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Practical infectious diseases

Practical infectious disease


Localization of pus leads to abscess formation which appear here as red congested swelling at the side of the neck. Diagnosis: abscess


Practical infectious disease

Formation of a superficial, dirty-gray pseudomembrane of diphtheria on the soft palate.

Pharyngeal pseudomembrane. Epithelium is absent; at one side, inflammatory exudate extends to underlying muscle Diagnosis : Diphtheria
Practical infectious disease



Peripheral sub pleural small whitish yellow lesion (Ghon focus) & hilar lymph node enlargement in primary T.B (cheesy like material) Diagnosis: Ghon’s complex of primary TB..
Practical infectious disease




Multiple irregular cavitations & extensive area of necrosis involving the upper lobe of the lung Diagnosis: secondary T.B
Practical infectious disease



Granuloma with central caseous necrosis surrounded by epithelioid cells & Langhans giant cell (multinucleated giant cells) surrounded by a rim of lymphocytesDiagnosis: T.B lung (caseating granuloma)
Practical infectious disease




Practical infectious disease

Miliary tuberculosis of the spleen,cut surface show

numerous gray-white granulomas

This is an acid fast stain of Mycobacterium tuberculosis Which appear as red rods.

Practical infectious disease




Practical infectious disease



The colony of actinomycosis at high magnification. The micro organism is filamentous & the filaments project as red specular at the periphery of the colony (large arrow) which is surrounded by neutrophils (mycetoma) small arrow.

Secondary syphilis, in the dermis with perivascular lymphoplasmacytic infiltrate & endarteritis obliterance.
Practical infectious disease


Practical infectious disease

Plasma cells infiltration in syphilis

‘notched incisor Known as Hutchinson's teeth which are characteristic of congenital syphilis
Practical infectious disease


Practical infectious disease

Multiple shallow, lingual

ulcerations in patient with
secondary syphilis

Stages of Herpes Simplex infection (oral sore)

Practical infectious disease





Practical infectious disease

Cardiac muscle fibers show a lymphocytic infiltrate

Diagnosis: Viral myocarditis


Practical infectious disease



viral infection in the alveolar wall. Showing giant cell originate from epithelial cells with inclusion body of virus within the giant cells
Diagnosis: Viral pneumonia (interstitial pneumonia)


Practical infectious disease

Mold ,Septate hyphae are close-packed with acute-angle branching.

Diagnosis Aspergillus infection, :
Practical infectious disease


Yeast A numerous budding cells and pseudohyphae characteristic for Candida.

Diagnosis: Candidial infection (fungal infection) lung
Practical infectious disease


Practical infectious disease



• Oral candidiasis (candidal stomatitis), the fungi creates gray-white, dirty-looking pseudomembranous on the tongue
Practical infectious disease





رفعت المحاضرة من قبل: Ayado Al-Qaissy
المشاهدات: لقد قام 11 عضواً و 258 زائراً بقراءة هذه المحاضرة








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