Zoon balanitis: A comprehensive review

Zoon's Balanitis - Update of Clinical Spectrum and Management

Zoon's balanitis or balanitis plasmacellularis circumscripta is a chronic inflammatory disorder of the genital mucosa that can affect both males and females (Zoon's vulvitis). It is not a sexually transmitted disease but can still cause anxiety to the patients because of its chronic nature. Hence, proper diagnosis and early management are necessary. It is a clinical mimicker of other commoner genital dermatoses and is mostly a diagnosis of exclusion when other diseases have been ruled out. It is characterised by a well-demarcated shiny erythematous patch or plaque over the genital mucosa. Histopathological examination becomes necessary when we are unable to differentiate it from premalignant lesions. It reveals lozenge-shaped keratinocytes with siderophages, haemorrhages and variable plasma cell infiltrate in the dermis. Dermoscopy shows spermatozoa-like, convoluted vessels with structureless red orange areas. Response to topical therapy alone is not always satisfactory. However, lasers and surgical management can provide long-term remission.

Altered mRNA Expression of NFKB1 and NFKB2 Genes in Penile Lichen Sclerosus, Penile Cancer and Zoon Balanitis

BACKGROUND

The nuclear factor-κB transcription factors 1 and 2 (NFKB1 and NFKB2) are key components of the NF-κB pathway, which responds to inflammatory signals. Since the NFKB1/2 factors are activated via different inflammatory molecules, we aimed to check their expression levels in penile cancer (PC), penile dermatoses: lichen sclerosus (PLS) and zoon balanitis (ZB).

METHODS

Skin biopsies from altered and healthy looking foreskin were obtained from 59 (49 LS; early PLS: 13, moderate PLS: 32, severe PLS: 4; 6 PC; 4 ZB) and unchanged foreskin from 13 healthy control adult males undergoing circumcision. NFKB1/2 mRNA levels were quantified by qPCR.

RESULTS

The highest levels of NFKB1 and NFKB2 were observed in PC, ca. 22 and 3.5 times higher than in control, respectively. NFKB1 expression was correlated with PLS progression (rs = 0.667) and was ca. 20 times higher in advanced PLS than in controls and early PLS. Occurrence of micro-incontinence was associated with elevated NFKB1 levels in PLS.

CONCLUSION

This is the first study regarding gene profiles of NFKB1/2 in PC and penile dermatoses. New drugs targeting modulation of canonical-activated NF-κB pathway should be studied and introduced to the treatment of PLS and PC apart from other treatments.

Zoon's balanitis presenting as discrete polyp on glans penis

The diagnosis of genital dermatological conditions in males can be challenging and rely on physical examination and biopsy. This report describes an unusual case of Zoon's balanitis producing a discrete polyp on the glans penis, in addition to the classically described well-demarcated erythematous macule.

Dermoscopic characterization of zoon balanitis: First case series from Asia

Zoon balanitis is a rare chronic inflammatory dermatosis involving genitalia. It is often misdiagnosed or diagnosed late leading to significant patient distress. Dermoscopy can act as a useful modality in prompt diagnosis of zoon balanitis. Herein, we report dermoscopic findings in twelve lesions of zoon balanitis in seven patients.

Urologic dermatology: a comprehensive foray into the noninfectious etiologies of balanitis

Balanitis is classically defined as inflammation of the glans penis, often also encompassing the prepuce (balanoposthitis). Several investigations have found that a sizable proportion of urology clinic visits are due to balanitis or related complaints. Balanitis can have numerous complications, including severe pain, urethral stenosis, phimosis, sexual dysfunction, and if untreated, malignancy. Unfortunately, there is no recent or comprehensive review that describes the various etiologies, clinical workup, and treatments for balanitis. Herein this review, we attempt to provide the reader with a complete and updated guide to balanitis in an attempt to improve clinical outcomes.

Pathologically oriented descriptive study of male genital circumcisions across medical and surgical specialties

BACKGROUND

Circumcision is one of the most frequently performed procedure by clinicians, yet its role and indication in clinical practice lacks consensus and remains unclear. We sought to evaluate a collection of male circumcisions to determine the range of indications, histopathological diagnoses, and type of clinicians associated with circumcision.

METHODS

We performed a retrospective descriptive cohort study of male patients who received a circumcision reported by one major dermatopathology laboratory between January 2017 and December 2018. Data were extracted from the histological report of the pathologist for each case. Patient age, type of clinician, clinical notes, and histopathological diagnosis were evaluated.

RESULTS

"/> A total of 406 circumcisions were identified. The median age for circumcision was 36 (IQR 16-61). Boys less than 18 years of age made up 24% (98/406). Histological diagnoses included normal (43/406, 11%), nonspecific inflammation (82/406, 20%), inflammatory conditions (264/406, 65%), infections (9/406, 2.2%), benign neoplasms (5/406, 1.0%), and scar tissue (3/406, 0.7%). The most common diagnosis was balanitis xerotica obliterans (226/406, 56%). Rarely, genital infections and neoplastic lesions were identified. Circumcisions were performed by urologists (289/406, 71.2%), general practitioners (76/406, 18.7%), general surgeons (32/406, 8%), pediatric surgeons (5/406, 1%), and dermatologists (4/406, 1%). The main indications for circumcision were phimosis (110/202, 54%), suspected lichen sclerosus (28/202, 14%), and balanitis (15/202, 7%).

CONCLUSION

Circumcision was performed for a broad range of genital dermatoses across various medical and surgical specialties. Few studies have described these observations. We discuss the common pathological conditions leading to circumcision and its role in diagnosis and treatment.

Benign dermatoses of the male genital areas: A review of the literature

The male genitalia are a common site of dermatoses. Patients with penile diseases often delay or avoid medical care due to anxiety and embarrassment. In this narrative review, we describe some of the main benign dermatoses localized to male genital, focusing on their epidemiology, clinical and dermoscopic features, as well as available therapies.

Thalidomide in plasma cell balanitis refractory to conventional topical treatment

Zoon's plasma cell balanitis is a chronic genital inflammatory dermatosis that affects uncircumcised men, especially the elderly. It's characterized by painless erythematous plaques of orange hue, located on the glans penis and foreskin. Circumcision is the most effective treatment; however, it can be hard for patients to accept. As an alternative, topical calcineurin inhibitors are used, with good response. This article reports the case of a 32-year-old patient, HIV carrier, diagnosed with Zoon's plasma cell balanitis. Treatment with topical tacrolimus was administered, without improvement. A 6-week course of thalidomide resulted in complete remission of the lesions, without recurrence after eight months of follow-up.

Simultaneous Occurrence of Balanoposthitis Circumscripta Plasmacellularis Zoon, Phimosis and in Situ Carcinoma of the Penis: Case Report with An Unusual Ulcerated Polypoid Variant of Zoon's Disease and a Carcinoma in Situ of Reserve Cell Type

BACKGROUND

Zoon's balanitis is a benign disease characterized by an asymptomatic, chronic, solitary, shiny, red-orange plaque of the glans and/ or prepuce. In rare cases of Zoon's disease, penile squamous cell carcinoma developed in the chronic inflammatory lesions.

CASE REPORT

We report on a 68-year-old male patient presenting with phimosis and coexistent Zoon's disease and penile carcinoma in situ treated successfully by circumcision.

CONCLUSION

Coexistence of both lesions in contrast to the development of cancerous lesions within pre-existent Zoon's disease is a very rare observation.

Lichenoid Dermatitis of the Vulva: Diagnosis and Differential Diagnosis for the Gynecologic Pathologist

Inflammatory processes affecting the vulva may present a unique challenge due to location specific changes. Different factors are behind the intricacy in the presentation of vulvar dermatoses. First, the vulva is lined by different epithelia (hair-bearing keratinized epithelium, modified mucosa, and mucosa). Furthermore, among other factors, this organ is exposed to friction, occlusion, and trauma. Lastly, as there is a tendency to look for health care advice at an advanced stage of the disease, the lesion may be modified by secondary changes due to self-treatment. This article describes the clinical presentation and pathologic features of vulvar dermatoses with a lichenoid pattern and highlights practical points for their diagnoses.

Successful Management of Zoon's Balanitis with Topical Mupirocin Ointment: A Case Report and Literature Review of Mupirocin-Responsive Balanitis Circumscripta Plasmacelluaris

INTRODUCTION

Zoon's balanitis, also referred to as balanitis circumscripta plasmacellularis (BCP), is an idiopathic, benign inflammatory condition of the glans penis and foreskin most often seen in elderly uncircumcised men. A patient with a biopsy-confirmed diagnosis of BCP who was successfully treated with topical mupirocin ointment is described.

METHODS

The PubMed database was searched with the key words: bactroban, balanitis, cell, circumscripta, mupirocin, plasma, plasmacellularis, tacrolimus, Zoon. The papers generated by the search and their references were reviewed.

RESULTS

Treatments for BCP have previously included circumcision and topical calcineurin inhibitors. Our patient with BCP rapidly resolved after initiating treatment with mupirocin 2% ointment.

CONCLUSION

BCP is a benign dermatosis affecting the glans penis and foreskin. We confirm an earlier observation demonstrating successful management of this condition with topical mupirocin 2% ointment. Previously reported therapies include circumcision, topical calcineurin inhibitors, phototherapy, and laser therapy. However, based on our observations, topical mupirocin 2% ointment therapy may be considered for the initial management of patients with suspected BCP. Prompt response to mupirocin 2% ointment is highly suggestive of the diagnosis of BCP since morphologically similar skin conditions do not respond to this treatment.