Skin Diseases

Does This Brown Patch on a Boy’s Buttock Signal Underlying Illness?

April 15, 2020

A 12-year-old boy has had this brown patch on his left buttock since birth. His mother is concerned that the patch has grown over the years and she wants to be sure that it will not be a health concern for her son.

Cellulitis-Adenitis From Late-Onset Group B Streptococcus Infection

February 07, 2013

A 2-month-old infant had right submandibular swelling with inflammation and induration up to the nape of neck. Ultrasonography showed multiple enlarged lymph nodes with soft tissue swelling. Blood cultures grew Gram-positive cocci, which were identified as group B streptococci. Late-onset GBS infection is acquired from colonized household contacts.

Granuloma Annulare and Bell Palsy

December 13, 2012

Test your skills in this 5-question quiz.QUESTION 1: A 16-year-old boy presented with an extremely pruritic rash on the elbows, at the wrists, and on the top of the hands. This is classic for granuloma annulare.  Courtesy of Ted Rosen, MD