Recurrent Pilonidal Sinus Cyst on Penis

Area of Science:

• Urology
• Dermatology
• Infectious Diseases

Background:

• Pilonidal sinus is a chronic inflammatory condition characterized by sinus tracts and hair, commonly affecting young adults, with a higher prevalence in males.
• Penile pilonidal sinus is an exceptionally rare presentation, with limited documented cases in medical literature.
• The condition typically involves recurrent acute attacks superimposed on a chronic course.

Observation:

• A 20-year-old male presented with a three-month history of a suppurative, discharging lesion on the penile shaft.
• Clinical examination revealed a 3 cm x 2 cm indurated, erythematous, and ulcerative lesion on the ventral aspect of the penis.
• The lesion exhibited characteristics suggestive of a chronic inflammatory or infectious process.

Findings:

• This case represents the first documented instance of recurrent pilonidal sinus on the penis.
• The causative agent identified for this rare penile presentation was Actinomyces israelii.
• The diagnosis was confirmed through clinical presentation and likely microbiological or histopathological examination (though not explicitly stated in the abstract).

Implications:

• This case expands the known anatomical locations for pilonidal sinus, highlighting its potential occurrence beyond the sacrococcygeal region.
• It underscores the importance of considering atypical presentations of pilonidal sinus, especially in the presence of chronic, discharging lesions.
• The identification of Actinomyces israelii as a causative agent in penile pilonidal sinus may inform diagnostic and treatment strategies for similar rare cases.