Comparison of Polymerase Chain Reaction With Histopathologic Features for Diagnosis of Tuberculosis in Formalin-Fixed, Paraffin-Embedded Histologic Specimens

2003 ◽  
Vol 127 (3) ◽  
pp. 326-330 ◽  
Author(s):  
Do Youn Park ◽  
Jee Yeon Kim ◽  
Kyung Un Choi ◽  
Jin Sook Lee ◽  
Chang Hun Lee ◽  
...  

Abstract Objective.—To investigate the relationship between various histopathologic features and the results of the tuberculosis (TB)–polymerase chain reaction (PCR) method in routinely submitted histologic specimens for the histopathologic diagnosis of TB. Design.—We used 95 formalin-fixed, paraffin-embedded tissue blocks from 81 patients who were clinically suspected of having TB. We assessed the presence of histopathologic features including well-formed granuloma, poorly formed granuloma, caseous necrosis, and Langhans-type giant cells. We performed nested PCR for IS6110 and Ziehl-Neelsen staining for acid-fast bacilli (AFB). Results.—Of the 81 patients studied, 53 patients had chronic granulomatous inflammation, whereas 28 patients had only chronic inflammation without definite granulomatous inflammation. Of the 53 cases with chronic granulomatous inflammation, 17 (32%) were AFB positive and 36 (68%) were TB-PCR positive. Among cases with chronic granulomatous inflammation, the percentage that were positive and negative by TB-PCR differed significantly with the presence of various histopathologic features. All of the 13 cases with well-formed granuloma, caseous necrosis, and Langhans-type giant cells were TB-PCR positive; however, 10 (36%) of the 28 cases with chronic inflammation without granulomatous lesions were also TB-PCR positive. Conclusions.—TB-PCR is a rapid, sensitive method for the diagnosis of TB in routinely processed formalin-fixed, paraffin-embedded histologic specimens and is readily available in histopathology laboratories. We recommend use of TB-PCR when TB is suspected clinically, especially in cases of chronic inflammation without definite evidence of granulomatous inflammation.

2018 ◽  
Vol 54 (1) ◽  
pp. 65-70 ◽  
Author(s):  
Joon Im ◽  
Derek P. Burney ◽  
Sean P. McDonough ◽  
Brigid Nicholson ◽  
Adam Eatroff ◽  
...  

ABSTRACT This case report describes the detection of intrahepatic bacteria in formalin-fixed paraffin-embedded histopathological sections from three dogs with neutrophilic, pyogranulomatous, or lymphoplasmacytic hepatitis and cholangiohepatitis. In each of these cases, eubacterial fluorescence in situ hybridization enabled colocalization of intrahepatic bacteria with neutrophilic and granulomatous inflammation in samples that were negative for bacteria when evaluated by routine hematoxylin and eosin histopathology augmented with histochemical stains. Positive responses to antimicrobial therapy were observed in of 2 out of 2 patients that were treated with antimicrobials. These findings suggest that eubacterial fluorescence in situ hybridization analysis of formalin-fixed paraffin-embedded histopathological sections is more sensitive than conventional histochemical stains for the diagnosis of bacteria-associated canine hepatitis.


2020 ◽  
Vol 8 (1) ◽  
pp. 60-66
Author(s):  
Fairuz Fairuz ◽  
Hasna Dewi ◽  
Humaryanto Humaryanto

ABSTRACT Background Extrapulmonary Tuberculosis (EPTB) is a condition in tissue outside the lung that is characterized pathologically with extensive involvement of lymphocyte inflammation cells, the presence of epitheloid granuloma cells in the langhans and the duration of the cancer. Tuberculosis (TB) remains a major global public health problem, with 1.5 million deaths every year worldwide.. Histopathologic variations in the appearance of the diagnosis of EPTB often overlap commonly with granulomatous inflammation. This study aims to describe the EPTB profile histopathologically on FFPE samples in Jambi province. Methods This research is a descriptive study with cross sectional technique, evaluating the histopathological picture of EPTB on formalin Fixed Paraffin Emdedded (FFPE) preparations. The study was conducted in February - August 2019 in the Anatomy Pathology Laboratory of the Faculty of Medicine and Health Sciences and FFPE samples originating from Hospitals in Jambi Province. Histopathological data are divided into 3 categories: non-specific chronic mastitis, granulomatous chronic mastitis and specific chronic mastitis. Histopathological variables were assessed by histopathological score. Result Obtained 72 FFPE EPTB tissues from hospitals in Jambi Province, mostly originating from lymph nodes as much as 58.3% followed by breasts as much as 16.5%. The most common histopathopathic picture is in accordance with tuberculosis (EPTB) as much as 54.2% and cases of granulomatous inflammation which is still high as much as 44.4%. Histopathological picture of EPTB fulfills all tuberulosis criteria (100%), in contrast to granulomatous inflammation only fulfills 2 criteria, namely lymphocytes and epithelioid. Conclusions Histopathological picture of extrapulmonary tuberculosis in histopathology for the most part still gives a classic picture. Key words : Histopathology, Extrapulmonal Tuberculosis, Formalin Fixed Paraffin Embedded (FFPE)     ABSTRAK Latar Belakang Ektrapulmonal Tuberkulosis (EPTB)  adalah suatu kondisi pada jaringan diluar paru  yang ditandai secara patologi dengan keterlibatan secara ekstensif  sebukan sel radang limfosit, adanya granuloma epitheloid  sel datia langhans dan masa perkijuan. Tuberkulosis (TB) tetap menjadi masalah kesehatan masyarakat global utama, dengan 1,5 juta kematian setiap tahun di seluruh dunia. Diagnosis untuk kasus EPTB  pada jaringan saat ini secara umum masih menggunakan pemriksaan patologi anatomi. Adanya berbagai variasi gambaran secara histopatologis mmebuat diagnosis EPTB seringkali tumpang tindih terumata dengan radang granulomatosa. Penelitian ini bertujuan untuk menggambarkan profil EPTB secara histopatologik pada sampel FFPE di provinsi Jambi. Metode Penelitian ini adalah penelitian deskriptif dengan teknik cross sectional, menilai gambaran histopatologis EPTB pada sediaan Formalin Fixed Paraffin Emdedded (FFPE).  Penelitian dilaksanakan pada Bulan Februari - Agustus 2019 di Laboratorium Patologi Anatomi Fakultas Kedokteran dan Ilmu Kesehatan dan sampel FFPE yang berasal dari Rumah Sakit di Provinsi Jambi..  Data histopatolgis dibagi menjadi 3 kategori yaitu : mastitis kronis non spesifik, mastitisn kronis granulomatosa dan mastitis kronis spesifik. Variabel histopatologi yang dinilai dengan skor histopatologis. Hasil Didapatkan 72 jaringan FFPE  EPTB dari Rumah Sakit di  Provinsi Jambi , paling banyak berasal dari  kelenjar getah bening sebanyak 58,3% diikuti dengan payudara sebanyak 16,5%. Gambaran histopatolgois paling banyak adalah sesuai dengan tuberculosis (EPTB) sebanyak 54,2% dan kasus radang granulomatosa  yang masih tinggi yaitu sebanyak 44,4%. Gambaran histopatologis EPTB memenuhi semua kriteria tuberulosis (100% ), berbeda dengan radang granulomatosa hanya memenuhi 2 kriteria yaitu sebukan limfiosit dan gambaran epitelioid. Kesimpulan gambaran histopatologis ekstra paru tuberkulosis secara histopatologis paling banyak ditemukan di kelenjar getah bening dan  sebagian besar masih memberikan gambaran yang klasik.   Kata kunci : Histopatologi,  Tuberkulosis Ekstra Paru , Formalin Fixed Parafin Embedded (FFPE)


Sign in / Sign up

Export Citation Format

Share Document