I'd never heard of that disease------ so I had to go reading up on it a bit.
I find it hard to add to Ricobord's excellent and concise reply.
I did go searching a bit on PubMed and other sites for it. I used Nephrotic Syndrome for a search term also since they may be related in some sense. Also MPGN.
[Other search terms, which I did not use, are Nil disease; Lipoid nephrosis; Idiopathic nephrotic syndrome of childhood. ]
" MPGN (membranoproliferative glomerulonephritis) has been associated with a number of chronic infectious
etiologies.There have been only two cases reported in the literature so
far showing association between MPGN and LD. It is possible that
immune-complex type MPGN and NS may be manifested as a late
complication of LD. "
http://www.kidney.org/news/meetings/clinical/pdf/Abstracts2008/GlomerularDisease/Rawal_MPGN932.pdf
*******************************************
"Received August 21, 2012.
Accepted September 24, 2012.
Abstract
The association of membranoproliferative glomerulonephritis (MPGN) with Lyme borreliosis has only been reported for the C1q-negative subtype. A 64-year-old male presenting with rising creatinine, nephrotic syndrome and monoarthritis few months after a tick bite was noted to have mixed cryoglobulinaemia, a positive borrelia western blot and ‘full-house’ pattern MPGN with interstitial granuloma. Findings resolved with prednisolone and doxycyclin therapy. The histology is consistent with MPGN secondary to cryoglobulinaemia, which has most likely been caused by borrelia infection. ‘Full-house’ pattern MPGN may result from Lyme borreliosis through cryoglobulinaemia and may be treated successfully with the appropriate antibiotic therapy."
http://ckj.oxfordjournals.org/content/6/1/77.abstract
*********************************
Here are just two (of many more) articles that show a possible connection between MCH and Lyme.
http://www.medhelp.org/posts/Maternal/Nephrotic-Syndrome---Tick-Bites/show/860640
http://ndt.oxfordjournals.org/content/26/9/3054.full
What breaks my heart and gets up my nose TREMENDOUSLY! is how doctors/hospitals don't go the whole nine yards in trying to diagnose. The saying "One nail, one hammer" definitely applies there. I'm finding it more and more difficult to swallow the 'we've looked everywhere' excuse when the 'everywhere' is only their area of expertise or, more likely, their particular agenda. And the habit that doctors often have of closing the chapter on MCH (fini, done, moving on) and then reading about other diseases, like Lyme, in another chapter and never connecting the two! Arghhh!
If someone like me, no real medical training, can find those articles------ then why not Dr. G_d?
I don't mean to imply that the child DOES have Lyme------ but it is definitely a possible. And a full investigation should be made.
I'm so sorry for your daughter and you. I'd be willing to find more articles that might possibly connect LD to MCH or other kidney problems if you would like me to.