BACKGROUND Muscle functional magnetic resonance imaging (mfMRI) measures transverse relaxation time (T2), and allows for determination of the spatial pattern of muscle activation. The purposes of this pilot study were to examine whether MRI-derived T2 or side-to-side differences in T2 (asymmetries) differ in low back muscles between subjects with acute low back pain (LBP) compared to asymptomat...

Psoas abscess is a rare infectious disease with nonspecific clinical presentation that frequently causes a diagnostic difficulty. Its insidious onset and occult characteristics can cause diagnostic delays. It is classified as primary or secondary. Staphylococcus aureus is the most commonly causative pathogen in primary psoas abscess. Secondary psoas abscess usually occurs as a result of underly...

We report a newborn infant with psoas abscess caused by methicillin-sensitive Staphylococcus aureus. He was referred to our hospital with a history of hospital admission for hip septic arthritis without clinical improvement, and presented limited left hip motion, swelling on the groin and pain. A magnetic resonance imaging study revealed an abscess of the left psoas muscle. Surgical drainage an...

Leg pain from lumbar disc herniation is a common presentation. However, certain muscular and peripheral nerve variants may present similarly and represent an unrecognized etiology of femoral nerve dysfunction. Such cases might affect the outcome of specific treatment regimes. Therefore, recognition of these variations in anatomy may be useful to the clinician when treating the patient with medi...

ENWEndNote BIBJabRef, Mendeley RISPapers, Reference Manager, RefWorks, Zotero AMA Pecorella I, Ferrari A, Tornese Lai Q, Mennini G, Rossi M. Primary anaplastic large T-cell lymphoma of the psoas muscle. Polish Journal Pathology. 2021;72(1):89-96. doi:10.5114/pjp.2021.106448. APA Pecorella, I., Ferrari, A., Tornese, Lai, Q., Mennini, G., & Rossi, (2021). Pathology, 72(1), 89-96. https://doi.org/...

A new form of skeletal-muscle C-protein has been isolated from rabbit soleus (red) muscle. This new form of C-protein has been purified to homogeneity by a procedure similar to that used to purify C-protein from white skeletal muscle. In soleus muscle, only this new form of C-protein could be detected, whereas in psoas (white) muscle, only the previously identified form of C-protein was detecte...