Accurate staging is the fundamental basis for the treatment and prognosis of non-small cell lung cancer (NSCLC), and whether the tumor involves the pleura or chest wall is a critical aspect in assessing the staging of peripheral lung cancer. Imaging techniques such as computed tomography (CT), magnetic resonance imaging (MRI), ultrasound (US) and positron emission tomography (PET) are widely used to determine pleural invasion in NSCLC. There has been an increasing number of studies evaluating whether NSCLC invades the pleura and the extent of such invasion. This article provides a review of the staging and the imaging diagnostic criteria of pleural invasion, aiming to offer references for peers in the precise diagnosis of pleural or chest wall invasion.
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Humans ; Carcinoma, Non-Small-Cell Lung/diagnosis* ; Lung Neoplasms/diagnosis* ; Thoracic Wall/diagnostic imaging* ; Pleura/diagnostic imaging* ; Neoplasm Invasiveness ; Tomography, X-Ray Computed

Multiple extramedullary (soft tissue) plasmacytoma is a rare neoplasm of plasma cells. This is a case of a 63-year-old male who presented with back pain and a one month history of a painful, progressively growing mass at the right anterior chest wall. Since radiographs and computed tomography of the chest showed lytic lesions on the ribs and L4 compression deformity, the patient was referred for whole body bone scintigraphy to evaluate the remainder of the skeleton. Bone scintigraphy revealed osteoblastic lesions and osteolytic lesions in the thoracic cage. Diagnosis of plasmacytoma was established by biopsy and confirmation of microscopic characteristics and immunohistochemical staining.

Human ; Male ; Middle Aged ; Neoplasms ; Neoplasms By Histologic Type ; Neoplasms, Plasma Cell ; Radionuclide Imaging ; Diagnosis ; Diagnostic Techniques And Procedures ; Diagnostic Imaging ; Back Pain ; Biopsy ; Bone Diseases ; Plasma Cells ; Plasmacytoma ; Thoracic Wall ; Tomography ; Whole Body Imaging

OBJECTIVETo investigate the effect of the rib cage on the vertebral axial rotation of adolescent idiopathic scoliosis under axial load condition.

METHODSThree dimensional finite element model of adolescent idiopathic scoliosis included and excluded thoracic cage was built based on the data of computer tomography. The model was imported into the preprocessor of the ANSYS 8.0 software for assigning boundary and loading conditions. Then the axial loading condition was simulated after entering the solution modular. The magnitude and direction of each vertebral axial rotation of the scoliotic spine were read and analyzed in the postprocessor of the ANSYS software.

RESULTSThe rib cage had a significant influence on the axial rotation of the vertebra above the structural curve and had no influence on the axial rotation of the lumbar and sacral vertebra. The effect of the thoracic cage on the axial rotation of the apical vertebra was limited. Under different loading conditions, the apical vertebra of both models rotated in the same direction. The magnitude of the vertebral rotation of both models has no statistical significance.

CONCLUSIONSAdolescent idiopathic scoliosis can lead to the anatomical changes of the vertebra and the thoracic cage. The corresponding changes of biomechanical features of the scoliotic spine and rib cage would occur. The deformed thoracic cage could not maintain the rotation stability as the normal one.

Adolescent ; Biomechanical Phenomena ; Finite Element Analysis ; Humans ; Male ; Ribs ; diagnostic imaging ; pathology ; Rotation ; Scoliosis ; diagnostic imaging ; pathology ; Spine ; diagnostic imaging ; pathology ; Thoracic Wall ; diagnostic imaging ; pathology ; Tomography, X-Ray Computed

Prevotella bivia is associated with pelvic inflammatory disease. A 77-year-old man developed a rapidly growing chest wall abscess due to P. bivia within days. He underwent surgical resection of the infected area; his postoperative course was uneventful. This is the first case of chest wall abscess due to P. bivia infection. Its correct diagnosis cannot be underestimated because fulminant infections can occur in aged or immunocompromised patients if treated incorrectly. Prompt, appropriate surgical management, and antibiotic therapy affect treatment outcome.
Abscess ; diagnostic imaging ; microbiology ; pathology ; surgery ; Aged ; Bacteroidaceae Infections ; diagnostic imaging ; microbiology ; pathology ; surgery ; Humans ; Male ; Prevotella ; isolation & purification ; physiology ; Thoracic Diseases ; diagnostic imaging ; microbiology ; pathology ; surgery ; Thoracic Wall ; microbiology ; pathology ; surgery ; Tomography, X-Ray Computed