Weinerber et al classified edema of the male genitalia based on the duration of clinical findings. The authors are from the University of Pittsburgh.
Duration of edema: weeks to months
Usually the swelling is painless.
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Clinical Findings
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Possible Cause
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hematuria
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metastatic urothelial carcinoma or renal cell carcinoma
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mass on digital rectal exam
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metastatic prostate cancer, metastatic rectal carcinoma
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testicular mass
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testicular carcinoma, sarcoidosis
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scrotal mass that feels like "bag of worms", especially while the patient is standing
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varicocele
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recent change in bowel habits
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Crohn's disease, colorectal cancer
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inguinal abscesses with sinus tract(s)
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hidradenitis suppurativa
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bilateral inguinal masses
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metastatic carcinoma, sexually transmitted disease, malignant lymphoma
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where:
• Metastases may be to inguinal lymph nodes, to the penis or to testicular structures.
