Differential Diagnosis > Morphology > Reaction Patterns > Dermal > Tumors > Adnexal Tumors

Adnexal Tumors

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adnexal:

•grow when sweating:    eccrine hydrocystoma
•grows during puberty:   syringocystadenoma papilliferum

 

 

 

Characteristic distribution:

 

sole of foot poroma

 

face of child pilomatricoma

 

perineum of a woman hidradenoma papilliferum

 

lateral to the outer canthus of eye apocrine hidrocystoma

 

anogenital region/ axillae (high density of apocrine glands) extramammary paget’s disease

 

peri-orbital syringoma

 

 

 

Easy histology:

 

tadpoles syringoma

 

blue balls in the dermis eccrine spiradenoma

 

jigsaw puzzle cylindroma