Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0035412 (rhabdomyosarcoma)
 6,156 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Twenty-five cases of malignant tumors of the face in children under 16 years of age were reviewed. In each case the presenting complaint was related to a mass of the face, without a known primary malignancy. Rhabdomyosarcoma was the most common malignancy, followed by equal numbers of histiocystic malignancies and malignant lymphomas. Chloroma and neuroblastoma were less common. Plain films were obtained on every patient and were always felt to be an appropriate part of the work-up. The plain films suggested or made the diagnosis of malignancy in 16 of the patients. The most helpful additional study was tomography. CT was the modality of choice for tumors originating in or extending into the orbit, and for intracranial extension. Xeroradiography best demonstrated a superficial soft tissue tumor. In evaluating facial malignancies, the number and sequence of examinations must be individualized according to the presentation.
Pediatr Radiol 1980 Sep
PMID:Malignant facial tumors in children: radiologic evaluation. Stressing value of conventional and computerized tomography. 625 35

Three different human tumor lines in culture, a rhabdomyosarcoma, a bronchogenic carcinoma and a metastatic melanoma, release proteins (transforming growth factors, TGFs) into the medium that confer the transformed phenotype on untransformed fibroblasts. These proteins are acid and heat-stable; produce profound morphologic changes in rat and human fibroblasts; and enable normal anchorage-dependent cells to grow in agar. Removal of the transforming protein results in a reversion of cell phenotype. The major activity interacts with epidermal growth factor (EGF) cell membrane receptors. The peptides from these tumor cells are similar in their action to the sarcoma growth factor (SGF) released by murine sarcoma virus-transformed rodent cells. The most anchorage-independent tumor cells released the most TGFs. EGF-related TGFs were not detectable in fluids from cultures of cells with high numbers of free EGF membrane receptors (normal human fibroblasts and human carcinomas).
Proc Natl Acad Sci U S A 1980 Sep
PMID:Transforming growth factors produced by certain human tumor cells: polypeptides that interact with epidermal growth factor receptors. 625 71

The histological diagnosis of malignant fibrous histiocytoma (MFH) seems to have become recently fashionable among pathologists, although its histogenesis and diagnostic criteria are not entirely settled as yet. For practical purposes the differential diagnosis with other easily mistakable mesenchymal tumors should be strictly made with great caution, because of variable histological features of this tumor. The authors attempted to elucidate the differential points from other tumors in a review of 189 cases of malignant soft tissue tumors. Some cases of carcinoma mimicking MFH were also reviewed. No single criterion for making the histological diagnosis of MFH was obtained. Its histological features and differential points from pleomorphic rhabdomyosarcoma and fibrosarcoma were tabulated. The recognition of a true tumor osteoid was emphasized as a single differential point between osteosarcoma and MFH often with fibrous areas mimicking osteoid. Renal cell carcinoma metastasizing to bone, which was misinterpreted as MFH on biopsy tissue, was also described and its differential point was stated.
Acta Pathol Jpn 1980 Sep
PMID:Malignant fibrous histiocytoma with special reference to its differential diagnosis. 625 39

Of 220 consecutive primary renal tumors of childhood, 17 contained substantial amounts of histologically identifiable striated muscle cells (over 10% of sampled tumor parenchyma). These tumors could be further subclassified into two groups: Wilms' tumors with "massive" rhabdomyogenesis (one-third or more of the tumor parenchyma composed of muscle), and Wilms' tumors with "moderate" rhabdomyogenesis (10-30% muscle composition. The former tumors were invariably seen in young children, under 4 years of age; often the patients were infants 1 year of age, or younger, and more than half of the patients in this group had bilateral tumors. Bilaterality was not seen in patients harboring tumors with "moderate" rhabdomyogenesis, whom in addition, were older children. In both groups, there was a tendency for polypoid intrapelvic growth. All but one of the tumors described in this report were classified as Wilms' tumor; the single exception was considered be be a primary rhabdomyosarcoma of the kidney. Patients with congenital malformations related to Wilms' tumor (one aniridia, one hemihypertrophy) were seen only in the group with"massive" rhabdomyogenesis. However, anatomical lesions consistent with neoplastic multifocal origin were present in both groups. Thus, our findings indicate a definite correlation between extensive rhabdomyogenesis and clinical behavior. This relation is expressed in patterns of age distribution, bilaterality and manner of growth, which are sufficiently consistent to individualize this histologic variant as a cytodifferentiated form of nephroblastoma.
Am J Surg Pathol 1981 Sep
PMID:Rhabdomyogenesis in renal neoplasia of childhood. 627 22

A case of proliferative myositis of the masseter muscle in a 62-year-old woman is presented and pertinent literature is reviewed. This benign pseudosarcomatous proliferative lesion has not been previously reported in any of the muscles of mastication. Clinically the patient presented with pain and difficulty in opening of the mouth. On initial examination, a malignant salivary gland tumor was suspected. The proliferative myositis exhibits a disturbing microscopic appearance characterized by the presence of numerous hyperchromatic fibroblasts and oval or spindle-shaped giant cells which resemble malignant rhabdomyoblasts. These lesions have been often misdiagnosed as rhabdomyosarcoma and other types of sarcomas. Awareness of the microscopic characteristics of proliferative myositis and the possibility of its occurrence in the perioral soft tissues is important in avoiding misdiagnosis of this benign condition.
Cancer 1983 Sep 01
PMID:Proliferative myositis of the masseter muscle. A case report and a review of the literature. 634 58

Malignant peripheral nerve sheath tumors are uncommon sarcomas of Schwann cell or fibroblastic derivation which occasionally show histologic evidence of focal divergent differentiation to rhabdomyosarcoma, osteosarcoma, chondrosarcoma, angiosarcoma, epithelial elements, or a combination thereof. The finding of these heterotopic elements in nerve sheath sarcomas is believed to illustrate the differentiating capacity of neuroectodermal tissue. The authors present the clinicopathologic features of 17 such tumors, which represent 14.7% of the malignant peripheral nerve sheath tumors in the authors' institutional experience. Most of the lesions were associated with von Recklinghausen's disease. These tumors do not seem to differ from ordinary malignant peripheral nerve sheath tumors in presentation, operative, gross, and microscopic features, response to therapy, or prognosis.
Cancer 1984 Sep 15
PMID:Malignant peripheral nerve sheath tumors with divergent differentiation. 643 4

Rhabdomyosarcoma presenting as a systemic disease is rare. This report concerns a 12-year-old girl who came to medical attention for what was thought to be a hematologic malignancy. Diffuse lytic bone lesions and large primitive cells in the bone marrow exhibiting erythrophagocytosis supported this diagnosis. During the course of the disease, a soft tissue mass in the region of the left ankle was removed and was a typical alveolar rhabdomyosarcoma. Retrospective review of the marrow, including electron microscopy, demonstrated that the primitive marrow cells were probably rhabdomyoblasts as well. The clinical course was a rapid downhill one in which lytic bone lesions and hypercalcemia were prominent. Although rhabdomyosarcoma eventually may disseminate, initial widespread disease without a clinically apparent primary can be a diagnostic dilemma. This clinical presentation, in combination with the recognized aggressiveness of the alveolar histologic subtype, identifies a rare subgroup of patients with rapidly fatal disease.
Am J Clin Pathol 1984 Sep
PMID:Systemic rhabdomyosarcoma with diffuse bone marrow involvement. Case report of an unusual presentation. 646 2

Seventy-eight cases of adjuvant chemotherapy for primary soft tissue sarcoma including 51 cases of intra-arterial infusion chemotherapy were studied. The patients ranged in age from 1 to 92 years with a median age of 34 years. Thirty-nine patients were male and 39 were female. The seventy-eight cases were comprized of 17 rhabdomyosarcoma, 12 liposarcoma, 12 neurogenic sarcoma, 10 malignant fibrous histiocytoma, 8 leiomyosarcoma, 7 angiosarcoma, 8 others and 4 unclassified sarcomas. Fifty-one patients with soft tissue sarcoma of the extremities were treated by intra-arterial infusion chemotherapy with either VCQ (Vincristine and Carbazilquinone) or VCQ, A (Vincristine, Carbazilquinone and Adriamycin). Out of 42 patients with measurable lesions, 2 CR, 4 PR, 33 NC and 3 PD were obtained. Histological examinations demonstrated histological effect of GI 19, G IIa 11 and G IIb 7 by Ohboshi and Shimosato's criteria. Remarkable effects of treatment were noted in most rhabdomyosarcoma patients. After intra-arterial infusion chemotherapy, a variety of surgical procedures ranging from marginal resection and wide resection to radical amputation were employed in 44 patients. Local recurrence was 27% and distant metastasis developed in 47% of cases.
Gan To Kagaku Ryoho 1984 Sep
PMID:[Adjuvant chemotherapy in the treatment of primary soft tissue sarcomas, with special reference to intra-arterial infusion chemotherapy]. 647 41

Pseudohyperparathyroidism to sarcomas is very rare. A 16-year-old boy had a rhabdomyosarcoma and severe hypercalcemia associated with an elevated serum parathyroid hormone (PTH) level and osteolytic bone metastases. The four parathyroid glands were normal. Both the hypercalcemia and the serum PTH level responded to chemotherapy.
Arch Pathol Lab Med 1984 Sep
PMID:Hypercalcemia and elevated serum parathyroid hormone level in association with rhabdomyosarcoma. 654 22

Fetal rhabdomyomas are rare benign tumors of skeletal muscle that must be distinguished histologically from various sarcomas, including rhabdomyosarcoma. They have recently been subdivided into two histologic variants myxoid and cellular fetal rhabdomyomas, respectively. This article describes the sixth fetal rhabdomyoma to be reported in the oral regions, illustrates the histologic features of the two types, and discusses the means of distinguishing these lesions from various other conditions with which they may be confused.
Oral Surg Oral Med Oral Pathol 1983 Sep
PMID:Fetal rhabdomyoma of the tongue, with a discussion of the two histologic variants of this tumor. 657 62


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