Periosteal Ganglia Presenting as Subcutaneous Nodules on the Tibia

Abstract

munication represents a practice gap, and it behooves dermatologists to step in and fill this gap. The JAMA network, including JAMA Dermatology, offers the Patient Page to provide essential, credible information about common and obscure medical conditions from experts in the field. This content is free and accessible at all times. Since beginning quarterly publication of the JAMA Dermatology Patient Page in 2013, those pages have been viewed a combined total of 5094 times on the JAMA Dermatology website as of December 12, 2013. The morphea page 1 alone has reached 957 people via Facebook and has received 60 likes, comments, and shares. We provide accurate education about dermatologic diseases to guide our patients with diseases like morphea who are at high risk of stumbling across misinformation on the Internet about systemic sclerosis that could cause increased anxiety and unnecessary fear. One of our core roles as physicians is to serve as teachers, for our students, our colleagues, and first and foremost for our patients. The Patient Page is a step along that path, but as Bhatia suggests, the mobile apps represent a way for dermatologists to educate their patients.

A case report on rare occurrence of periosteal ganglion cyst in femoral intercondylar region

“…Other locations are distal end of ulna, radius, femur, medial malleolus and ilium. 4,5,11 The etiological reason for appearance of periosteal ganglion is largely unknown. Repetitive stress and trauma are speculated causes.…”

“…Usual presentation is swelling, diffuse tenderness and occasional derangement of joint. 5 Unusual presentation occurs in ganglions associated with major vessels and nerves. Major vessel may bleed into ganglion such that it becomes hot, swollen, red and painful.…”

“…2,3 These are very rare occurrence with only few cases reported in literature. [4][5][6] We report a clinical case of this lesser known ganglion in disguise, located atypically in the posterior femoral intercondylar region, which was excised alongwith adjoining periosteum and confirmed histopathologically to be benign ganglionic cyst.…”

Tibial periosteal ganglion cyst: The ganglion in disguise

“…[5] They present with swelling and mild tenderness and occasional derangement of knees, if the joint is involved. Ganglions may be associated with major vessels in 10–20% cases, and may occasionally bleed into the ganglion spontaneously, in which case it becomes hot, red, and painful.…”

“…These include nodular pretibial myxedema, subcutaneous sarcoidosis, subperiosteal abscess or hematoma, parosteal lipoma, periosteal aneurysmal bone cyst, or chondroma. [5]…”