iga nephropathy

A 40 year old woman presented to the emergency department with acute on chronic abdominal pain in her right iliac fossa. On history her pain had been present for over 6 months and had previously been investigated with ultrasound, CT and a diagnostic laparoscopy several months prior to presentation. Her pain had acutely worsened over the preceding two weeks. This was associated with two days of diarrhoea but nil other systemic symptoms. Her medical history was significant for immunosuppression with tacrolimus, azathioprine and prednisone post renal transplant for IgA nephropathy [1]. Her abdominal examination was unremarkable other than tenderness in her right iliac fossa and a palpable non-tender renal transplant. Her inflammatory markers, electrolytes and urine microscopy were unremarkable. She was further investigated with an ultrasound which demonstrated nil complications with her transplant and a non-contrast CT (due to contrast allergy). Her CT demonstrated a faecolith within the appendiceal lumen but no signs of acute appendicitis (Figure 1). Due to ongoing pain and CT finding of faecolith she was taken for a diagnostic laparoscopy with appendicectomy.   Figure 1: Non-contrast CT demonstrating faecolith. Intraoperatively she had a macroscopically normal appendix and no other cause for the patients symptoms could be identified. A laparoscopic appendicectomy was performed with no complications. Her pain persisted postoperatively and she was discharged post operative day two with analgesia. Histology subsequently revealed actinomyces-like organisms consistent with actinomycosis of the appendix (Figure 2). Her case was discussed with the Infectious diseases team and she was started on an extended course of oral amoxicillin [2].   Figure 2: High Powered H&E stain & gram stain of actinomyces like organisms

It is utterly important to ensure the safety of stem cell donors and limit the incidence of long-term adverse events. Additionally, the willingness to donate the potentially life-saving stem cells, depends among other reasons, on the donor’s trust in the safety of the procedure as our case highlights. Here we present the case of a 35-year-old patient who developed macrohematuria and proteinuria following peripheral blood stem cell (PBSC) donation. 4 years later he was diagnosed with IgA-nephropathy (IgAN) and the disorder was causally attributed to the PBSC donation. He discouraged his family and friends from registering as donors because of this. In the current case report, we review the literature on the relationship between IgAN and PBSC donation and suggest under which conditions stem cell donation can still be performed even with a prior diagnosis of IgAN.