3. diagnosis
DESCRIPTION
TRANSCRIPT
ByMR.RAGAVENDRAN
MEDICAL HISTORY
MICROBIOLOGICAL EXAMINTION SPUTUM COLLECTION
SLIDE PREPARATIONZiehl-Neelsen staining
MICROSCOPIC VIEW OF M .tuberculosis
CRITERIA FOR TUBERCULOSISDIAGNOSIS
NO OF NO OF BACILLIBACILLI
NO OF OIL NO OF OIL IMMERSION IMMERSION FIELDS SEENFIELDS SEEN
RESULTRESULT
00 100100 00
1-91-9 100100 scantyscanty
10-9910-99 100100 1+1+
1-101-10 11 2+2+
>10>10 11 3+3+
CLASSIFICATION OF PATIENTSSMEAR SMEAR POSITIVEPOSITIVE
INDETERMINAINDETERMINATETE
SMEAR SMEAR NEGATIVENEGATIVE
FALSE POSITVERed stain retained by scratches in slideAccidental transferContaminaton from environmental
mycobacteria
FALSE NEGATIVEPROBLEMS IN 1) collecting 2) processing 3) interpreting 4) administrative errors
FLUORESCENT MICROSCOPYrhodamine auramine
WITH ACRIDINE ORANGE DYE
CULTUREsolid medium
A SLOW GROWING NONPIGMENTED , NIACIN POSITIVE ACID FAST BACILLUS is taken as M.tuberculosis
CULTUREliquid medium
PCRCommonly used target for detection of
M.tuberculosis is the insertion sequence IS6110
USES 1)verify diagnosis by microscopy 2)identify genetic modifications
associated with resistance
CHEST X RAY
LUL CAVITY
Conslidation of RUL
PLEURAL EFFUSION right side
MASS MINIATURE RADIOGRAPHYabreugraphy
MANTOUX TEST
FALSE POSITIVEATYPICAL
MYCOBACTERIABCG VACCINE
FALSE NEGATIVE
DIAGNOSIS OF TUBERCULOUS MENIGITIS
DIAGNOSIS OF MILIARY TUBERCULOSISBone marrow biopsyLiver biopsyBlood Pus from tuberculous abscess
MILIARY TUBERCULOSISinterstitial nodules of uniform size and sharp edges
CT SCAN FOR MILIARY TB
RENAL TUBERCULOSISSTERILE PYURIASONOGRAMCALCIFICATIONS IN THE RENAL PELVIS
POTT’S DISEASE
Tb lymph node