# Dermatofibrosarcoma Protuberans of the Forehead: Case Report of a Rare Entity and Review of Literature

**Authors:** Ulrich Igor Mbessoh Kengne, Jaafar Ibn Abou Talib Thiam, Amacoumba Fall, Salif Balde, Mamadou Ndiaye, Joel Gabin Konlack Mekontso, Gorgui Sarr, Etienne Tossou Zoure, Mamadou Sow, Sidy Ka

PMC · DOI: 10.1155/crom/9991548 · Case Reports in Oncological Medicine · 2025-05-08

## TL;DR

This paper presents a rare case of forehead DFSP in a 33-year-old man who had multiple surgeries and was treated with imatinib, emphasizing the need for a multidisciplinary approach.

## Contribution

The novelty lies in reporting a rare forehead DFSP case with multiple recurrences and the use of systemic imatinib therapy.

## Key findings

- DFSP occurred in the forehead and extended to the frontal sinus in a 33-year-old male.
- The patient had three prior surgeries and was managed with systemic imatinib therapy.
- The case highlights the challenges of treating DFSP in uncommon locations.

## Abstract

Dermatofibrosarcoma protuberans (DFSP) is a rare soft tissue sarcoma originating from fibroblasts in the dermal connective tissue, comprising approximately 1% of all soft tissue sarcomas. While most cases involve the trunk and extremities, only 10%–15% occur in the cephalic region, representing less than 1% of all head and neck neoplasms. DFSP is notable for its high propensity for local recurrence following surgical excision and its low metastatic potential. We report a case of recurrent DFSP of the forehead extending to the anterior wall of the left frontal sinus, without brain involvement, in a 33-year-old male with a history of three prior wide local excisions. A multidisciplinary cancer team recommended systemic imatinib therapy. This case highlights the challenges of managing DFSP in an uncommon location, underscoring the importance of a multidisciplinary approach in addressing recurrent and complex presentations.

## Linked entities

- **Chemicals:** imatinib (PubChem CID 5291)
- **Diseases:** Dermatofibrosarcoma protuberans (MONDO:0011934), soft tissue sarcoma (MONDO:0018078)

## Full-text entities

- **Genes:** PDGFB (platelet derived growth factor subunit B) [NCBI Gene 5155] {aka IBGC5, PDGF-2, PDGF2, SIS, SSV, c-sis}, COL1A1 (collagen type I alpha 1 chain) [NCBI Gene 1277] {aka CAFYD, EDSARTH1, EDSC, OI1, OI2, OI3}, CD34 (CD34 molecule) [NCBI Gene 947], F13A1 (coagulation factor XIII A chain) [NCBI Gene 2162] {aka F13A}, CD44 (CD44 molecule (IN blood group)) [NCBI Gene 960] {aka CDW44, CSPG8, ECM-III, ECMR-III, H-CAM, HCELL}, S100A1 (S100 calcium binding protein A1) [NCBI Gene 6271] {aka S100, S100-alpha, S100A}, VIM (vimentin) [NCBI Gene 7431]
- **Diseases:** cutaneous malignancy (MESH:C562393), Cancer (MESH:D009369), metastasis (MESH:D009362), complete eye occlusion (MESH:D001157), head and neck neoplasms (MESH:D006258), bone lysis (MESH:D015275), keloids (MESH:D007627), palpebral ptosis (MESH:C564553), dermoid cysts (MESH:D003884), cutaneous sarcoma (MESH:D012509), Trauma (MESH:D014947), hypertrophic scars (MESH:D017439), Kaposi sarcoma (MESH:D012514), toxicity (MESH:D064420), vascular malformations (MESH:D054079), epilepsy (MESH:D004827), dermatofibromas (MESH:D018219), nodular fasciitis (MESH:D005208), DFSP (MESH:D018223), pyogenic granuloma (MESH:D017789), basal cell carcinoma (MESH:D002280), burns (MESH:D002056), lipomas (MESH:D008067), schwannoma (MESH:D009442), neurofibroma (MESH:D009455), seizures (MESH:D012640), epidermal cysts (MESH:D004814), tumorigenesis (MESH:D063646)
- **Chemicals:** imatinib (MESH:D000068877), antiepileptic medications (-)
- **Species:** Homo sapiens (human, species) [taxon 9606]

## Full text

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## Figures

5 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12081156/full.md

## References

17 references — full list in the complete paper: https://tomesphere.com/paper/PMC12081156/full.md

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Source: https://tomesphere.com/paper/PMC12081156