Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 21
Filter
2.
Acta ortop. mex ; 28(4): 244-247, jul.-ago. 2014. ilus
Article in Spanish | LILACS | ID: lil-730347

ABSTRACT

El mixoma intramuscular es un raro tumor benigno de tejidos blandos, de origen mesenquimal, que se presenta como masa de crecimiento lento, indolora, habitualmente en el muslo. El diagnóstico histológico es necesario antes de la resección, siendo la exéresis su tratamiento. No existen casos de malignización y su recurrencia se debe a resección incompleta. Presentamos tres casos de mixoma intramuscular tratados en nuestro centro entre los años 2004 y 2011. De este modo aprovechamos para realizar una revisión de la presentación clínica, diagnóstico, tratamiento y resultados funcionales de los mismos. En todos los casos se llevó a cabo el mismo protocolo diagnóstico y terapéutico, comenzando con la exploración física del paciente y realizando una ecografía y RMN como pruebas complementarias. Posteriormente una biopsia incisional del tumor para estudio anatomopatológico y finalmente la exéresis íntegra.


Intramuscular myxoma is a rare soft tissue benign tumor, arising from the mesenchyma; it presents as a slow-growing painless mass located usually in the thigh. Histologic diagnosis is necessary before resection and treatment consists of exeresis. There are no cases of malignization and recurrence results from incomplete resection. We report herein three cases of intramuscular myxoma treated at our center from 2004 to 2011. At the same time, we conducted a review of the clinical presentation, diagnosis, treatment and functional results. The same diagnostic and therapeutic protocol was used in all cases. It began with the patient’s physical exam, and ultrasound and MRI as complementary tests. An incisional biopsy of the tumor was taken for anatomopathological studies and, finally, complete exeresis was performed.


Subject(s)
Adult , Female , Humans , Male , Middle Aged , Muscle Neoplasms , Myxoma , Muscle Neoplasms/diagnosis , Muscle Neoplasms/surgery , Myxoma/diagnosis , Myxoma/surgery
3.
Säo Paulo med. j ; 132(1): 65-67, 2014. tab, graf
Article in English | LILACS | ID: lil-699297

ABSTRACT

CONTEXT: Intramuscular lipomas are benign tumors that infiltrate the muscles. CASE REPORT: We describe the case of a 58-year-old female patient with an axillary lump. The lump was a lipoma inside the subscapularis muscle. It is important to differentiate these lesions from liposarcomas and from other diseases that may present as axillary lumps. The most accurate imaging method for differentiating benign lipomatous tumors from liposarcomas is magnetic resonance imaging, but surgical removal of these intramuscular lesions to confirm the diagnosis is recommended. CONCLUSION: Intramuscular lipomas are a rare cause of benign axillary lumps and should be considered in making differential diagnoses on axillary masses. .


CONTEXTO: Lipomas intramusculares são tumores benignos que infiltram os músculos. RELATO DE CASO: Descrevemos o caso de uma paciente de 58 anos com nódulo axilar. O nódulo era um lipoma na intimidade do músculo subescapular. É importante diferenciar essas lesões de lipossarcomas e outras doenças que podem acometer a axila. O método de imagem mais eficaz para diferenciar lesão lipomatosa benigna do lipossarcoma é a ressonância magnética, mas é recomendada a remoção cirúrgica dessas lesões intramusculares para confirmar o diagnóstico. CONCLUSÃO: Lipomas intramusculares são causas raras de nódulos axilares benignos e devem ser considerados no diagnóstico diferencial dessas lesões. .


Subject(s)
Female , Humans , Middle Aged , Axilla/pathology , Lipoma/diagnosis , Muscle Neoplasms/diagnosis , Diagnosis, Differential , Liposarcoma/diagnosis , Magnetic Resonance Imaging
5.
Article in English | IMSEAR | ID: sea-140158

ABSTRACT

Deep lipomas, especially in the head and neck region, are uncommon. This report describes the case of a patient with a large intermuscular lipoma of the submandibular space, which had been present for 10 years and was diagnosed by computed tomography. The clinical, imaging, and histopathological features, as well as the management of the tumor, are described.


Subject(s)
Adipocytes/pathology , Biopsy, Fine-Needle , Follow-Up Studies , Humans , Lipoma/diagnosis , Male , Middle Aged , Muscle Neoplasms/diagnosis , Neck Muscles/pathology , Tomography, X-Ray Computed
6.
Indian J Ophthalmol ; 2011 Sept; 59(5): 381-382
Article in English | IMSEAR | ID: sea-136210

ABSTRACT

We report a rare presentation of an initially misdiagnosed case of a pseudotumor, which on histopathology was diagnosed as bilateral breast metastases of lobular carcinoma involving multiple extraocular muscles. A 61-year-old lady presented with external ophthalmoplegia and diplopia. Incisional biopsy was performed using a lid crease approach and the patient received radiotherapy and hormonal therapy. Following prolonged hormonal therapy, complete remission was achieved, with improvement in ocular motility and resolution of diplopia, about 18 months after the initial presentation. Multiple extraocular muscle involvement by breast carcinoma metastasis is very rare and should be considered in the differential diagnosis, especially in patients with a prior history of breast carcinoma.


Subject(s)
Biopsy , Breast Neoplasms/pathology , Breast Neoplasms/therapy , Carcinoma, Lobular/diagnosis , Carcinoma, Lobular/secondary , Carcinoma, Lobular/therapy , Combined Modality Therapy , Diagnosis, Differential , Eye Neoplasms/diagnosis , Eye Neoplasms/secondary , Eye Neoplasms/therapy , Female , Follow-Up Studies , Humans , Magnetic Resonance Imaging , Middle Aged , Muscle Neoplasms/diagnosis , Muscle Neoplasms/secondary , Muscle Neoplasms/therapy , Neoplasm Staging , Oculomotor Muscles , Time Factors
7.
Article in English | WPRIM | ID: wpr-73323

ABSTRACT

Tumor-mimicking lesions in the musculoskeletal system can be defined as lesions mistaken as tumors due to the presence of palpation upon physical examination or a tumor-like appearance upon radiological examination. Moreover, tumor-mimicking lesions show diverse etiologies and anatomic locations. We illustrated the various tumor-mimicking lesions involving bone and soft tissue. In this review, the tumor-mimicking lesions were classified into those based on clinical examination and those based on radiological examination in musculoskeletal radiology. Awareness of the various causes of tumor-mimicking lesions, correctly obtaining clinical information, and the proper selection of imaging modality are important for the differentiation of tumor-mimicking lesions from true neoplasms.


Subject(s)
Bone Neoplasms/diagnosis , Diagnosis, Differential , Diagnostic Imaging , Humans , Muscle Neoplasms/diagnosis , Musculoskeletal Diseases/diagnosis , Physical Examination , Soft Tissue Neoplasms/diagnosis
8.
Article in English | WPRIM | ID: wpr-152364

ABSTRACT

Malignant mesothelioma (MM) is a relatively rare carcinoma of the mesothelial cells, and it is usually located in the pleural or peritoneal cavity. Here we report on a unique case of MM that developed in the chest, abdominal and pelvic walls in a 77-year-old female patient. CT and MRI revealed mesothelioma that manifested as a giant mass in the right flank and bilateral pelvic walls. The diagnosis was confirmed by the pathology and immunohistochemistry. Though rare, accurate investigation of the radiological features of a body wall MM may help make an exact diagnosis.


Subject(s)
Abdominal Neoplasms/diagnosis , Abdominal Wall , Aged , Female , Humans , Magnetic Resonance Imaging , Mesothelioma/diagnosis , Muscle Neoplasms/diagnosis , Pelvic Neoplasms/diagnosis , Thoracic Neoplasms/diagnosis , Tomography, X-Ray Computed
9.
Indian J Cancer ; 2010 Jul-Sept; 47(3): 280-286
Article in English | IMSEAR | ID: sea-144351

ABSTRACT

Aims: Various features have been described in the literature to differentiate benign from malignant lesions. The aim of the present study was to study the accuracy of each of these features and that of magnetic resonance imaging (MRI) in diagnosing malignant lesions. Materials and Methods: Fifty-five consecutive patients presenting with neoplastic (both benign and malignant) lesions diagnosed clinically and on ultrasound were studied and their MRI features were compared with the findings on surgical exploration and histopathologic examination. Results: There were 32 (58%) benign and 23 (42%) malignant masses. Malignant masses were more common in patients older than 20 years (83%), and these had symptoms of less than 6 months duration (75%), as against benign lesions. The swelling was painful in 8 malignant masses and these were more common in the upper limbs (61%). Various features of malignant lesions were size more than 5 cm in 83%, change in signal intensity from homogenous on T1-weighted images to heterogenous on T2-weighted images in 74%, irregular margins in 74%, and heterogenous contrast enhancement in 91%. The accuracy of these features was 76%, 58%, 78%, and 60%, respectively. Most benign and malignant lesions were intramuscular in location. A significant number (38%) of benign lesions were located in the intermuscular facial plane. Definitive diagnosis was made in 42% of the lesions. Conclusions: MRI is an excellent modality for evaluating soft tissue neoplasms; however, prediction of a specific diagnosis and differentiation of malignant and benign lesions is not always possible.


Subject(s)
Diagnosis, Differential , Feasibility Studies , Female , Histiocytoma, Malignant Fibrous/diagnosis , Histiocytoma, Malignant Fibrous/pathology , Histiocytoma, Malignant Fibrous/physiopathology , Histiocytoma, Malignant Fibrous/diagnostic imaging , Humans , Magnetic Resonance Imaging/methods , Male , Muscle Neoplasms/diagnosis , Muscle Neoplasms/pathology , Muscle Neoplasms/physiopathology , Muscle Neoplasms/diagnostic imaging , Predictive Value of Tests , Prognosis , Sensitivity and Specificity , Soft Tissue Neoplasms/diagnosis , Soft Tissue Neoplasms/pathology , Soft Tissue Neoplasms/physiopathology , Soft Tissue Neoplasms/diagnostic imaging
10.
Article in English | WPRIM | ID: wpr-100721

ABSTRACT

Intrahepatic cholangiocarcinoma is a rare malignancy that originates from the epithelial cells of the intrahepatic bile ducts. Intrahepatic cholangiocarcinoma can metastasize in lymphatic chains, including the hepatoduodenal ligament, and it often invades adjacent organs or metastasizes to other visceral organs such as the lungs, bones, adrenal glands, and brain. However, distant skeletal muscle metastasis is very rare. Moreover, a metastatic skeletal muscle tumor rarely shows specific symptoms, making it difficult to identify in a routine examination. A 45-year-old man with a chief complaint of right upper quadrant abdominal pain was admitted to our hospital. Abdominal ultrasound and computed tomography with contrast enhancement showed a malignant mass in the right hepatic lobe, and 2-[18F] fluoro-2-deoxy-D-glucose positron-emission tomography revealed distant skeletal muscle metastases in the thorax and buttock. The patient underwent an ultrasound-guided percutaneous needle biopsy for the metastatic low-echo masses in the skeletal muscle.


Subject(s)
Bile Duct Neoplasms/diagnosis , Cholangiocarcinoma/diagnosis , Fluorodeoxyglucose F18 , Humans , Liver Neoplasms/diagnosis , Male , Middle Aged , Muscle Neoplasms/diagnosis , Positron-Emission Tomography , Radiopharmaceuticals , Tomography, X-Ray Computed
11.
Rev. chil. neurocir ; 33: 56-58, dic. 2009. ilus
Article in Spanish | LILACS | ID: lil-665160

ABSTRACT

El Histiocitoma fibroso maligno (HFM) fue descrito por Obrien y Stout en 1964 representando al 1-3 por ciento de los sarcomas del tejido blando de cabeza y cuello. Su histogénesis es incierta y el comportamiento biológico es propenso a la recidiva local y a las metástasis a distancia, preferentemente a ganglios linfáticos regionales, pulmón, hígado y huesos. Se presenta una paciente de 38 años de edad, con una lesión tumoral epicraneal recidivante, de consistencia blanda, fluctuante, no dolorosa, de aproximadamente 5 por 3 cm en región temporal derecha, se le realiza Tomografía computarizada de cráneo e Imagen por resonancia magnética, es intervenida quirúrgicamente resecándose totalmente una tumoración predominantemente quística en intima relación con el músculo temporal y reintervenida quince días después, el Rx de tórax, el ultrasonido abdominal y el survey óseo fueron negativos, el estudio histopatológico arrojó un Histiocitoma fibroso maligno pleomorfico por lo que es enviada al servicio de oncología para tratamiento adyuvante (radioterapia). Actualmente pasado un año se encuentra libre de enfermedad. Concluimos que el HFM primario del músculo temporal es una rara localización entre los sarcomas de partes blandas y aun más entre los de cabeza y cuello, donde el aumento de volumen no doloroso fue la forma clínica de presentación, la tomografía computarizada y principalmente las imágenes por resonancia magnética mostraron la relación músculo tumor, lográndose con el empleo de la cirugía y la radioterapia adyuvante alcanzar buenos resultados.


Subject(s)
Humans , Adult , Female , Histiocytoma, Malignant Fibrous/surgery , Histiocytoma, Malignant Fibrous/diagnosis , Temporal Muscle/pathology , Muscle Neoplasms/surgery , Muscle Neoplasms/diagnosis , Histiocytoma, Malignant Fibrous/radiotherapy , Magnetic Resonance Imaging , Muscle Neoplasms/radiotherapy , Radiotherapy, Adjuvant , Tomography, X-Ray Computed
12.
Radiol. bras ; 40(4): 267-272, jul.-ago. 2007. ilus
Article in Portuguese | LILACS | ID: lil-462381

ABSTRACT

Limite posterior do retroperitônio, o compartimento iliopsoas localiza-se externamente ao mesmo, sendo composto dos músculos psoas maior, psoas menor e ilíaco. O quadro de sintomas dos pacientes com acometimento patológico deste compartimento é amplo e inespecífico, podendo haver importante atraso no diagnóstico. Entretanto, na busca do diagnóstico etiológico das alterações do compartimento iliopsoas, sabemos que as infecções, os tumores e as hemorragias respondem pela quase totalidade das lesões. Por meio da avaliação retrospectiva de exames radiológicos de pacientes com patologias do iliopsoas e que tiveram o diagnóstico confirmado por exame anatomopatológico ou acompanhamento clínico, revisamos a anatomia deste compartimento, assim como as suas principais formas de acometimento, identificando sinais que auxiliem na diferenciação dos potenciais diagnósticos diferenciais. Na abordagem de cada patologia discutiremos os principais sinais radiológicos, como a presença de gás em abscessos piogênicos, alterações ósseas em corpos vertebrais nas lesões secundárias a tuberculose, comprometimento dos planos fasciais nas lesões tumorais e diferenças na densidade e intensidade de sinal dos hematomas nas diferentes fases de degradação da hemoglobina, entre outros. Dessa forma, procuramos apresentar casos que exemplifiquem as doenças mais freqüentes do compartimento iliopsoas, destacando a importância dos seus diferentes sinais, aproximando-nos de um diagnóstico etiológico específico.


The iliopsoas compartment, a posterior boundary of the retroperitoneum, is comprised of the psoas major, psoas minor and iliac muscles. The symptoms picture in patients presenting with pathological involvement of this compartment may show a wide range of nonspecific clinical presentations that may lead to delayed diagnosis. However, in the search of an etiological diagnosis, it is already known that inflammation, tumors, and hemorrhages account for almost all the lesions affecting the iliopsoas compartment. By means of a retrospective analysis of radiological studies in patients with iliopsoas compartment lesions whose diagnosis was confirmed by anatomopathological evaluation or clinical follow-up, we have reviewed its anatomy as well as the main forms of involvement, with the purpose of identifying radiological signs that may help to narrow down the potential differential diagnoses. As each lesion is approached we will discuss the main radiological findings such as presence of gas in pyogenic abscesses, bone destruction and other bone changes of vertebral bodies in lesions secondary to tuberculosis, involvement of fascial planes in cases of neoplasms, and differences in signal density and intensity of hematomas secondary to hemoglobin degradation, among others. So, we have tried to present cases depicting the most frequent lesions involving the iliopsoas compartment, with emphasis on those signs that can lead us to a more specific etiological diagnosis.


Subject(s)
Humans , Psoas Abscess/diagnosis , Psoas Abscess/pathology , Muscle Neoplasms/diagnosis , Psoas Abscess , Psoas Abscess/physiopathology , Diagnosis, Differential , Tomography, X-Ray Computed
14.
Indian J Pathol Microbiol ; 2004 Apr; 47(2): 279-81
Article in English | IMSEAR | ID: sea-74641

ABSTRACT

Intramuscular myxoma is a relatively rare soft tissue tumour. Here we present a case which was diagnosed as intramuscular myxoma on cytology and confirmed on histopathology. This is the first such reported case from this country.


Subject(s)
Adult , Biopsy, Fine-Needle , Diagnosis, Differential , Female , Humans , Muscle Neoplasms/diagnosis , Myxoma/diagnosis
16.
Anon.
West Indian med. j ; 52(1): 61-61, Mar. 2003.
Article in English | LILACS | ID: lil-410831
18.
Article in English | WPRIM | ID: wpr-228332

ABSTRACT

Intramuscular sparganosis is not common, and its rarity makes it difficult to be distinguished from soft tissue tumors. A case of rare intramuscular sparganosis is reported. A 44-year-old man presented with a painful mass in the left thigh for 8 months, which was initially diagnosed a as soft tissue tumor. Ultrasonography and MRI revealed a multilobulated mass in the sartorius muscle. After the needle biopsy under the guidance of ultrasonography, sparganum was discovered under microscopic examination of the excised tissue. Surgical excision was performed, and a live larva of sparganum was removed. Sparganosis should be considered in the differential diagnosis of soft tissue tumors, especially among Koreans who have frequently ingested mountain water and consumed raw snakes or frogs.


Subject(s)
Adult , Diagnosis, Differential , Humans , Male , Muscle Neoplasms/diagnosis , Sparganosis/diagnosis
19.
Rev. bras. ortop ; 32(11): 891-3, nov. 1997. ilus
Article in Portuguese | LILACS | ID: lil-209279

ABSTRACT

Os autores mostram um caso de schwannoma benigno intramuscular da coxa. É uma entidade nao usual de diagnóstico clínico difícil, principalmente pela baixa sintomatologia e localizaçäo anômala. Sao enfatizados os métodos para melhor acurácia diagnóstica e tecidas conclusöes.


Subject(s)
Humans , Female , Middle Aged , Muscle Neoplasms/diagnosis , Neurilemmoma/diagnosis , Thigh
20.
Rev. bras. ortop ; 31(1): 93-5, jan. 1996. ilus
Article in Portuguese | LILACS | ID: lil-240280

ABSTRACT

Os autores apresentam caso raro de tumor intramuscular em que somente após a biópsia excisional é obtido o diagnóstico de mixoma intramuscular. Devido à raridade da lesão, é feito relato do caso.


Subject(s)
Humans , Female , Middle Aged , Muscle Neoplasms/diagnosis , Myxoma/diagnosis , Perna , Muscle Neoplasms/pathology , Myxoma/pathology
SELECTION OF CITATIONS
SEARCH DETAIL