• Other accompanying signs of a benign follicular hyperplasia are well developed germinal centers with dark and light zones, in addition to numerous mitotic figures. (wikipedia.org)
  • Lymphoid proliferations are traditionally thought to be either benign conditions (reactive hyperplasia and lymphadenitis) or malignant lymphomas. (medscape.com)
  • Also included in our study were 157 non- ing, stringent precautions were taken to avoid cross-con- lymphoma frozen tissue specimens, including 110 benign tamination between samples. (cdc.gov)
  • However, if clinical, morphologic and molecular findings are not sufficient for diagnosis of a benign condition versus lymphoma, the descriptive term AtLP can be used. (medscape.com)
  • Distinction between atypical lymphoid proliferations with follicular pattern and follicular lymphoma. (medscape.com)
  • A group of disorders having a benign course but exhibiting clinical and histological features suggestive of malignant lymphoma. (lookformedical.com)
  • Pseudolymphoma is characterized by a benign infiltration of lymphoid cells or histiocytes which microscopically resembles a malignant lymphoma. (lookformedical.com)
  • Macrophages that contain debris from ingested lymphocytes are characteristic of a reactive follicular center in benign reactive lymphadenitis. (wikipedia.org)
  • AtLP is a descriptive term used when it is not possible for the pathologist to differentiate between the benign and the malignant nature of a given lymphoid infiltrate. (medscape.com)
  • They have some likelihood for subsequent transformation into lymphomas, and therefore AtLP occupy a middle ground between benign and malignant lymphoid proliferations. (medscape.com)
  • In the author's opinion, the use of this descriptive term AtLP may obviate the need to force some lymphoid proliferations (equivocal lesions or mimickers of lymphomas) into either the benign or malignant categories. (medscape.com)
  • Acute lymphadenitis had higher BF and BV than chronic inflammatory, lymphoid tuberculosis, sarcoidosis and malignant nodes. (cams.cn)
  • The BF of malignant nodes was markedly slower than that of acute lymphadenitis ( P =0.01), but faster than chronic inflammatory nodes ( P =0.04) and sarcoidosis ( P =0.03), with no significant difference compared with lymphoid tuberculosis. (cams.cn)
  • In this study, we investigated the presence of Merkel cell polyomavirus (MCPyV) was fi rst described MCPyV in benign lymph nodes and malignant lymphomas in 2008 ( 1 ) as a new human virus associated with in patients from Canada. (cdc.gov)
  • In the author's opinion, when confronted with a challenging lymphoproliferative lesion, the pathologist should marshall all resources available to interpret it as precisely as possible and therefore place it into one of the two categories: unequivocally benign condition or malignant lymphomas. (medscape.com)
  • It is impossible to distinguish between follicular adenoma and carcinoma on cytological grounds. (passmed.uk)
  • Features for the diagnosis of follicular carcinoma are capsular invasion and vascular invasion by tumour cells. (passmed.uk)
  • Follicular carcinoma tends to metastasize to lung and bone via the bloodstream. (passmed.uk)
  • This antibody is also used as a component of panels to differentiate benign and malignant breast lesions. (ijpmonline.org)
  • Additionally, nine cases of granulomatous lymphadenitis where found: six of which were secondary to granulomatous causes involving the breast (for example, silicone granuloma), one was idiopathic and one patient was diagnosed with cat-scratch disease. (springer.com)
  • Solitary or multiple benign hepatic vascular tumors, usually occurring in women of 20-50 years of age. (lookformedical.com)
  • If fine needle aspiration cytology (FNAC) suggests follicular neoplasm, thyroid lobectomy should be performed to establish the histopathological diagnosis. (passmed.uk)
  • Lymphocytes can disseminate viruses throughout a (10%) of 110 benign lymph nodes, including 8 (13.1%) of host and may provide sites of viral persistence. (cdc.gov)
  • Solitary or multiple benign cutaneous nodules comprised of immature and mature vascular structures intermingled with endothelial cells and a varied infiltrate of eosinophils, histiocytes, lymphocytes, and mast cells. (lookformedical.com)
  • Immunohistochemical staining for cytokeratin 5/6 was applied on cell block sections of 23 cases of benign and 25 cases of malignant breast lesions using avidin biotin peroxidase technique. (ijpmonline.org)
  • All benign lesions showed positive immunoreaction, with the staining index varying from 6-9, except lactating adenoma. (ijpmonline.org)
  • The staining reaction in the malignant lesions was only cytoplasmic and the intensity was significantly less than that of benign lesions. (ijpmonline.org)
  • TBMs are licensed (empowered) for phagocytosis by follicular dendritic cells (FDCs). (wikipedia.org)
  • Follicular cells are the thyroid cells responsible for the production and secretion of thyroid hormones. (passmed.uk)
  • PC-ALCL is one of the primary cutaneous CD30 + T-cell lymphoproliferative disorders, a wide spectrum of disease, with lymphomatoid papulosis (LyP) at the benign end of the spectrum and PC-ALCL at the malignant end. (medscape.com)
  • Nevertheless, sometimes AtLP are not necessarily premalignant and may very well represent a fully benign situation mimicking malignancy. (medscape.com)
  • Macrophages that contain debris from ingested lymphocytes are characteristic of a reactive follicular center in benign reactive lymphadenitis. (wikipedia.org)
  • [ 14 , 15 ] Demonstration of clonal lymphoid populations can support diagnosis of lymphomas and their absence favor benign conditions. (medscape.com)
  • In this study, we investigated the presence of Merkel cell polyomavirus (MCPyV) was fi rst described MCPyV in benign lymph nodes and malignant lymphomas in 2008 ( 1 ) as a new human virus associated with in patients from Canada. (cdc.gov)
  • 18. Cytokine production (IL-1 alpha, IL-1 beta, and TNF alpha) and endothelial cell activation (ELAM-1 and HLA-DR) in reactive lymphadenitis, Hodgkin's disease, and in non-Hodgkin's lymphomas. (nih.gov)
  • They have some likelihood for subsequent transformation into lymphomas, and therefore AtLP occupy a middle ground between benign and malignant lymphoid proliferations. (medscape.com)
  • In the author's opinion, when confronted with a challenging lymphoproliferative lesion, the pathologist should marshall all resources available to interpret it as precisely as possible and therefore place it into one of the two categories: unequivocally benign condition or malignant lymphomas. (medscape.com)
  • AtLP is a descriptive term used when it is not possible for the pathologist to differentiate between the benign and the malignant nature of a given lymphoid infiltrate. (medscape.com)
  • Acute lymphadenitis had higher BF and BV than chronic inflammatory, lymphoid tuberculosis, sarcoidosis and malignant nodes. (cams.cn)
  • The BF of malignant nodes was markedly slower than that of acute lymphadenitis ( P =0.01), but faster than chronic inflammatory nodes ( P =0.04) and sarcoidosis ( P =0.03), with no significant difference compared with lymphoid tuberculosis. (cams.cn)
  • TBMs are licensed (empowered) for phagocytosis by follicular dendritic cells (FDCs). (wikipedia.org)
  • The follicles contain activated B-cells, some T-cells, antigen-presenting follicular dendritic cells and the tingible body macrophages that phagocytose nuclear debris. (greek.doctor)
  • Acute nonspecific lymphadenitis is often a benign response to a localized or systemic infection, and it goes away when the infection is cleared. (greek.doctor)
  • Kikuchi-Fujimoto disease (KFD) is a benign self-limiting disorder that frequently leads to swelling of cervical lymph nodes in young women. (bvsalud.org)
  • Lymphadenitis is the most common clinical form of the disease,[1, 5, 6, 8] with 3-7% causing clinically significant lymphadenopathy,[9] particularly cervical lymphadenopathy. (medscape.com)
  • This disease is difficult to diagnose because of its resemblance to benign or malignant diseases and low morbidity. (researchsquare.com)