[Studies on chronic decubitus ulcers after spinal injuries. 1. Histological studies with four cases of decubitus cancer from sacral ulcers].
D000328:Adult; D002294:Carcinoma, Squamous Cell / Q000209:etiology*; D002921:Cicatrix; D006801:Humans; D008297:Male; D008875:Middle Aged; D003668:Pressure Ulcer / Q000150:complications / Q000473:pathology*; D012445:Sacrococcygeal Region; D012878:Skin Neoplasms / Q000209:etiology*; D013119:Spinal Cord Injuries / Q000150:complications