1/14. Diaphragmatic haemangioma. A case report.The case of a 4-year-old patient with a diaphragmatic haemangioma is reported. There were no symptoms and the only clinical finding was prominent subcutaneous vessels on the abdominal wall. The lesion was revealed by imaging and was excised. The findings and the differential diagnosis are discussed.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
2/14. Sarcoma metastases due to iatrogenic implantation.AIM: To demonstrate the ability of extremity soft tissue sarcomas (STSs) to implant into tissues exposed during surgery. methods: We use two cases to illustrate that wounds created during surgery for STSs, including donor sites for skin grafts, pedicled and free flaps and blood vessels used in reconstruction, should be regarded as potential sites of quasi-local recurrence. CONCLUSIONS: This report reinforces the need for meticulous surgical technique and planning of procedures to avoid contamination of clean areas that might not be included in adjuvant radiotherapy fields. The cases also highlight the pivotal importance of the correct initial management of these uncommon tumours.- - - - - - - - - - ranking = 19.475321871955keywords = blood vessel, vessel (Clic here for more details about this article) |
3/14. Intramuscular haemangioma of the anterior chest wall.Intramuscular haemangiomas of the chest wall are rare. We present the case of a 33-year-old man with an intramuscular haemangioma of the left side of the anterior chest wall located in the left sixth intercostal space. We resected the tumour and surrounding tissue. Histopathological examination of the tumour demonstrated an intramuscular haemangioma of small-vessel type. The patient has been free of recurrence for 5 years after surgery.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
4/14. A case of intramuscular hemangioma of the back.Intramuscular hemangioma is an uncommon tumor that usually involves an extremity. They rarely occur after the age of 30. We report a case of an intramuscular hemangioma occurring on the back of a 39-year-old man. Histopathologically, the tumor consisted mainly of large vessels between the muscle fibers. Phleboliths were observed in some of the vessel walls.- - - - - - - - - - ranking = 2keywords = vessel (Clic here for more details about this article) |
5/14. Distinction of well-differentiated liposarcoma from lipoma in two patients with multiple well-differentiated fatty masses.This case report describes the features of gadolinium-enhanced MRI in well-differentiated liposarcoma with histologic correlation and addresses the usefulness of this imaging technique in distinguishing well-differentiated liposarcoma from lipoma. gadolinium-enhanced MRI revealed significantly enhanced signal in well-differentiated liposarcoma in a background of multiple well-differentiated benign fatty masses by showing the increased vascularity in the septa of well-differentiated liposarcoma. Although such signal enhancement can be seen in some types of benign lipomatous tumors with increased blood vessels, this technique is helpful in selection of biopsy site, especially in a clinical setting of multiple fatty masses.- - - - - - - - - - ranking = 19.475321871955keywords = blood vessel, vessel (Clic here for more details about this article) |
6/14. thoracic duct cyst presenting as an hour-glass shaped mass in the left supraclavicular area: case report.thoracic duct cyst presenting as an hour-glass shaped mass in the left supraclavicular area: case report. thoracic duct cysts are a very rare entity in the head and neck pathology. We present a case of a 52 year-old man, who was referred to our service, complaining by a 30 days left cervical mass, with no other symptoms. A 6 cm cystic mass was revealed after ultrasonography and CT. Needle aspiration confirmed the presence of lymph in the cyst. The treatment was simple excision. Special care was taken to ligate the connected lymphatic vessels.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
7/14. Malignant glomus tumor in the branchial muscle of a 16-year-old girl.Malignant glomus tumor is an extremely rare neoplasm and its histological features are not well characterized. We report a 16-year-old female patient with a malignant glomus tumor. The patient was admitted to our hospital presenting with a mass in the right upper arm that she had noticed for the previous 6 months. Computed tomography and magnetic resonance imaging revealed an expanded mass involving the surrounding tissues. At surgery, an ill-defined and expanded mass was found, 5 x 4 x 3 cm in size, in the right branchial muscle. The tumor was extirpated, along with neighboring muscle tissues. Histologically, tumor cells were round to short-spindle shaped, forming solid sheets admixed with vessels of varying size. Their nuclei were uniformly oval to round, and their cytoplasms were slightly eosinophilic. The growth pattern of the tumor cells resembled that of glomus tumor, but mitotic figures were frequent (as high as 10 per 10 high-power fields). Immunohistochemically, the tumor cells were positive for vimentin and muscle actin, but negative for desmin. There were no areas typical of benign glomus tumor or sarcomatous change. These findings led us to a diagnosis of primary malignant glomus tumor arising de novo. There has been no recurrence or metastasis for 21 months after wide excision.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
8/14. Intramuscular hemangiomas of extraocular muscles.PURPOSE: To report two patients, 3 and 40 years of age, respectively, each of whom had an isolated intramuscular hemangioma of an extraocular muscle. DESIGN: Two retrospective, interventional case reports. INTERVENTION: Incisional biopsy and short-term oral corticosteroids. MAIN OUTCOME MEASURES: Clinical observation and pathologic examination of specimens and tumor status, visual acuity, and ocular motility at final follow-up. RESULTS: Orbital magnetic resonance imaging revealed that, compared with other extraocular muscles, the tumor was isointense on T1-weighted scans and hyperintense on T2-weighted images. Marked homogeneous enhancement was observed after contrast agent administration. biopsy results showed a hemangioma of the lateral rectus muscle with predominantly capillary-like small vessels in the child and a mixed small and large vessel type hemangioma of the medial rectus muscle in the adult. CONCLUSIONS: Intramuscular hemangiomas may cause painless, isolated extraocular muscle enlargement in children and in adults without disturbing the ocular motility. The tumors do not seem to be sensitive to systemic corticosteroid therapy.- - - - - - - - - - ranking = 2keywords = vessel (Clic here for more details about this article) |
9/14. Cutaneous clear cell myomelanocytic tumour: a new member of the growing family of perivascular epithelioid cell tumours (PEComas). Clinicopathological and immunohistochemical analysis of seven cases.AIMS: To analyse seven cases of cutaneous myomelanocytic tumour histologically and immunohistochemically. Perivascular epithelioid cell tumours (so-called PEComas) are rare and recently delineated neoplasms occurring in the lung, kidney, pancreas, uterus, falciform ligament, vulva, heart, prostate and soft tissues. PEComas are characterized by a perivascular location of neoplastic cells showing a broad spectrum of epithelioid and spindled cells with clear, and granular pale eosinophilic cytoplasm, and a variable expression of melanocytic and muscle markers, whereas S100 protein and cytokeratins are usually absent. methods AND RESULTS: We report seven cases of cutaneous myomelanocytic tumour arising on the lower (six cases) and upper (one case) extremities of female adults (age range 30-66 years). In all cases an ill-defined dermal lesion with extension into subcutaneous tissue was noted. The neoplasms contained numerous blood vessels with a lace-like pattern and slightly thickened vessel walls, and were composed of perivascular epithelioid cells containing clear or focally granular pale eosinophilic cytoplasm and round vesicular nuclei with small, sometimes slightly enlarged nucleoli. Increased proliferative activity and tumour necrosis were not seen. Immunohistochemically, tumour cells stained positively for HMB-45, microphthalmia transcription factor, and NKIC3 in all cases, whereas perivascular expression of alpha-smooth muscle actin and focal positivity for desmin were noted in one case each only. Two out of four cases tested stained focally positive for calponin. No expression of S100 protein and pancytokeratin was present. Despite incomplete/marginal excision in three cases none of the neoplasms has recurred locally so far. CONCLUSIONS: With the presented series of cutaneous myomelanocytic tumours the clinicopathological spectrum of PEComas is expanded.- - - - - - - - - - ranking = 20.475321871955keywords = blood vessel, vessel (Clic here for more details about this article) |
10/14. Smooth muscle neoplasm presenting as intrapericardial myxoma.This report describes the echocardiographic appearance of an intrapericardial mass and pericardial effusion in an otherwise healthy patient. The tumor was a globular mass attached to the left atrium by a stalk, suggestive of a myxoma. The mass was successfully excised and the patient had an uneventful recovery. histology revealed a smooth muscle tumor with extensive adipocytic differentiation and numerous small blood vessels. This study represents the first echocardiographic description of a smooth muscle tumor presenting as an extracardiac myxoma.- - - - - - - - - - ranking = 19.475321871955keywords = blood vessel, vessel (Clic here for more details about this article) |
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