TESTICULAR MASS
TESTICULAR MASS: Excerpt from Differential Diagnosis in Primary Care
Like that of most masses, the differential diagnosis of testicular
masses is best analyzed by the anatomic and histologic
approach (Table 57). The skin may be involved by many
inflammatory conditions leading to swelling, including carbuncles,
cellulitis, and dermatitis of various types. Edema of the skin and
subcutaneous tissue is found in cirrhosis, CHF, nephrosis, and
filariasis. The tunica vaginalis is
involved with hernias and hydroceles, which may be differentiated by using
transillumination. The venous plexus of the scrotum and testes is
involved by varicoceles and phlebitis (usually of the left venous plexus),
and a varicocele may be the sign of a carcinoma of the kidney when the left
spermatic vein is obstructed. Thus, one readily sees how frequently
obstruction is a pathophysiologic mechanism in tumors here or elsewhere.
TESTICULAR MASS
|
| V | I | N | D |
|
| Vascular | Inflammation | Neoplasm | Degenerative |
|
| | | | |
|
|
Skin |
|
Carbuncle |
Carcinoma | |
Subcutaneous Tissue |
|
Cellulitis |
| |
| |
Tunica Vaginalis |
|
| |
| |
Venous Plexus |
|
Phlebitis |
Obstruction from renal carcinoma | |
Testis |
|
Orchitis Syphilis |
Seminoma Chorioepithelioma | |
Epididymis |
|
Bacterial epididymitis Tuberculosis |
| |
Artery |
Torsion |
|
| |
Vas Deferens |
|
|
Secondary to obstruction by carcinoma of prostate | |
Lymphatics |
|
Filariasis |
| |
|
TESTICULAR MASS
|
| I | C | A | T | E | O |
| Intoxication | Congenital | Allergic- | Trauma | Endocrine | Obstruction |
| | | Autoimmune | | |
|
|
|
Urticaria |
Contusion |
|
Sebaceous cyst |
|
|
|
|
Direct inguinal hernia |
| |
|
|
Indirect inguinal hernia Hydrocele |
|
Hematoma |
| |
|
|
Varicocele |
|
|
| |
|
|
Teratoma Hydatid cyst of Morgagni |
|
|
| |
|
|
Cyst |
|
|
|
Spermatocele |
| |
|
|
Torsion |
|
|
| |
|
|
|
|
|
|
Prostate disease |
| |
|
|
|
|
|
| |
|
The testis is swollen in carcinomas (e.g., seminomas,
choriocarcinomas, teratomas, Leydig cell tumors) and in orchitis (secondary
to mumps, bacterial diseases, syphilis, or tuberculosis). The
epididymis is frequently inflamed and swollen when there is
orchitis and only rarely is inflamed by itself. It may also be enlarged from
a spermatocele or from a vas deferens obstruction caused by prostatic
disease (inflammation or neoplasm). Finally, arterial occlusion
caused by torsion of the testicle may cause a testicular mass.
Approach to the Diagnosis
Testicular masses may be differentiated by transillumination
(hydroceles and spermatoceles transilluminate, whereas hernias and tumors do
not). Hernias may also be differentiated by reducing them (some will not
reduce, however, if they are incarcerated), and auscultation may reveal
bowel sounds. In noncommunicating hydroceles and testicular tumors, one may
get above the swelling, whereas in torsion and hernias one cannot. In
torsion, the tenderness is increased by elevation of the testicle, whereas
in orchitis the tenderness is relieved if elevation is done for an hour or
more. Serum alpha-fetoprotein beta-human chorionic gonadotropin (HCG) or
lactic dehydrogenase (LDH) will be elevated in testicular
tumors. Surgery may be the only way to differentiate the cause of the mass.
Other Useful Tests
-
CBC (orchitis)
-
Sedimentation rate (orchitis)
-
Urinalysis (urinary tract infection [UTI])
-
Urethral smear (infection)
-
Urine culture (UTI)
-
Urine gonadotropin (testicular tumor)
-
Prostatic fluid smear and culture (prostatitis)
-
Mumps skin test and serology (mumps orchitis)
-
Small-bowel series (hernia)
-
CT scan of the abdomen and pelvis (metastatic tumor)
-
Urology consult
-
Sonogram (torsion, hydrocele)
-
Radionuclide scan (torsion)
-
Prostate-specific antigen (PSA) (prostatic carcinoma)
Pictures
Book Source Details
- Book Title: Differential Diagnosis in Primary Care
- Author(s): R. Douglas Collins MD, FACP
- Year of Publication: 2007
- Copyright Details: Differential Diagnosis in Primary Care, Copyright © 2007 Lippincott Williams & Wilkins.
More About Testicular torsion
More Medical Textbooks Online about Testicular torsion
Review other book chapters online related to Testicular torsion:
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Copyright notice for book excerpts: Copyright © 2008 Lippincott Williams & Wilkins. All rights reserved.
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