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Onion Bulb :

Dr Sampurna Roy MD           July 2016

 

Onion Bulb Structures in Digital Pacinian Neuroma

Small painful nodule on the fingers of middle-aged adults.

The lesion is composed of abnormal aggregates of morphologically mature Pacinian corpuscles (onion-bulb structures) and intervening small nerves set in a fibrous backround.

This lesion should be distinguished from other neural lesions containing pseudo-onion bulb structures which are not true well formed Pacinian corpuscles.

Visit: Reactive lesions of the Peripheral Nerve - Digital Pacinian Neuroma

Low power view                                        Masson's Trichrome stain

 

Further reading:

Pacinian corpuscle neuroma of digital nerves.

Pacinian corpuscle hyperplasia in the hand.

Digital pacinian corpuscle neuroma eroding bone: a case report.

Digital pacinian neuroma: a distinctive hyperplastic lesion.

Pacinian corpuscles hyperplasia--an uncommon cause of digital pain.

A rare case of Pacinian corpuscle neuroma.

[Digital pacinian hyperplasia. Report of a case associated with foreign body reaction].

Subepineural hyperplastic pacinian corpuscle: an unusual cause of digital pain.

 

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Dr  Sampurna Roy  MD

Consultant Histopathologist (Kolkata - India)

 

 


 

 

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