Subcutnaous cystic lesion having fibrotic wall lined by keratinized squamous epithelium with related hair follicles, sebaceous glands and sweat glands. No evidence of immature elements. No evidence of atypia or malignancy.
Pilonidal coccygeal sinus.
Partially covered soft tissue fragment by a skin measured 1.3x0.8x0.7 cm, cut section showing underlying cyst 0.8x0.7 cm.
Coccygeal lesion, biopsy: