In addition to ESR, CRP, CBC and taking biopsy is there any specific blood test to make the dx?
Yes, a big breakthrough in diagnosing Wegener's was described in the 1980s, when it was found that a particular blood test was very useful in identifying patients with Wegener's.
This is called :ANCA (antineutrophil cytoplasmic antibodies) test.
This test is very accurate and can tell us very precisely what’s the diagnosis.

Pulmonary involvement
I’m not sure if this is a cavity*

Urine dipstick test
For detection of any protein or blood in urine when kidney is involved ( the classical pattern of disease)

Treatment:

- The steroid drugs:
prednisolone is the one most commonly employed.

- immunosuppressive drugs:
The most commonly used drugs are cyclophosphamide and azathioprine.

This study conducted at department of Otolaryngoogy Head and Neck Surgery Jinnah Hospital Lahore, during the period from December 1998 to July 2001.

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Look at how the capillaries are thickened

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Minimal change disease & primary FSGS present with fulminant (acute) nephrotic syndrome, while membranous nephropathy and secondary FSGS present with a more insidious and chronic version of nephrotic syndrome.

Those guys have a really interesting collection of gods 🍻