A qeustion of diabetic neuropathy - USMLE Forums
USMLE Forums Logo
USMLE Forums         Your Reliable USMLE Online Community     Members     Posts
USMLE Articles
Go Back   USMLE Forums > USMLE Step 1 Forum

USMLE Step 1 Forum USMLE Step 1 Discussion Forum: Let's talk about anything related to USMLE Step 1 exam

Thread Tools Search this Thread Display Modes
Old 04-25-2015
USMLE Forums Newbie
Steps History: Not yet
Posts: 1
Threads: 1
Thanked 0 Times in 0 Posts
Reputation: 10
Question A qeustion of diabetic neuropathy

Hey,guys.Here is a question from Robbins Reviews of Pathology.I can't understand why the answer B is ruled out in the corret answer.Could anyone give me a hand?Thanks a lot!

A 55-year-old man has had a foot ulcer for 2 months
that has not healed. Physical examination shows a 2-cm shallow,
nonhealing ulceration of the left medial malleolus. There
is symmetric decreased sensation in the distal regions of the
lower extremities. He has a history of multiple urinary tract
infections resulting from difficulty in completely emptying the
bladder. He is impotent. Which of the following pathologic
findings is most likely to be present in the peripheral nerves?
A Acute inflammation
B Axonal neuropathy
C Onion bulb formation
D Segmental demyelination
E Wallerian degeneration

D The features described are consistent with a peripheral
neuropathy associated with diabetes mellitus. Both motor
and sensory nerves can be involved, and there may be
an autonomic neuropathy. Histologic examination shows
an axonal neuropathy with segmental demyelination. Difficulty
in emptying the urinary bladder and impotence
are results of autonomic neuropathy. Longer nerves are
affected first; this explains the lower leg involvement and
accounts for many cases of diabetic foot, with trauma and
subsequent ulceration. Acute inflammation is not generally
seen in neuropathies. Lymphocytic infiltrates may be seen
in Guillain-Barré syndrome. Onion bulb formation is a feature
of the hereditary neuropathy known as Refsum disease.
Wallerian degeneration typically occurs with traumatic
transection of a nerve.
Reply With Quote Quick reply to this message


Quick Reply

Register Now

In order to be able to post messages on the USMLE Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Medical School
Choose "---" if you don't want to tell. AMG for US & Canadian medical schools. IMG for all other medical schools.
USMLE Steps History
What steps finished! Example: 1+CK+CS+3 = Passed Step 1, Step 2 CK, Step 2 CS, and Step 3.

Choose "---" if you don't want to tell.

Favorite USMLE Books
What USMLE books you really think are useful. Leave blank if you don't want to tell.
Where you live. Leave blank if you don't want to tell.


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Similar Threads
Thread Thread Starter Forum Replies Last Post
diabetic retinopathy Faith-USMLE USMLE Step 2 CK Forum 4 08-11-2014 11:33 AM
Diabetic Foot Ulcer; Neuropathy or Circulation! fozia USMLE Step 2 CK Forum 1 09-12-2013 07:18 AM
Treatment of uremic neuropathy usmleman2020 USMLE Step 1 Forum 13 09-13-2011 07:25 AM
Neuropathy and skin lesion! 1TA2B USMLE Step 2 CK Forum 6 06-23-2011 03:48 AM
The mechanism of Progressive Peripheral neuropathy in B12 deficiency laxitjn USMLE Step 1 Forum 1 03-11-2011 02:53 AM

RSS Feed
Find Us on Facebook
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.

USMLE® & other trade marks belong to their respective owners, read full disclaimer
USMLE Forums created under Creative Commons 3.0 License. (2009-2014)