Concurrent IgG4-Related disease and clear cell renal cell carcinoma

We report a case of a 54-year-old man with a concurrent diagnosis of IgG4-related disease (IgG4-RD) and clear cell renal cell carcinoma (ccRCC) following asymptomatic submandibular lymphadenopathy with an incidental finding of a left renal mass. Partial nephrectomy revealed ccRCC with surrounding ly...

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Detalles Bibliográficos
Autores principales: Chow, Kar Ven Cavan, Hossain, Shahadat
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2021
Materias:
Oncology
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8515402/
https://www.ncbi.nlm.nih.gov/pubmed/34692417
http://dx.doi.org/10.1016/j.eucr.2021.101856
Descripción
Sumario:We report a case of a 54-year-old man with a concurrent diagnosis of IgG4-related disease (IgG4-RD) and clear cell renal cell carcinoma (ccRCC) following asymptomatic submandibular lymphadenopathy with an incidental finding of a left renal mass. Partial nephrectomy revealed ccRCC with surrounding lymphoplasmacytic infiltrate, storiform fibrosis and a strong positivity for IgG4 on immunoperoxidase staining. The IgG4+:IgG + ratio was >40% and serum IgG4 levels were elevated at 159mg/dL. This case highlights the concurrent diagnosis of a unique dual pathology within the same organ and emphasises the importance of malignancy screening in patients with IgG4-RD and vice versa.

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