Primary lymphoma of the prostate in a dog

Abstract

A case of primary lymphoma of the prostate is reported in a nine‐year‐old crossbred dog. The lesion was treated with cytotoxic drugs, however, the dog was euthanased because of inadequate response. This is the first recorded case of primary prostatic lymphoma in the dog.

Predominance of hypoechoic tissue changes in nine dogs with malignant prostatic lymphoma

“…However, our results suggest that canine malignant lymphoma affecting the prostate appears to be more commonly high grade and of T‐cell origin. Similar to previous reports and similar to epithelial neoplasia of the prostate, the main clinical findings were lower urinary tract signs (stranguria, dysuria) and large intestinal signs (tenesmus, dyschezia, constipation). Prostatic lymphoma in veterinary medicine has also been described as causing lower urinary obstruction with subsequent renal hydronephrosis and/or mild ureteral dilation .…”

“…Previous veterinary literature has reported prostatic involvement after recurrence of an intestinal and splenic lymphoma, along with infiltration of the medial iliac lymph nodes or suspected multifocal neoplastic process with involvement of kidneys, liver, and spleen . Mainwaring reported a primary prostatic lymphoma and infiltration of both adrenal glands as documented by histopathological examination. A final conclusion cannot be made based on the limited number of cases.…”

“…Fibrosarcoma, leiomyosarcoma, leiomyoma, and hemangiosarcoma have been identified in the canine prostate . Only individual cases of malignant lymphoma affecting the prostate in dogs have been reported so far . Canine malignant lymphoma is typically a multicentric disease, even though on occasion the lymphomatous neoplastic infiltrate is limited to one organ as in extranodal presentations .…”

Imaging Diagnosis—urinary Obstruction Secondary to Prostatic Lymphoma in a Young Dog

“…This report documents an unusual presentation of prostatic lymphoma in a dog with signs of urinary obstruction with a focus on imaging findings. While a case of prostatic lymphoma in the dog has been previously reported, this is the first report describing its sonographic appearance 3 …”

“…While a case of prostatic lymphoma in the dog has been previously reported, this is the first report describing its sonographic appearance. 3 Abdominal ultrasonography of prostatic disease has been described. [4][5][6][7] At TUSVM, abdominal ultrasonography is commonly performed to evaluate animals with suspected lymphoma.…”