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    Dr Sampurna Roy MD

http://www.histopathology-india.net/dermpath.htm

Granulomas ('naked' granulomas) are composed of epithelioid histiocytes and multinucleated giant cells with only sparse infiltrate of lymphocytes and plasma cells at the periphery.

Sarcoidosis
Reaction to foreign material ; CLICK

Confluent granulomas composed of epithelioid histiocytes, giant cells (Langhans  and foreign body type), and prominent mononuclear infiltrate (lymphocytes and plasma cells) surrounding the granuloma.

Tuberculosis;  Image
Leprosy ; Image
Late Syphilis ;  Image
Leishmaniasis  ; Path Quiz 52  ; Image.
Rosacea;
Crohn's disease; Image

Granulomas are composed of epithelioid cells, with or without multinucleated giant cells, central collections of neutrophils and chronic inflammatory cells in the periphery.

Chromomycosis/phaeohypomycosis ; Image
Sporotrichosis;
Mycobacterium marinum infection ; Image
Coccidiomycosis
Paracoccidioidomycosis
Mycetoma , Nocardiosis , Actinomycosis;
Cat Scratch Disease;
Blastomycosis-like pyoderma;

Granuloma annulare;
Necrobiosis lipoidica ; Path Quiz 55
Rheumatoid nodule ; Path Quiz 53
Pseudorheumatoid nodule (deep granuloma annulare) ; Path Quiz 54
Necrobiotic xanthogranuloma;

Foreign body type granulomas are characterized by identifiable foreign material together with epithelioid cells, multinucleated foreign body giant cells and inflammatory cells.
Exogenous material
Endogenous material

Melkersson-Rosenthal syndrome             Annular Elastolytic Giant Cell Granuloma
Interstitial Granulomatous Dermatitis
Interstitial Granulomatous Drug Reaction
Granulomatous T-cell lymphoma

Granulomatous lesions( Dr Yale Cohen) click

Foreign body-type granuloma(Dr Weems)

Granuloma annulare (Dr Weems)Image1 ;  Image2

Perforating Granuloma Annulare(Dr Weems)Image

Visit:  Infectious Granuloma of the Lung  ; Pathological Diagnosis of Granulomatous Lung Diseases ; Non-necrotising Granulomatous Inflammation of the lung ; An approach to Histopathological examination of Pulmonary Granulomatous Inflammation ;