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Case Reports
. 2017 Jul;11(7):MD09-MD10.
doi: 10.7860/JCDR/2017/25798.10321. Epub 2017 Jul 1.

Pigmented Trichoblastoma of Nose: An Unusual Occurrence

D C Sathyaki  1 , Mohammed Riyas  2 , Mereen Susan Roy  1 , R Jyothi Swarup  3 , Nibha Raghu  2
Affiliations
Case Reports

Pigmented Trichoblastoma of Nose: An Unusual Occurrence

D C Sathyaki et al. J Clin Diagn Res. 2017 Jul.

Abstract

Nevus sebaceus of Jadassohn is a congenital tumour affecting the scalp and face. It is usually presented as a pigmented patch or plaque. It is a complex cutaneous hamartoma which involves pilosebaceous follicle, epidermis and adnexal structures. Tumours that arise from nevus sebaceous are basal cell carcinoma, syringocystadenoma papilliferum, trichoblastoma and hidradenoma. The progression and frequency of the tumour increase with the age. Here we present a case of pigmented trichoblastoma over the external nose. It was a case of an elderly woman presenting with a painless swelling over the external nose which was soft, non-tender and with well defined margins.

Keywords: Nevus sebaceous of Jadassohn; Trichoepithelioma; Tumour.

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Figures

[Table/Fig-1]:
[Table/Fig-1]:
The clinical presentation.
[Table/Fig-2]:
[Table/Fig-2]:
The gross specimen.
[Table/Fig-3]:
[Table/Fig-3]:
The postoperative picture.
[Table/Fig-4]:
[Table/Fig-4]:
Histopathological section under 4X, showing a tumour in dermis which is separated from the epidermis.
[Table/Fig-5]:
[Table/Fig-5]:
Histopathological section under 10X, showing nests of basaloid cells with peripheral palisading separated by myxoid matrix.
[Table/Fig-6]:
[Table/Fig-6]:
Histopathological section under 40X, showing nests of basaloid cells separated by myxoid matrix. Pigmentation is seen within the basaloid cells.
See this image and copyright information in PMC

References

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