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Penile MRI is a vital yet underutilized diagnostic tool that provides detailed information crucial for managing various penile pathologies. Due to its infrequent use, many radiology trainees lack confidence in interpreting these exams. This article reviews the anatomy, key technical considerations, and interpretive pearls for penile trauma, Peyronie's disease, priapism, penile neoplasms, prosthesis evaluation, and a few miscellaneous conditions. Through illustrative case examples, this review aims to enhance the understanding and proficiency of radiologists in performing and interpreting penile MRI in these clinical scenarios.

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Priapism is defined as a form of erectile dysfunction characterized by a prolonged and involuntary penile erection, either partial or complete, occurring without sexual stimulation and lasting for more than 4 hours. Its incidence is estimated to be 0.5-0.9 cases per 100,000 people per year. The most frequent form is ischemic priapism, results from paralysis of the cavernous smooth muscles, which are unable to contract, leading to the stagnation of hypoxic blood within the sinusoidal spaces. Characterized by a painful rigid and sustainable erection. Non-ischemic priapism constitutes a rare entity, unlike the former, this type is typically painless. It is caused by an excessive influx of blood into the penis without a concomitant increase in outgoing blood flow. Blunt trauma is the most commonly reported etiology. And finally, recurrent priapism is characterized by recurrent episodes of prolonged erection and can be challenging to treat, often requiring long-term management to prevent recurrences. We report a case of high-flow priapism in a 10-year old child, secondary to a cavernous arterial fistula following a straddle injury during sports activity. It was suspected clinically and confirmed by ultrasound-Doppler, then successfully treated radiologically with highly selective embolization, with very satisfactory postoperative outcomes.

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Partial penile amputation in the pediatric age group is an emergency and occurs mainly due to iatrogenic trauma or road traffic accidents. Such lesions are incapacitating and have a devastating psychological impact. We present the case of a 16-year-old boy who presented with an accidental, near-total penile amputation, and highlight our management plan as a favorable one.

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INTRODUCTION: Penile fracture is traditionally considered a surgical emergency warranting immediate repair with the goal to maximize long-term erectile function and minimize penile curvature. Nonetheless, consensus on the optimal timing for penile fracture repair remains to be elucidated and is the subject of continued research efforts. OBJECTIVES: This review aims to summarize the contemporary literature pertaining to optimal timing of penile fracture repair and associated outcomes. METHODS: We queried PubMed/MEDLINE and Google Scholar for relevant articles published between 2012 and 2022 to evaluate the most recent literature on the queried topic of early vs delayed intervention for penile fracture. All examined review articles were published within the last decade but may have included analyses of studies published prior to 2012. Reference lists of articles and reviews were manually reviewed to identify additional relevant articles. RESULTS: We identified 16 articles that met inclusion criteria: 12 primary articles and 4 systematic reviews or meta-analyses. Importantly, definitions of early and delayed intervention varied greatly among studies, making quantitative comparison challenging. In summary, 6 primary studies and 2 systematic review articles favored early intervention. There were also 6 primary studies and 2 systematic review articles suggesting equivocal outcomes between early and delayed repair. No articles demonstrated improved outcomes with delayed repair relative to early intervention. CONCLUSION: Surgical intervention for penile fracture remains the gold standard, with superior long-term sexual and functional outcomes when compared with conservative management. Optimal timing of penile fracture repair remains to be elucidated with data limited by low incidence, resulting in small case series and a lack of randomized controlled trials. Nonetheless, recent data suggest that a brief delay in surgical intervention for patients presenting with penile fractures does not affect long-term sexual and functional outcomes.

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INTRODUCTION: In the management of penile fractures, immediate surgical repair has resulted in better outcomes when compared with a conservative approach; however, there is currently no consensus on the treatment of patients presenting beyond the immediate period (>24 hours) following injury. OBJECTIVES: To examine the latest literature on management strategies in penile fracture and propose an optimal algorithm for the treatment of patients with delayed presentation. METHODS: A comprehensive search was conducted following the PRISMA-P 2020 guidelines. A search was performed in several databases with the following strategy: ("Penile fracture" OR "fracture of penis" OR "rupture of corpora cavernosa" OR "rupture of tunica albuginea") AND (management OR treatment OR surgery OR "surgical reconstruction" OR "surgical repair"). This resulted in 108 relevant articles. Two independent reviewers screened these articles according to the inclusion criteria. Full-text review of 56 articles was performed, and ultimately 20 studies were selected. Measures included the use of diagnostic imaging, timing of surgical repair (immediate, <24 hours after injury; delayed, >24 hours), surgical approach, and long-term complications (ie, erectile dysfunction and penile curvature). RESULTS: The review highlighted the benefits of immediate surgical repair in penile fractures, demonstrating improved patient outcomes. Furthermore, it found that surgical repair should be considered even in cases with delayed presentation (>24 hours after injury). To better evaluate the long-term impact of delayed surgical intervention on patient outcomes, we recommend standardized postoperative follow-up, with routine assessments of erectile function and penile curvature. CONCLUSION: Contemporary literature suggests that immediate and delayed surgical repair of penile fractures leads to adequate postoperative outcomes, and patients presenting >24 hours after injury should still be considered for surgery.

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Penile fracture (PF) is defined as the rupture of the tunica albuginea (TA) of the corpora cavernosa (CC) caused by trauma to the erect penis. We present a case and clinical evolution of the delayed approach of PF. Physical examination showed a ventral rounded mass in the middle surface of the penile shaft, associated with mild discoloration and edema. Surgery was performed with a vertical penoscrotal incision. We found an encapsulated hematoma on the right ventral mid penile shaft connected at its base to an approximate 1 cm transverse defect on the TA and we performed debridement and excision of the hematoma. Tunical defect was repaired with PDS 3/0 simple suture. The patient had a great postoperative evolution without local complications. The early diagnosis and surgical treatment reaches better functional results, with maintenance of erectile function in patients with penile fracture.

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Penile traumatic injuries are rare with potentially severe consequences, with clinical assessment challenging due to pain and swelling. Ultrasound is the primary imaging modality for assessing the penis. It has a high spatial resolution and rapid availability and is portable. Contrast enhanced ultrasound is an advanced ultrasound technique that adds real-time dynamic vascular imaging safely, increasing diagnostic precision and confidence, allowing for better therapeutic management of traumatic penile injuries. Contrast enhanced ultrasound helps to delineate the extent of a haematoma, distinguishing this from the herniated corpus cavernosum, detecting the point of rupture of the tunica albuginea, showing vascular abnormalities, localising a dislocated penis and determining penile viability. The integrity of the urethra may be assessed with intracavitary contrast enhanced ultrasound. Additionally, contrast enhanced ultrasound allows monitoring of the response to endovascular and surgical treatment. This review aims to detail the anatomy and pathogenesis of penile trauma, to give guidance on optimising the contrast enhanced ultrasound technique and to obtain diagnostic examinations. Illustration of the spectrum of aspects of penile trauma will be complemented with a literature review.Critical relevance statement Contrast enhanced ultrasound is a safe and efficient imaging modality that allows for highly accurate diagnoses, helping achieve more successful and conservative treatments of penile trauma complications.Key points• Ultrasound is an accurate and safe imaging test for penile trauma.• CEUS adds dynamic vascular imaging in real-time increasing diagnostic confidence.• CEUS can delineate penile haematomas, locate fractures and demonstrate vessel integrity.• CEUS potentially allows for more conservative treatment of penile trauma complications.

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INTRODUCTION: The injuries of the external genital organs in men accounts for 30-50% of the total number of injuries of genitourinary system. In half of the cases, there is a trauma of the penis. In 80% of cases, trauma of the penile or scrotal area occurs. AIM: To study the role of Doppler ultrasound in diagnosing injuries of the scrotum and penis. MATERIALS AND METHODS: The analysis of Doppler ultrasound study of the scrotum and penis in 32 patients with injuries of the external genital organs was carried out. RESULTS: The analysis revealed various ultrasonographic variants of damage to the penis and scrotum. In the vast majority of cases, scrotal trauma without testicular rupture (n=15; 46%) and with testicular rupture (n=11; 33%) was seen. Penile injury was diagnosed in 6 (19%) patients. CONCLUSION: Doppler ultrasound is a gold standard for diagnosing injuries of the scrotum and penis. The mandatory ultrasound study allows to determine the indications and type of salvage surgical procedure.

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Introduction: Penile reconstructive and prosthetic surgery remains a highly specialized field where potential complications can be devastating, and unrealistic patient expectations can often be difficult to manage. Furthermore, surgical practice can vary depending on locoregional expertise and sociocultural factors. Methods: The Asia Pacific Society of Sexual Medicine (APSSM) panel of experts reviewed contemporary evidence regarding penile reconstructive and prosthetic surgery with an emphasis on key issues relevant to the Asia-Pacific (AP) region and developed a consensus statement and set of clinical practice recommendations on behalf of the APSSM. The Medline and EMBASE databases were searched using the following terms: "penile prosthesis implant," "Peyronie's disease," "penile lengthening," "penile augmentation," "penile enlargement," "buried penis," "penile disorders," "penile trauma," "transgender," and "penile reconstruction" between January 2001 and June 2022. A modified Delphi method was undertaken, and the panel evaluated, agreed, and provided consensus statements on clinically relevant penile reconstructive and prosthetic surgery, namely (1) penile prosthesis implantation, (2) Peyronie's disease, (3) penile trauma, (4) gender-affirming (phalloplasty) surgery, and (5) penile esthetic (length and/or girth enlargement) surgery. Main outcome measures: Outcomes were specific statements and clinical recommendations according to the Oxford Centre for Evidence-Based Medicine, and if clinical evidence is lacking, a consensus agreement is adopted. The panel provided statements on clinical aspects of surgical management in penile reconstructive and prosthetic surgery. Results: There is a variation in surgical algorithms in patients based on sociocultural characteristics and the availability of local resources. Performing preoperative counseling and obtaining adequate informed consent are paramount and should be conducted to discuss various treatment options, including the pros and cons of each surgical intervention. Patients should be provided with information regarding potential complications related to surgery, and strict adherence to safe surgical principles, preoperative optimization of medical comorbidities and stringent postoperative care are important to improve patient satisfaction rates. For complex patients, surgical intervention should ideally be referred and performed by expert high-volume surgeons to maximize clinical outcomes. Clinical implications: Due to the uneven distribution of surgical access and expertise across the AP region, development of relevant comprehensive surgical protocols and regular training programs is desirable. Strengths and Limitations: This consensus statement covers comprehensive penile reconstructive and prosthetic surgery topics and is endorsed by the APSSM. The variations in surgical algorithms and lack of sufficient high-level evidence in these areas could be stated as a limitation. Conclusion: This APSSM consensus statement provides clinical recommendations on the surgical management of various penile reconstructive and prosthetic surgeries. The APSSM advocates for surgeons in AP to individualize surgical options based on patient condition(s) and needs, surgeon expertise, and local resources.

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Introduction: High-flow priapism is rare, uncontrolled arterial inflow, preceded by penile or perineal trauma and arterial-lacunar fistula. There are several ways to treat high-flow priapism, i.e., conservative management, the use of ice packs, mechanical decompression, surgery, and super-selective arterial embolization. Embolization is currently widely accepted in patients who fail from conservative management. This study aimed to report the use of Gelfoam and microcoil embolization in recurrent high-flow priapism compared to PVA embolization. Case Study: A 36-year-old man complained of prolonged erection. The erection occurred three days before admission while waking up in the morning, not accompanied by either sexual stimulation or pain. There was a history of fall four days ago in the afternoon, with the patient's groin hitting a rocky ground. Physical examination revealed an erect penis, which felt warm, with an EHS of 4. Blood gas analysis of the corpus cavernosum showed bright red blood with a pH of 7.47, pCO2 of 23.6, pO2 of 145, HCO3 of 17.3, BE of -6, and SaO2 of 99%. Doppler ultrasound examination of the penis showed high-flow priapism. Embolization with PVA was performed, and there were decreased complaints. A few hours later, the erection occurred. Reevaluation was then performed and continued with embolization using Gelfoam and microcoil. There were immediate successful results (EHS of 3) accompanied by a decrease in symptoms. Long-term follow-up has shown a return to normal erectile function six months following the injury. Conclusion: Priapism may happen due to various etiologies. Differentiating high-flow and low-flow is paramount during the acute phase because of different treatment strategies. Conservative management may be applied to high-flow priapism. If conservative management fails, embolization may be attempted. The choice of embolization agent must be taken into account.

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Pelvic fracture is a common cause of traumatic injury of the bladder and posterior urethra; however, isolated corporal injury is rare. We present a case of pelvic fracture associated with proximal injury of the penile corpora cavernosa sparing the urethra and bladder, together with a literature review of erectile dysfunction post-pelvic fracture.

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Traumatic penile amputation is a rare urologic emergency, more so in the pediatric population. It can result in significant consequences concerning function, appearance, psychological effects, and the overall quality of life. Immediate management should be initiated to salvage the amputated penis. We report a case of a four-year-old boy with a traumatic glans penis amputation caused by a sliding door accident. Successful composite grafting of the glans penis was done with an excellent functional and aesthetic outcome. This case highlights composite grafting as a viable option if microvascular replantation of penile amputation is deemed not feasible. Composite grafting is favorable if the grafted tissue is less than 2cm in size and the tissue is not crushed or contused.

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A 14-year-old neutered male British shorthair cat presented with a 21-day history of persistent erection and dysuria, along with overgrooming of the perineal region. Mild palpation induced pain and rigid corpora cavernosa with flaccid glans were observed during physical examination. Ultrasonography of the penis did not detect significant blood flow in the penile cavernosal artery. The drawing of aspirate blood from cavernosal bodies for gas analysis was impossible because of the anatomically small penis size of cats. Conservative management, including topical steroid ointment, lidocaine gel, gabapentin, and diazepam, was prescribed for supportive management. The clinical signs resolved, and ultrasonographic examination of the penis revealed no abnormalities. The cat remains clinically well without recurrence during the 6 months after treatment. To our knowledge, this is the first report of non-ischemic priapism in a cat.

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While penile pathology is uncommon, prompt diagnosis and treatment of emergent and urgent penile pathology are necessary to prevent complications. This paper will review the imaging findings of the most common critical penile pathologies, including traumatic, vascular, infectious, foreign body-related, and urethral pathology, in addition to penile prosthesis complications. Each entity will be discussed in the context of presentation and treatment and complications of each pathology will be discussed.

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Penile fracture is a urologic injury with an etiology that varies based on the cultural milieu. Diagnosis can be made based on history and physical examination alone. Patients should be evaluated with RUG or cystoscopy when urethral injury is suspected. Ultrasound or MRI is a helpful adjunct when the diagnosis is unclear, and can assist in identifying the location of the rupture. Surgical management is favored over conservative measures to improve outcomes. Delayed surgical repair may not be inferior to immediate intervention.

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OBJECTIVE: : To review the literature on adult penile reconstruction due to Peyronie's disease, trauma and cosmesis, while emphasising specific surgical techniques and procedures such as phalloplasty, radial forearm free flap reconstruction, and penile transplant. METHODS: : A comprehensive review of the literature for the years 1992-2020 of the PubMed and SpringerLink databases was performed to identify articles on penile reconstruction. Search terms included 'penile reconstruction', 'penile trauma', 'phalloplasty', 'penile transplant', and 'treatment of Peyronie's'. Relevant articles were selected. All included studies were performed on adults and written in English. RESULTS: : We were able to identify 46 papers from PubMed and SpringerLink that included the research terms. From these, we included technical details of procedures and gleaned photographs of their works. Additionally, we included photographs from our institution's own plication surgery cases. CONCLUSIONS: : The field of adult penile reconstruction is performed for a plethora of reasons. From cosmetic to urgent and from routine to complex, it is most certainly a growing subset of Urology that plays a vital role for the men who need it. To our knowledge, this is the most up-to-date review of adult penile reconstruction.

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Gunshot injuries to the genitourinary system are extremely rare among trauma cases and represent a complex clinical scenario to physicians. This rare case involves a 20-year-old male with a retained bullet in his penis following a close-range, low-velocity gunshot wound to the right lateral thigh. Our case report examines this unique clinical scenario and the diagnostic approach that should be taken to decrease the chances of negative cosmetic and functional outcomes.

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A 37-year-old man presented with pain and abnormal erectile angle following trauma during sexual intercourse. A diagnosis of partial tear of penile suspensory ligament (PSL) was made on magnetic resonance imaging (MRI). Conservative management of the tear was failed and the patient remained symptomatic. Persistent abnormal erectile angle and MRI findings necessitated surgical repair which resulted in a favorable outcome and patient satisfaction.

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Superficial dorsal vein rupture is a rare penile emergency, it presentation could suggest penile fracture instead. While penile fractures are a true emergency, superficial dorsal vein rupture is not as the consequences for the patient are different and loss of erectile function is rare. Herein we report the case of a 49 years old man who presented with acute ecchymosis and swollen appearing after sexual intercourse and suggesting penile fracture, and whom surgical exploration found a tear of the superficial dorsal vein. For which a ligation was accomplished. The prognosis was excellent. The patient reported maintained erectile function.

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INTRODUCTION: Strangulation of the penis is a rare situation that requires urgent treatment for penile decompression. The complications could range from simple edema to severe ones such as urethrocutaneous fistula, complete urethral transection, penile gangrene and penile amputation. This work has been reported in line with the SCARE criteria. CASE PRESENTATION: A 9-year-old patient was presented to the emergency service.During examination of the genitals, the glans was hanging to the penis by a very slim pedicle, its coloration was normal and the urethra was almost cut at the sulcus coronarius. The cause of strangulation was multiple hair coils.We performed single stage reparation which consists of refreshing the edges of the urethra and glans, followed by anastomosing the two cut urethral ends, reinforcement by interposing a well vascularized dartos layer was also performed. At the six months follow-up, the penis had a good cosmetic outcome and the glans sensation was present. DISCUSSION: The penile tourniquet syndrome is one of the major causes of pediatric penile trauma. Ritual circumcision is basically the main cause of the series followed by penile strangulation. Surgical reparation can be performed in one or two stages. It should be performed by a surgeons experienced in hypospadias repair by following the same principles of dissection and applying a second layer coverage for the urethroplasty. CONCLUSION: Hair-coil penile strangulation is an uncommon condition. The repair can be realized in one or two stages but it must be performed by a surgeon experienced in hypospadias surgery. Early surgical repair is required to achieve successful results.