1/180. Papillary endothelial hyperplasia presenting as a chest wall neoplasm.Soft tissue hematomas generally resolve but may persist and develop into slow-growing, organized masses. These chronic expanding hematomas are characterized by a pseudocapsule and a predominantly necrotic central cavity, with foci of newly formed capillaries. These have been called chronic expanding hematomas or Masson's papillary endothelial hyperplasia. These lesions can mimic vascular neoplasms and must be considered in the evaluation of expanding soft tissue vascular malformations.- - - - - - - - - - ranking = 1keywords = neoplasm (Clic here for more details about this article) |
2/180. The radiological findings in chronic expanding hematoma.OBJECTIVE: To identify the characteristic MRI findings of chronic expanding hematoma correlated with the pathology. DESIGN AND patients: Three patients who had a chronic expanding hematoma involving the musculoskeletal system were reviewed retrospectively. RESULTS AND CONCLUSION: Huge soft tissue masses suggestive of malignancy with destruction of the bony structure were revealed on radiography and computed tomography. MRI showed the masses to exhibit heterogeneous signal intensity on both T1 and T2-weighted images with a peripheral rim of low signal intensity, reflecting the central zones of fluid collection due to fresh and altered blood with a wall of collagenous fibrous tissue. These MRI findings were seen in all three patients and are considered to be characteristic; they assist in differentiation from neoplasm in consideration of the history of trauma or surgery.- - - - - - - - - - ranking = 0.2keywords = neoplasm (Clic here for more details about this article) |
3/180. Spontaneous hematoma of the rectus abdominis sheath: a review of 177 cases with report of 7 personal cases.hematoma of the rectus abdominis muscle sheath is a little known and rarely diagnosed condition, in spite of its definite clinical setting and treatment. It is very important to the surgeon, as it may be mistaken frequently for acute inflammatory abdominal conditions and should be considered in the differential diagnosis of intra-abdominal tumors. The literature on 177 cases of non-traumatic hematomas of the rectus abdominis muscle sheath is reviewed, including seven personal cases reported by the authors. Its epidemiology, pathogenesis, clinical features, diagnostic examinations and treatment are discussed.- - - - - - - - - - ranking = 4.8776850384789keywords = muscle (Clic here for more details about this article) |
4/180. Superficial femoral artery branch avulsion after severe muscle cramping.Avulsion of a muscular branch of a major artery without a history of major trauma has not been reported to our knowledge. Occasionally, blunt and even minor trauma can result in injuries that seem out of proportion to the level of injury. We report a case of an avulsed muscular branch of the superficial femoral artery in a patient with recent thigh cramping. This injury is likely related to the intense tetany the patient described having before he came to the hospital.- - - - - - - - - - ranking = 9.7553700769579keywords = muscle (Clic here for more details about this article) |
5/180. Epithelioid variant of malignant peripheral nerve sheath tumor (malignant schwannoma) of the urinary bladder.sarcoma represents less than 2% of all neoplasms diagnosed or recognized in effusions. Epithelioid peripheral nerve sheath tumor is a rare tumor that is difficult to differentiate from other epithelioid tumors without the use of ancillary studies. A 39-year-old paraplegic man presented with hematuria and a bladder mass that extended to involve the pelvic peritoneum. light microscopy using hematoxylin-eosin, Papanicolaou, and immunohistochemical stains as well as transmission electron microscopy showed features of epithelioid malignant peripheral nerve sheath tumor with rhabdoid features and an accompanying eosinophilic infiltrate. Cytologic smears confirmed the similarities between the primary tumor in the bladder and the cells in the pelvic fluid and excluded the possibility of reactive changes related to postsurgical radiation. Ancillary studies were critical in narrowing the differential diagnoses and reaching the final conclusion.- - - - - - - - - - ranking = 0.2keywords = neoplasm (Clic here for more details about this article) |
6/180. F-18 FDG uptake in breast infection and inflammation.PURPOSE: Whole-body fluorine-18 fluorodeoxyglucose (F-18 FDG) positron emission tomography (PET) scanning has been useful in the management of breast cancer. However, F-18 FDG uptake sometimes has been associated with benign breast disease. Four cases are reported of F-18 FDG breast uptake caused by infectious or inflammatory mastitis that mimics malignant disease. methods AND RESULTS: Two women had F-18 FDG whole-body scans for the evaluation of a large breast mass after inconclusive results of ultrasonography. In both cases, intense focal F-18 FDG breast uptake was noted that mimicked breast cancer. Histologic examination showed, in one patient, chronic granulomatous infiltration that likely represented tuberculous mastitis, because she showed a good clinical response to empirical anti-tuberculous treatment. The second patient had lactational changes associated with acute inflammation, and the culture grew staphylococcus aureus. The breast mass completely disappeared 3 weeks after a course of antibiotic treatment. The other two patients had staging F-18 FDG PET scans 1 and 12 months after lumpectomy for breast carcinoma to detect residual, recurrent, or metastatic disease. Both scans showed a ring-like uptake in the involved breast, with superimposed intense focal uptake suggesting tumor necrosis centrally and malignant foci peripherally. In both cases, histologic examination revealed hemorrhagic inflammation secondary to postsurgical hematomas and no evidence of malignancy. CONCLUSION: Acute or chronic infectious mastitis and postsurgical hemorrhagic inflammatory mastitis should be considered in patients who have a breast mass, especially those with a history of tenderness or surgery.- - - - - - - - - - ranking = 0.13756295269353keywords = cancer (Clic here for more details about this article) |
7/180. Gastric pseudotumor.The authors present a case report of a pseudotumor of the stomach and a brief discussion about this very unusual entity. A 75-year-old female patient was admitted with melena and a large epigastric tumor; she underwent upper gastrointestinal endoscopy, abdominal ultrasound, magnetic resonance imaging, guided needle aspiration and angiography. Preoperative diagnostic hypothesis included a partially thrombosed aneurysm of the splenic artery, pancreatic cystic neoplasm with gastric invasion and pancreatic pseudocyst complicated with hemorrhage. laparotomy revealed a gastric tumor and the patient was submitted to a radical subtotal Billroth II gastrectomy. Only the pathologic examination revealed the unexpected definitive diagnosis of an organized intramural gastric hematoma. There were no postoperative complications and she remains asymptomatic 10 months after surgery.- - - - - - - - - - ranking = 0.2keywords = neoplasm (Clic here for more details about this article) |
8/180. Acute ulnar nerve compression syndrome in a powerlifter with triceps tendon rupture--a case report.We report on the case of a bodybuilder and powerlifter who suffered from triceps tendon rupture complicated by acute ulnar nerve compression syndrome. The diagnosis was made clinically, radiologically, and sonographically. Ultrasound was helpful to demonstrate a large hematoma at the site of the injury. Early surgical intervention confirmed the presence of the hematoma compressing the ulnar nerve and led to a complete restoration of ulnar nerve and triceps muscle function. Few reports on distal triceps rupture have been published but its complication by acute ulnar nerve compression has not been reported on yet despite the close anatomical relationship of both structures.- - - - - - - - - - ranking = 2.4388425192395keywords = muscle (Clic here for more details about this article) |
9/180. hemobilia, intrahepatic hematoma and acute thrombosis with cavernomatous transformation of the portal vein after percutaneous thermoablation of a liver metastasis.A 53-year-old-man underwent US-guided percutaneous thermal ablation with a cooled-tip needle of three liver metastases from gastric cancer. Six days later, the patient was re-admitted for melena, scleral jaundice, and anemia. Abdominal US disclosed echogenic material in the gallbladder lumen (hemobilia) and a focal lesion with mixed echotexture in segment III (hepatic hematoma). On day 5 portal cavernomatosis was diagnosed at US and confirmed by color Doppler and a helical CT exam. The case described emphasizes that radio-frequency interstitial hyperthermia may cause not only traumatic injury of the liver parenchyma but also thermally mediated damage of vascular structures.- - - - - - - - - - ranking = 0.068781476346763keywords = cancer (Clic here for more details about this article) |
10/180. Gray scale ultrasound: evaluation of iliopsoas hematomas in hemophiliacs.Because of its insidious nature, intramuscular bleeding, in contrast to hemarthrosis, is missed or belatedly recognized in hemophiliacs. Sixteen patients with suspected iliopsoas bleeding were studied by gray scale ultrasonography. In 12 patients it was possible to confirm the diagnosis of iliopsoas hematoma because of enlargement and rounding of the psoas muscle.- - - - - - - - - - ranking = 2.4388425192395keywords = muscle (Clic here for more details about this article) |
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