A rare pediatric cutaneous granular cell tumour of the trunk

Hamad  Almutlaq; Ahmed  Alhumidi

doi:10.23750/abm.2026.18258

A rare pediatric cutaneous granular cell tumour of the trunk

Authors

Hamad Almutlaq Department of Dermatology, Faculty of Dermatology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
Ahmed Alhumidi Department of Pathology, Faculty of Pathology, College of Medicine, King Saud University, Riyadh, Saudi Arabia

Keywords:

Granular cell tumour, benign, malignant, conservative management.

Abstract

Granular cell tumour (GCT) is another rare benign tumour of Schwann cell origin that may arise in virtually any location of the body. We present the case report of a seven-year-old male who presented with a slow-growing, asymptomatic, brownish plaque on the upper right back. Histopathology showed dermal cell proliferation, characterized by numerous eosinophilic granular cytoplasmic inclusions within a sclerotic background. A positive immunohistochemical staining for S-100 and CD68 confirmed the diagnosis of a benign granular cell tumour. The lesion was not very large and remained stable; therefore, the family decided not to excise it immediately, but rather to observe it. This case has highlighted the importance of confirmation through histopathology and immunohistochemistry in suspected GCT, particularly in the pediatric population, where clinical imitation is common. It also emphasises the fact that a conservative approach to management is suitable in cases where the lesion is benign and asymptomatic.

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