Urethral stricture: one specimen in 3D
See the scar.
Visual demo · may contain anatomical errors · not for clinical use
Translations are machine-generated. English is the clinical reference.
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About this specimen
A urethral stricture is a scar that narrows the tube carrying urine from the bladder. This constructed model shows one short scar in the bulbar urethra of an adult man. Rotate the specimen, open the cutaway, and explore how different treatments open, remove, or widen the narrowed area. The model also shows nearby muscles, blood vessels, and nerves. It is a teaching example, not a real patient. Your scar, symptoms, test results, and treatment choices may differ from this example.
Five teaching overlays
- Disease: the narrowed channel and surrounding scar.
- DVIU / dilation: opening or stretching the narrowed channel.
- Drug-coated balloon: widening the channel and delivering medicine.
- Excision and anastomosis: removing the short scarred segment and joining the ends.
- Buccal onlay: widening the channel with cheek lining, shown in dorsal and ventral positions.
Visual demo · may contain anatomical errors · not for clinical use
Glossary
Work-up
Your clinician asks about symptoms and earlier treatment, examines you, and checks your urine. A flow test measures how you pass urine. A bladder scan checks how much remains afterward. A contrast X-ray called a RUG, sometimes with images taken while passing urine, helps show where the scar is and how long it is. A small camera may also be used to look inside the urethra.
EAU diagnostic evaluationNearby structures and graft tissue
Sphincter
The external sphincter is a muscle that helps control urine. It is shown intact in this example. The drawing cannot predict urine control after treatment.
Erectile nerves and vessels
Nerves and blood vessels near the urethra contribute to sensation and erections. Their display helps explain the anatomy; it cannot predict sexual function after treatment.
Why cheek lining
The lining inside the cheek is hairless and used to a wet environment. A piece can be used as a patch to widen the urethra. The mouth has its own wound and recovery.
Model notes
Constructed anatomy · schematic treatment steps
This specimen represents one adult man with a stipulated 1.8 cm short bulbar stricture and an intact external sphincter. The length is an input to the model, not a measurement from an image. The cause remains labeled idiopathic/inflammatory; a specific etiologic category has not been assigned.
Atlas meshes are cropped and smoothed for display. Some structures are mirrored, and small structures, scar and treatment overlays are constructed teaching additions. Their shapes, thicknesses and spacing are schematic. Instruments, graft fixation and suture count illustrate concepts; they do not specify operative dimensions, device selection or stitch placement.
The balloon overlay adds a hypothetical recurrence history. The EPA animation depicts transection; mention of non-transecting repair in the text does not make that technique part of the animation. Dorsal and ventral graft views show placement and support, not comparative effectiveness.
This is not a patient, a RUG or an operative simulator. It does not model tissue handling, force, bleeding, healing or an individual's outcome. It is not a complete atlas of urethral stricture disease.
Visual demo · may contain anatomical errors · not for clinical use
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