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Juxtaglomerular cell tumor
1First Department of Pathology, Gifu University School of Medicine, Japan.
Archives of Pathology & Laboratory Medicine
|November 1, 1993
Summary
This study details a rare juxtaglomerular cell tumor in a hypertensive patient. Surgical resection of the tumor led to the complete resolution of her hypertension symptoms.
Area of Science:
- Nephrology
- Oncology
- Pathology
Background:
- Juxtaglomerular cell tumors are rare neoplasms originating from the juxtaglomerular apparatus of the kidney.
- Hypertension is a common condition, and in rare cases, it can be caused by renin-secreting tumors.
Observation:
- A 25-year-old Japanese woman presented with hypertension.
- Diagnostic workup revealed elevated plasma renin activity, suggesting a renin-secreting tumor.
- Imprint cytology of the resected tumor showed characteristic knob-like formations.
Findings:
- Immunocytochemistry confirmed the presence of human renin antigen in the neoplastic cells.
- Histopathologic and electron microscopic examinations revealed typical features of a juxtaglomerular cell tumor.
- The tumor also exhibited tubular components, possibly originating from distal urinary tubules.
Implications:
- This case highlights the importance of considering rare renin-secreting tumors in the differential diagnosis of secondary hypertension.
- Successful surgical resection of the juxtaglomerular cell tumor resulted in the complete cure of hypertension.
- This report contributes to the limited literature on juxtaglomerular cell tumors, emphasizing diagnostic modalities like imprint cytology.