Caption: Figure 8: Pulmonary sporotrichosis: x20 magnified view of the caseating
Histologically, this type is characterized by extensive caseating
necrosis within the nodule itself and very little fibrosis [1, 3].
Commonest lesions (66.3%) diagnosed in lymph node swellings was Caseating
granulomas (57/86 cases) consistent with tuberculosis followed by reactive lymphadenitis (20 cases; 23.3%).
The prognosis of actively caseating
type and edematous-hyperemic type EBTB is worst, resulting in fibrostenosis in two-thirds of patients.
granuloma of tuberculosis can be seen in Fig.
Secondary disease causes ulcerated lesions of caseating
foci within the mucosa and submucosa.
Histopathological examination of the biopsy samples showed normal epidermis and caseating
tuberculoid granulomas containing epithelioid histiocytes and Langhans giant cells in the papillary dermis (Fig.3).
Nineteen cases (86%) out of the 22 nontuberculous mycobacterial cases had caseating
granulomas as their sole histopathologic finding.
Fever of unknown origin and isolated non caseating
granuloma of the marrow: could this be sarcoidosis?.
USG guided lymph node fine needle aspiration cytology was performed in 15 subjects revealed caseating
tuberculosis was cultured, if acid-fast bacilli were identified on ZN staining, or if histopathological examination demonstrated the presence of caseating
Frozen and permanent sections showed caseating
granuloma with necrosis.