Home | About Us | Current Issue | Ahead of print | Archives | Search | Instructions | Subscription | Feedback | Editorial Board | e-Alerts | Login 
Journal of Indian Association of Pediatric Surgeons
     Journal of Indian Association of Pediatric Surgeons
Official journal of the Indian Association of Pediatric Surgeons         
 Users Online:518 
  Print this page Email this page   Small font sizeDefault font sizeIncrease font size

Year : 2008  |  Volume : 13  |  Issue : 4  |  Page : 155-156

Perineal lipoma associated with penoscrotal transposition in a neonate

Department of Pediatric Surgery, Chacha Nehru Bal Chikitsalaya and Maulana Azad Medical College, Geeta Colony, Delhi-110 031, India

Correspondence Address:
Anup Mohta
28-B, Pocket-C, S.F.S. Flats, Mayur Vihar Phase-III, Delhi-110 096
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0971-9261.44772

Rights and Permissions



A neonate with perineal lipoma associated with penoscrotal transposition and bifid scrotum is reported.

Keywords: Lipoma, neonate, penoscrotal transposition

How to cite this article:
Mohta A, Das S, Sengar M. Perineal lipoma associated with penoscrotal transposition in a neonate. J Indian Assoc Pediatr Surg 2008;13:155-6

How to cite this URL:
Mohta A, Das S, Sengar M. Perineal lipoma associated with penoscrotal transposition in a neonate. J Indian Assoc Pediatr Surg [serial online] 2008 [cited 2023 Mar 26];13:155-6. Available from: https://www.jiaps.com/text.asp?2008/13/4/155/44772

   Introduction Top

Perineal lipoma is uncommon in neonates and its association with penoscrotal transposition is even more uncommon.

   Case Report Top

A 2-week-old baby presented with a mass beneath the scrotum. There was no difficulty in passing urine. On examination, the penile shaft was placed between two halves of the scrotum embedded along the scrotum and the posterior aspect of the scrotum was partially separated. A 3-4 cm midline perineal mass was present just beneath the divided scrotum; it was covered with smooth shiny skin without any rugosity and was soft in consistency [Figure 1]. This was diagnosed as perineal lipoma. Both testicles were palpable in the scrotum. The urethral meatus was present at the tip of the glans. The anorectal examination was normal. Complete blood count and urine examination were normal. The ultrasound of the urinary tract did not reveal any anomaly.

The child underwent scrotoplasty using bilateral V-Y plasty and excision of the perineal mass at five months of age. The postoperative cosmetic result was satisfactory to the parents. Histological examination of the excised mass showed mature fat cells without atypical cells and absence of any muscle fibers in the subcutaneous region.

   Discussion Top

Developmental scrotal anomalies are uncommon occurrences. Bifid scrotum and penoscrotal transposition are commonly seen, while accessory or ectopic scrotum is very rare. [1] Perineal lipomas are said to occur infrequently in association with scrotal anomalies and are rarely reported in neonates. [1],[2],[3] They are more commonly seen to occur with anorectal malformations. [4]

At the fourth week of gestation, a genital swelling normally appears at both sides of the inguinal region and gradually forms the labioscrotal swelling at 10-12 weeks of gestation. These swellings migrate to the caudal portions and merge beneath the penis, which remains as the scrotal raphe, the line of fusion. It has been suggested that scrotal anomalies may result from early division and/or abnormal migration of the labioscrotal swelling. [5] Unilateral failure or abnormal migration might result in unilateral penoscrotal transposition or ectopic scrotum, and early division of a labioscrotal swelling with subsequent abnormal migration might result in an accessory scrotum. Park et al [1] suggested that the concomitant development of a perineal lipoma might interrupt the normal migration of the labioscrotal swelling leading to development of bifid scrotum and penoscrotal transposition. They classified the perineal lipomas into two types. The protruding type that has a disruptive effect on the continuity of the developing caudal labioscrotal swelling; and the peduncular type, an outpouching single mass composed of two types of tissue elements, which originates by early division of pleuripotential labioscrotal tissue elements. These need to be differentiated from accessory scrotum, sacrococcygeal teratoma, perineal hernia, or other perineal tumors. [2] A perineal lipoma can be differentiated from accessory scrotum by absence of rugosity on the skin during clinical examination and smooth muscle (dartos) fibers on histological examination. Radiological investigations like ultrasonography and magnetic resonance imaging may be necessary to differentiate perineal lipoma from other lesions in the region.

Perineal lipoma that occurs in association with the scrotal anomalies alone can be excised without difficulty along with scrotal reconstruction. The perineal lipoma that occurs in association with the anorectal malformation can be excised at the time of definitive procedure for the anorectal anomaly.

   References Top

1.Park KH, Hong JH. Perineal lipoma in association with scrotal anomalies in children. BJU Int 2006;98:409-12.  Back to cited text no. 1  [PUBMED]  [FULLTEXT]
2.Bataille D, Donner C, Cassart M, Pardou A, Nagy N, Van Hoorde E, et al . Perineal lipoma in a newborn boy: A case report. Eur J Pediatr Surg 2007;17:136-8.  Back to cited text no. 2  [PUBMED]  
3.Ogasawara Y, Ichimiya M, Nomura S, Muto M. Perineal lipoma in a neonate. J Dermatol 2001;28:165-7.  Back to cited text no. 3  [PUBMED]  
4.Wester T, Rintala RJ. Perineal lipomas associated with anorectal malformations. Pediatr Surg Int 2006;22:979-81.  Back to cited text no. 4  [PUBMED]  [FULLTEXT]
5.Lamm DL, Kaplan GW. Accessory and ectopic scrota. Urology 1977;9:149-53.  Back to cited text no. 5  [PUBMED]  


  [Figure 1]

This article has been cited by
1 Case Report: Congenital Perineal Lipoma Associated With Additional External Genitalia Anomalies
Francesca Tocchioni, Chiara Caporalini, Annamaria Buccoliero, Flavio Facchini, Marco Ghionzoli, Francesco Morini
Frontiers in Pediatrics. 2022; 10
[Pubmed] | [DOI]
2 Prenatal diagnosis of complete penoscrotal transposition with normal scrotum: Two case reports and review of the literature
Didar Kurt, Tugba Saraç Sivrikoz, Halil Ibrahim Kalelioglu, Recep Has, Hasan Orhan Ziylan, Atil Yüksel
Journal of Clinical Ultrasound. 2020; 48(6): 350
[Pubmed] | [DOI]
3 Urethral Duplication With Heterotopic Colonic Epithelium Presenting as Penoscrotal Mass: A Rare Association
Nayab Danish, Mohd S. Ansari, Hira Lal, Priyank Yadav
Urology. 2020; 142: 200
[Pubmed] | [DOI]


Print this article  Email this article
Previous article Next article


   Next article
   Previous article 
   Table of Contents
    Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
    Article in PDF (310 KB)
    Citation Manager
    Access Statistics
    Reader Comments
    Email Alert *
    Add to My List *
* Registration required (free)  

    Case Report
    Article Figures

 Article Access Statistics
    PDF Downloaded176    
    Comments [Add]    
    Cited by others 3    

Recommend this journal

Contact us | Sitemap | Advertise | What's New | Copyright and Disclaimer | Privacy Notice

 © 2005 - Journal of Indian Association of Pediatric Surgeons | Published by Wolters Kluwer - Medknow 

Online since 1st May '05