Distal phalanx intraosseous epidermoid inclusioncyst: A rare thing!

Pathological structures called epidermoid bone inclusion cysts are surrounded by a layer of stratified squamous epithelium that contains keratin debris. They go the name epidermal as well. Intraosseous uncommon lesions can develop result trauma (puncture wound or pressure erosion). typically affect toes, phalanges, and head. The distal phalanx fingers is where phalangeal involvement most frequently occurs. Despite fact cause intraosseous still unknown, majority patients do recall prior traumatic event, supporting post-traumatic origin theory. Following digital surgery, it hypothesised surface epithelial cells pushed into underlying osseous compartment. initiating symptoms may start to appear months years later. It challenging distinguish on radiographs from other radiolucent lesions, necessitating tissue diagnosis. We present case 45-year-old man with right middle finger edoema for five known history minor blunt trauma. A well-defined expansile hypodense lytic lesion eccentric erosion was discovered during radiological analysis. creamy substance found inside after later determined histology be an cyst. Gross examination surgical specimen indicated cystic significant necrotic regions pale, material. burst cyst upon microscopic inspection effectively removed.