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Biomedical subjects

P Nath

Publications and source records attributed to P Nath.

94 records · Page 6Linked to original sources
PubMedDate not supplied

Correlative study of histopathology and bacteriology in patients of tubercular lymphadenitis.

Histopathology as well as bacteriology of lymph node specimen are useful diagnostic tools for tuberculous lymphadenitis. In the present study, a total of 71 cases of lymphadenitis were selected for histopathological and bacteriological studies. Only 46 patients had caseating type and 4 had non-caseating type of tuberculous lymphadenitis while 21 patients revealed non-specific chronic lymphadenitis on histopathological examination. Only 6 lymph node smears were positive for acid fast bacilli (AFB), 19 cases were positive for mycobacterial culture growth. Thus, it is not necessary that the cases which are histopathologically positive will be positive for culture as well. Therefore, both bacteriology and histopathology are complimentary diagnostic tools for tuberculous lymphadenitis.

Adult↗
PubMedDate not supplied

A histomorphologic and ultrastructural study of the malignant tumours of the renal pelvis.

The study was carried at two different centres. Only 9 cases of primary malignant tumours of the renal pelvis could be collected during the period of 7 years (1984-1990). Renal pelvis malignancies constituted 0.21% of all the malignancies and 12.16% of all the malignant growths of the kidney (9 out of 74 cases). The age of these patients ranged from 24 to 70 years; the mean being 41.7 years. Male/female ratio was 8:1. Common triad of complaints (pain, haematuria and lump) was noticed in 22.2% of patients. Individually they were noticed in 77.8%, 66.7% and 44.4% of patients respectively. Transitional cell carcinoma was the commonest, seen in 7 patients (77.8%) whereas squamous cell carcinoma and adenocarcinoma were noticed in one patient (11.1%) each. Hydronephrosis, chronic pyelonephritis and nephrolithiasis were noticed in 66.7%, 44.4% and 22.2% of patients respectively. Ultrastructural study of urothelial tumours revealed tumour cells in various stages of differentiation with loss of intercellular junctions and dense collection of rough endopasmic reticulum fibrils around the nucleus.

Adenocarcinoma↗