Congo Red

10/01/2012 - "Fluorescence microscopy is superior to polarized microscopy for detecting amyloid deposits in Congo red-stained trephine bone marrow biopsy specimens."
03/01/1994 - "Light microscopy of Congo-red-stained sections and electron microscopy of the fibrillar structure very useful for the detection of small amyloid deposits."
01/01/2014 - "Among the many tinctorial characteristics of amyloid deposits, avidity for Congo red and metachromatic birefringence under unidirectional polarized light remain the gold standard. "
03/01/2014 - "Histopathological study revealed positive Congo red areas of amyloid deposits typical for LCD. "
01/01/2007 - "Subsequent histopathological study revealed the presence of amyloid deposits with characteristic apple-green birefringence when stained with Congo-red under polarized light microscopy."

04/01/1986 - "By indirect immunofluorescence, using AA antiserum, positive results were obtained in five of the nine cases of AA amyloidosis (aspirates from these five patients were positive on Congo red staining). "
04/01/1986 - "By light microscopy, after staining of the fat tissue aspirates with Congo red and examination with a polarizing microscope, positive results were obtained in nine patients with amyloidosis, two of the three with primary (AL) amyloidosis and seven of the nine with secondary (AA) amyloidosis. "
03/01/2015 - "We conclude that h-FTAA fluorescence is more sensitive than Congo red staining in this small exploratory study of fat tissue samples, implicating potential sensitivity for prodromal amyloidosis, but is less specific for clinical amyloidosis defined by Congo red positivity. "
04/01/2012 - "Although, histopathological examination of the lesion reveals amorphous eosinophilic deposits in papillary dermis examination of congo red stained slides under polarized light will give definitive diagnosis To study the clinicopathological features of cutaneous amyloidosis emphasizing the utility of polarized light in diagnosis. "
01/01/2008 - "Further studies in a larger number of tissue samples will indicate the application of these ECM markers in parallel with Congo Red staining in tissue characterization of pre-clinical and clinical stages in FAP and other amyloidoses."

02/01/2012 - "A core needle-biopsied and resected left inguinal tumor showed the deposition of eosinophilic amorphous materials positive for Congo red stain and the κ-light chain. "
06/01/2006 - "Congo red staining, beta2M immunohistochemistry, and electron microscopy examination of the biopsied sample showed extended beta2M deposits in the cystic tumor. "
11/01/1993 - "Extracellular bodies were similar in size to tumor cells and were not stained by PAS or Congo red. "
01/01/2009 - "Histochemically, the tumor cells were pyroninophilic and the congo-red stain revealed amyloidosis. "
06/01/1991 - "Congo-red-positive amyloid deposits present in tumors also were IAPP immunoreactive. "

09/01/1998 - "To evaluate the usefulness of the endoscopic Congo red test (ECRT), and to compare sensitivity and specificity of different tests in the discrimination of cases with high risk for postvagotomy recurrent ulcer (RU). "
09/01/1998 - "Risk evaluation of postvagotomy ulcer recurrence by using endoscopic Congo red test and gastric secretion tests."
06/01/1998 - "Interpretation of postvagotomy endoscopic Congo red test results in relation to ulcer recurrence 5 to 12 years after operation."
11/01/1982 - "With a trend to more selective vagal section and a continuing significant incidence of recurrent ulceration, we are convinced that the congo red test is an important adjunct to the surgical care of ulcer patients."
07/01/1976 - "However, endoscopic examinations using the Congo red test showed that 18 of the ulcers examined (7.8%) were surrounded by an acid-secreting area, and so were in the fundic gland area. "

11/01/2013 - "We aimed to evaluate the efficacy of Congo red staining to differentiate eosinophils in the inflammatory infiltrate in oral squamous cell carcinoma (OSCC) and whether this eosinophilia is associated with the histologic grading in OSCC. "
11/01/2013 - "A histochemical study of tissue eosinophilia in oral squamous cell carcinoma using Congo red staining."
04/01/2015 - "Comparative evaluation of eosinophils in normal mucosa, dysplastic mucosa and oral squamous cell carcinoma with hematoxylin-eosin, Congo red, and EMR1 immunohistochemical staining techniques."
04/01/2015 - "The present study was conducted to compare the presence of eosinophils in normal mucosa, dysplastic mucosa, and oral squamous cell carcinoma by -hematoxylin- eosin staining, Congo red staining, and epidermal growth factor-like (EGF-like) module containing a mucin-like hormone receptor1 (EMR1) immunohistochemical marker. "