<unk> , also spiroma  or eccrine<unk> , is a cutaneous condition that is typically characterized, clinically, as a solitary, deep-seated dermal nodule of approximately one centimeter, occurring on the ventral surface of the body.:666<unk>  lesions are benign sudoriferous tumors,  and have also been described as cystic epitheliomas of the sweat glands.
The histological origin is controversial.
Spiradenoma
Hidrocystoma
Sebaceoma
Syringoma
Ganglion cyst
Acrospiroma
Cementoblastoma
Pilomatricoma