JUM
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Google Scholar
Right arrow Articles by Jin, W.
Right arrow Articles by Park, J. S.
PubMed
Right arrow PubMed Citation
Right arrow Articles by Jin, W.
Right arrow Articles by Park, J. S.
© 2008 by the American Institute of Ultrasound in Medicine
J Ultrasound Med 27:171-176 • 0278-4297

Sonographic Findings of Ruptured Epidermal Inclusion Cysts in Superficial Soft Tissue

Emphasis on Shapes, Pericystic Changes, and Pericystic Vascularity

Wook Jin, MD, Kyung Nam Ryu, MD, Gou Young Kim, MD, Hyun Cheol Kim, MD, Jae Hoon Lee, MD and Ji Seon Park, MD

Departments of Radiology (W.J., H.C.K.), Pathology (G.Y.K.), and Orthopedic Surgery (J.H.L.), East-West Neo Medical Center, and Department of Diagnostic Radiology, Kyung Hee University Medical Center (K.N.R., J.S.P.), College of Medicine, Kyung Hee University, Seoul, Korea.

Address correspondence to Wook Jin, MD, Department of Radiology, East-West Neo Medical Center, 149 Sangil-dong, Kangdong-gu, Seoul 134–090, Korea., E-mail: jinooki{at}hitel.net

Objective. The purpose of this study was to retrospectively evaluate the sonographic findings of ruptured epidermal inclusion cysts in superficial soft tissue, with an emphasis on shapes, pericystic changes, and pericystic vascularity. Methods. The cases of 61 patients with surgically confirmed epidermal inclusion cysts were reviewed, and 13 patients were found to have ruptured cysts. The Ethics Committees of our institutions did not require patient approval or informed patient consent for this retrospective study. We evaluated the shapes, sizes, locations, pericystic changes, and pericystic vascularity for the 13 cases. Results. The shapes of the ruptured epidermal inclusion cysts were classified into 3 types: with lobulations (type I, 2 cases), with protrusions (type II, 8 cases), and with abscess pocket formations (type III, 3 cases). The mean long diameter of the cysts was 3 cm. Common sites of ruptured epidermal inclusion cysts were the plantar surface of the metatarsophalangeal joint (4 cases) and buttocks (3 cases). Pericystic changes were noted in all of the type II and III cysts. Increased vascularity on color Doppler sonography was prominent in 3 type II cysts and 3 type III cysts. Deep abscess formation was noted in the epidermal inclusion cysts, especially for the type III cysts. Conclusions. A ruptured epidermal inclusion cyst visualized by sonography had variable shapes; the sonographic findings can be useful for obtaining a correct diagnosis of a ruptured epidermal inclusion cyst.

Key Words: epidermal inclusion cyst • soft tissue • sonography

HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2008 by the American Institute of Ultrasound in Medicine.