المقالات و المحاضرات العلمية‬ Pseudo-neoplatic masses/Pseudo-tumors in MSK
Pseudo-neoplatic masses/Pseudo-tumors in MSK

Pseudo-neoplatic masses/Pseudo-tumors in MSK


"Do not touch lesions"



The radiologic evaluation of tumors in bones & soft tissues should include a consideration of non-neoplastic masses might simulate tumors .



Recognition of these pseudo-tumors might prevent un-necessory diagnostic or invasive procedures & treatment [ surgical excion ] supposed only to be performed after confirmation .



 Not only biopsy result in morbidity and cost , but biopsy reading might also be misleading & lead to unnecessary surgery as in Stress # , Avulsion injury or myositis ossificans or FCD easily diagnosed diagnosed radiologically . Avoid biopsy "Do not touch lesions"



The differentiation between neoplasm s & pseudo-tumors will depend upon good scientific knowledge, experience as well as awareness of the conditions .



A general review of conditions that may simulate a tumor in radiographs or imaging s of skeleton, or soft tissue is are to be presented .



Classification of Pseudo-tumors in MSK as follows:



  • Artefacts on the cassette , from processing ,or on the skin i.e not inside the body ; as hair knot or any metal .


  • Normal variant as hemivertebra , bipartite patella , normal cortical notch in the medial aspect of humeral neck . Dorsal Defect of the Patella ,Pseudocyst of the humerus .


  • Trauma mimic tumor :Certain fractures, Stress # ,Avulsion injury & myositis ossificans.


  • Pseudo- neoplatic areas/ sclerosis defects as in bone islands ,certain calcified or ossified cartilages, Burr hole or Radiation defects. Discogenic Vertebral Sclerosis.


  • Real masses but definitely benign as [FCD] of the bone. Hemophilia lesion esp.intaosseous ,Brown tumors in HPT.


  • Bone infarct.


Avoid biopsy "Do not touch lesions” .

N.B The vast majority of the following cases are from our clinical practice or referred to us for a 2nd opinion[ Unfortunately some after operation].



Dr. Ziad Suwan FRCR (Sen. Consultant Radiologist) Amman ,Jordan.



الدكتور زياد صوان

مستشاراول الاشعة التشخيصية Pearls&pitfall in nonenhanced Ct

محاضر الاجتماعات الشهرية
02/01/2012