title: [Malignant giant cell tumor, initially diagnosed as a pilonidal cyst].
mesh_terms: D000328:Adult; D003050:Coccyx / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D005870:Giant Cell Tumors / Q000473:pathology*; D006801:Humans; D010864:Pilonidal Sinus / Q000175:diagnosis; D013125:Spinal Neoplasms / Q000473:pathology*
vernacular_title: Malign kaempecelletumor primaert opfattet som pilonidalcyste.