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Updated: Jan 12, 2026

A Bioluminescent and Fluorescent Orthotopic Syngeneic Murine Model of Androgen-dependent and Castration-resistant Prostate Cancer
Published on: March 6, 2018
Primary manifestation of small lymphocytic lymphoma in the prostate
Martin Fehr1, Arnoud Templeton, Sergio Cogliatti
1Departement Innere Medizin, Medizinische Onkologie und Hämatologie, Kantonsspital Graubunden, Chur,Switzerland.
Background:
Infiltration of non-haematopoietic organs by small lymphocytic lymphoma/chronic lymphocytic leukaemia (SLL/CLL) is not unusual in late-stage disease and thus quite frequently encountered in post-mortem examinations. However, primary manifestation of SLL/CLL in the prostate is rarely diagnosed.
Patients And Methods:
We report two cases of primary prostatic SLL/CLL, in one case in combination with prostate carcinoma, and discuss diagnostic pitfalls, pathophysiological mechanisms and therapeutic management, together with an overview of the literature.
Conclusions:
Lymphocytic infiltration of the prostate associated with obstructive symptoms is rare but can already occur in very early disease. Microscopically, SLL/CLL infiltration can be distinguished from chronic prostatitis by its pattern of infiltration and by immunohistochemistry. As the incidence of both SLL/CLL and prostatic carcinoma increases with age, composite tumours might occur more often in the future.

