Article Text

Rare disease
Rosai–Dorfman disease presenting as a kidney tumour
  1. Smarajit Roy1,
  2. Edward Kweka2,
  3. Preeti Chaudhri3,
  4. Jorge Clavijo4
  1. 1
    HEYH NHS Trust, Urology, Hull Royal Infirmary, Hull, HU3 2JZ, UK
  2. 2
    NLG NHS Trust, Radiology, DPOW Hospital, Grimsby, DN33 2BA, UK
  3. 3
    Pathlink, Pathology, Lincoln County Hospital, LN2 5QY, UK
  4. 4
    NLG NHS Trust, Urology, DPOW Hospital, Grimsby, DN33 2BA, UK
  1. roysmarajit{at}


An 81-year-old Caucasian lady studied for anaemia presented with a large solid enhancing mass arising from the hilum of the left kidney on computed tomography scan. A laparoscopic left radical nephrectomy was done through a retroperitoneal approach. Microscopy and histochemistry classified it as Rosai–Dorfman disease though there was neither lymphadenopathy anywhere nor lymphocytosis. It was a very unusual urological presentation of a rare disease.

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  • Competing interests: none.