necrosis" was made, and a larger biopsy for chromosome analysis was performed 2 weeks later.
Medulloblastomas with favorable versus unfavorable histology: how many small blue cell tumor types are there in the brain?
An anterior-chamber fine-needle aspiration biopsy showed a small, round blue cell tumor, consistent with retinoblastoma (Figure 2, A and B).