A case of Nevus Sebacious Jadasson

Raghvendra Narayan; Shivani Singh

doi:https://10.7199/ped.oncall.2027.19

Raghvendra Narayan¹, Shivani Singh².

¹Department of Paediatrics, Kurma Sanskriti Medical College and Hospital, Jehanabad, India,
²Department of Dentistry, Kurma Sanskriti Medical College and Hospital, Jehanabad, India.

ADDRESS FOR CORRESPONDENCE
Raghvendra Narayan, 3B 3, Bhnukutir Apartment, Ranjan Path, Patna, Patna, 801503
Email: drrgh1971@gmail.com

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Keywords

Nevus, Sebaious, Hamartoma, Jadassohn.

A 8 year old child presented in outpatient department in our Institute with presenting complaint of some indurated lesion over the scalp since birth that gradually progressed to present size. Parents also complained that hairs were not grown on that lesion. Patient has not any other relevant complaints. On examination there was indurated lesion measuring approximately 5 cm x 5 cm, almost oval in shape, thickened, fixed to the scalp. A diagnosis of Nevus Sebaceous was made provisionally and confirmed by the dermatologist of our Institute. Patient was referred with consultation of dermatologist to plastic surgeon for further management. We are reporting this case as it is not a common case in department of paediatrics and to aware about this condition and its serious complication as malignant transformation in approximately 5%.

Figure 1. Indurated lesion over the scalp.

<b>Figure 1.</b> Indurated lesion over the scalp.

Nevus sebaceous is categorized as a type of epidermal appendegeal nevus arising from the hyperplasia of epithelial, sebaceous, follicular and apocrine skin but primarily affecting sebaceous gland.¹ It is a congenital hamartomatous lesion which predominantly affects scalp in approximately 50% of the cases.² It was first described by Jadasson in 1895, so also known as Jadasson nevus. Also known as organoid nevus, pilosyringosebaceous nevus.³ Majority lesions are benign in nature. In less than 5% of cases, there is a risk of malignant transformation, frequently observed in fourth decade of life with basal cell carcinoma being the most common malignant tumor.¹ Nevus Sebaceous is a hamartoma comprising various elements which are indigenous to the organ not merely the sebaceous units pathologically.⁴ There is absence of normal terminal hair follicles in the lesion leading to alopecia within the lesion clinically. This is a feature of diagnostic importance.⁵ Though malignant transformation is uncommon, a regular follow up of the patient is mandatory specially if there are clinical changes noticed in the lesion.

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Funding None

Conflict of Interest None

References

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