In pathology, a<unk>  is a tumour with nests of cells that resemble a cylinder in cross section.
Types include:
Dermal eccrine<unk> , a benign tumour of the skin
Adenoid cystic carcinoma, a malignant tumour of the salivary gland
Cylindroma
Trichoblastoma
Hamartoma
Thecoma
Syringoma
Dermoid cyst
Hidrocystoma
Epidermoid cyst