Sandbox: DDx Kidney mass: Difference between revisions
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* Triphasic pattern consisting of tubules, solid sheets of small round cells, and stroma | * Triphasic pattern consisting of tubules, solid sheets of small round cells, and stroma | ||
* Small round blue cells, nuclear pleomorphism, and irregular nuclear membrane | * Small round blue cells, nuclear pleomorphism, and irregular nuclear membrane | ||
* Clustered tubular structures Tubular with central clear spaces surrounded by a rim of intensely eosinophilic cytoplasm. | |||
central | |||
* WT1 and WT2 genes on chromosome 11 | * WT1 and WT2 genes on chromosome 11 | ||
Revision as of 14:30, 6 November 2015
- 3-4 yo patients
- Asymptomatic abdominal mass
- May have abdominal pain, fever, nausea/vomiting, hematuria, and hypertension
- Beckwith-Wiedemann syndrome and WAGR syndrome
- Unilateral, smooth, firm, nontender, flank mass
- Does not cross the midline
- Elevated serum creatinine and BUN
- Reduced glomerular filtration rate
- Abnormal liver function tests
- Erythrocytosis, hypercalcemia, and acquired Von Willebrand disease
- Large heterogeneous solid mass on U/S
- Displace adjacent structures
- Lung and lymph nodes metastasis
- Renal vein thrombosis
- Triphasic pattern consisting of tubules, solid sheets of small round cells, and stroma
- Small round blue cells, nuclear pleomorphism, and irregular nuclear membrane
- Clustered tubular structures Tubular with central clear spaces surrounded by a rim of intensely eosinophilic cytoplasm.
- WT1 and WT2 genes on chromosome 11
- WTX gene on chromosome X
Nonmalignant causes
anaplastic sarcoma clear cell sarcoma mesoblastic nephroma metanephric stromal tumor nephroblastomatosis / nephrogenic rests neuroblastoma oncocytoid carcinoma after neuroblastoma ossifying tumor renal cell carcinoma rhabdoid tumor translocation carcinoma (children) Wilms tumor of children