title: Malignancy in an old pilonidal sinus.
authors.forename: B M
authors.initials: BM
authors.lastname: Frost
authors.forename: A D
authors.initials: AD
authors.lastname: Riddell
authors.forename: S
authors.initials: S
authors.lastname: Austin
authors.forename: B M
authors.initials: BM
authors.lastname: Stephenson
mesh_terms: D000369:Aged, 80 and over; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D005260:Female; D006801:Humans; D010864:Pilonidal Sinus / Q000473:pathology*; D018805:Sepsis / Q000473:pathology*