Chapter 5 Table 5-1 Characteristics of cylindroma versus spiradenoma
Sweat gland neoplasms
Spiradenoma
Characteristic
Cylindroma
Spiradenoma
Blue cells with little cytoplasm
Yes
Yes
Dark and pale blue nuclei
Yes
Yes
Peppered with black lymphocytes
No
Yes
Hyaline droplets in nests
Yes
Yes
Jigsaw-puzzle pattern
Yes
No
Deeply eosinophilic basement membrane
Yes
No
Inheritance
Autosomal dominant
Sporadic
Tender
No
Yes