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. 2013:2013:363072.
doi: 10.1155/2013/363072. Epub 2013 Sep 17.

Spontaneous regression of primary malignant lymphoma of the prostate

Yoshio Monzen  1 , Mitsuru Nakahara, Takashi Nishisaka
Affiliations

Spontaneous regression of primary malignant lymphoma of the prostate

Yoshio Monzen et al. Case Rep Urol. 2013.

Abstract

We herein report a case of primary lymphoma of the prostate, which arose in an 85-year-old male with dysuria. CT and MRI examinations demonstrated a large mass in the prostate. A transrectal ultrasound-guided biopsy of the prostate was performed. The histological examination showed diffuse large B-cell lymphoma. The large lesion in the prostate showed spontaneous regression. Spontaneous regression of primary lymphoma of the prostate has not been reported previously. The spontaneous regression of primary lymphoma of the prostate observed in this patient suggests that observation may represent a viable treatment option following a biopsy that has provided a histopathological diagnosis.

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Figures

Figure 1
Figure 1
Contrast-enhanced CT demonstrated a large heterogeneous mass (arrow).
Figure 2
Figure 2
T2-weighted MR imaging demonstrated a tumor originating from the left peripheral zone of the prostate (arrow).
Figure 3
Figure 3
A histological section showing a diffuse large B cell lymphoma (H&E).
Figure 4
Figure 4
Precontrast CT demonstrated a diminution of the size of the lymphoma of the prostate 25 months after the prostate biopsy.
See this image and copyright information in PMC

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