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At least 19 recordsLinked to original sources

Locally recurrent parathyroid neoplasms as a cause for recurrent and persistent primary hyperparathyroidism.

Between 1982 and 1989, 145 patients underwent operations for persistent or recurrent primary hyperparathyroidism (HPT). At re-exploration, 15 patients (10.3%) were found to have locally recurrent parathyroid tumors (11 patients with adenoma and 4 with carcinoma). These 15 patients had 28 previous operations at outside institutions for HPT. Patients with locally recurrent HPT secondary to adenoma had a longer disease-free interval than patients with locally recurrent carcinoma. At the time of evaluation at the National Institutes of Health (NIH) for recurrent or persistent HPT, each patient was symptomatic and patients with carcinoma had significantly more symptoms and higher serum levels of calcium and parathyroid hormone than patients with adenoma. Locally recurrent parathyroid neoplasm was correctly localized by preoperative testing in 14 of 15 patients. These 15 patients underwent 18 reoperations at NIH for excision of locally recurrent parathyroid tumors. Following the final reoperation (two patients had more than one procedure), each patient had normal serum levels of calcium. In addition each patient remains biochemically cured (based on normal serum calcium level), with a median follow-up interval of 21 months. Local recurrence of parathyroid adenoma comprises a small but significant proportion of cases of recurrent or persistent HPT and can be indistinguishable from parathyroid carcinoma. Findings suggestive of carcinoma include shorter disease-free interval, higher serum levels of calcium and parathyroid hormone, and histologic appearance. Whether the locally recurrent parathyroid neoplasm is benign or malignant, aggressive surgery can control serum levels of calcium in these patients with acceptable rates of morbidity.

Adenoma↗

Comparison of direct spreading and local recurrence of neoplasms.

Neoplastic progression proceeds most commonly with metastatic spreading but also with direct spreading and some minor forms of neoplastic distribution. The difference between metastatic spreading and direct tumor spreading is shown by the fact that metastatic cells are motile and separate from the primary tumor, whereas in direct spreading the progressing cells are less motile and connected with the primary tumor. This latter type of spreading is especially common in kidney cancers. In the case of local recurrence where portions of the primary tumor have been spared from destruction, regrowth of these portions may occur after different intervals. It is a precondition that the neoplastic metabolism has gained power again. Local recurrence is an offspring of growth from the primary tumor or from a not fully removed metastasis and should be considered as a growth comparable to direct spreading. It may switch during further progression to metastatic progression.

Female↗

Radiofrequency hyperthermia as adjuvant therapy following surgical resection of an experimental malignant neoplasm.

Local recurrence after radical surgery is a major problem with many primary solid cancers. The use of radiofrequency hyperthermia (RFHT) as adjuvant therapy to surgery was explored in the Fischer bladder carcinoma (FBCa)/F344 rat tumor system. After subcutaneous innoculation of 34 rats with 10(6) FBCa cells in suspension, RFHT was administered to 17 animals on days 1, 5, 8, and 12. The development of palpable tumors was delayed but not prevented, and tumor growth was retarded in RFHT-treated animals. In another experiment 40 rats were innoculated by subcutaneous trocar injection with a 1 mm3 piece of FBCa. After tumor excision on day 17, adjuvant therapy (untreated control, mitomycin C, RFHT, or RFHT plus mitomycin C) was started on day 20 (10 rats/treatment). The 20 RFHT-treated rats had only 1 incisional recurrence as compared to 9 recurrences in sham-heated rats (P less than 0.005). The authors conclude that RFHT has considerable value as adjuvant therapy to surgery in these tumors. Additional studies of RFHT as adjuvant treatment after surgical excision of tumors are planned.

Animals↗

Evaluation of a modified hemimandibulectomy for treatment of oral neoplasms in dogs.

A modified hemimandibulectomy was performed for treatment of oral neoplasms in 21 dogs. Intra- and postoperative evaluations included assessment of procedure difficulty, complications, mastication, cosmesis, and the time interval between surgery and recurrence of the neoplasm or clinical evidence of metastasis. Malignant melanoma was the most common neoplasm treated using this technique. The modified hemimandibulectomy was uncomplicated with minimal intraoperative hemorrhage. Three dogs had difficult mastication at 24-hours following surgery, while 5 dogs had partial wound dehiscence. Wound infection was diagnosed in 1 dog. All owners considered the postoperative outcome to provide acceptable cosmesis. Local neoplasm recurrence was documented in 5 dogs and distant (pulmonary) metastasis was diagnosed in 5 different dogs following surgery. The technical modification described in this study seemed to provide for improved mastication during the acute postoperative period compared with other hemimandibulectomy techniques performed by the authors.

Animals↗

Tumour cell dispersion by the ultrasonic aspirator during brain tumour resection.

Ultrasonic aspirators are commonly used to resect brain tumours because they allow safe, rapid and accurate removal of diseased tissue. Since ultrasonic aspirators generate a spray of aerosolized irrigating fluid around the instrument tip, we questioned whether this spray might contain viable tumours cells that could contribute to intraoperative spread of tumour fragments. To test this hypothesis, we collected the spray produced during the resection of nine brain tumours with an ultrasonic aspirator and semi-quantitatively analysed it for tumour presence. The aerosolized irrigation fluid was found to contain intact tumour cells or clumps of tumour cells in all nine instances, and there was a trend of increasing tumour cell dispersion with increasing ultrasonic aspiration times. Further examination is required to determine if this intraoperative dispersion of apparently viable tumour fragments contributes to local neoplasm recurrence.

Brain Neoplasms↗

[Surgical treatment of local recurrence of malignant lung neoplasms].

Forty-seven reoperations were performed on 46 patients for local recurrence of carcinoma and other malignant tumors of the lung after surgical treatment. In two thirds of cases the local recurrence was a consequence of various errors in therapeutic tactics and surgical techniques made during the operation for the primary tumor. The malignant lung tumor recurred in periods of 4 weeks to 20 years after the operation, but mostly (in 74.5% of patients) in the first 5 years. The authors believe that the criteria of a local recurrence are the same morphological structure as of the primary tumor and localization of the second tumor in the stump of the resected bronchus or in the zone of the previous operation. In 17.0% of cases the recurrent tumor was less differentiated than the primary tumor, and in 34.0% it metastasized to the regional lymph nodes. Pneumonectomy-type removal of the remaining parts of the pulmonary tissue was the operation of choice in local recurrence of lung carcinoma. Organ preserving operations were performed only in local recurrence of less malignant tumors. Five-year survival after repeated operations in local recurrence of malignant lung tumors was 42.6% and depended on the morphological structure of the recurrent tumor.

Adolescent↗

[Intra-arterial chemotherapy in locally advanced or recurrent breast neoplasms].

Intraarterial chemotherapy is studied as an alternative procedure for the neoadjuvant treatment of locally advanced and recurrent breast cancer. Our study was aimed at investigating the feasibility, the toxicity and the local response rate of an intraarterial chemotherapy regimen including 5-fluorouracil, epirubicin and mitomycin. These drugs were administered angiographically into the subclavian and internal mammary arteries ipsilateral to the lesion. We treated 20 women with a median age of 58 years (range: 42-74 years); 12 patients had locally advanced breast cancer with a median tumor size of 12 cm (range: 6-20 cm) and 8 patients exhibited cutaneous, thoracic or axillary recurrences, with a median lesion size of 6 cm (range: 3-12 cm). In all, we administered 54 cycles of chemotherapy drugs (mean: 2.7 cycles a patient). Most patients were submitted to selective catheterization of the internal mammary artery (44/54 cycles); all the drugs were injected into the subclavian artery only when catheterization of this vessel was unfeasible. No angiography-related toxicity was observed. No systemic, particularly hematological, toxicity was observed. Four patients exhibited skin erythema in the feeding region of the internal mammary artery, 2 hemialopecia, 1 cutaneous steatonecrosis and 1 transient hemiplegia. We obtained 1 complete remission and 11 partial responses, with 60% overall response rate (12/20 patients). All the patients with locally advanced breast cancer had an objective response and the mean interval between the start of therapy and radical mastectomy was only 49 days. In conclusion, intraarterial chemotherapy for locally advanced or recurrent breast cancer is a feasible and well-tolerated tool which needs further studies, particularly to assess its efficacy.

Adult↗

Surgical treatment of tendosynovial sarcoma.

Tendosynovial sarcoma is notorious for its high rates of local recurrence and metastases after surgical treatment. A retrospective study was made of 109 cases of monobloc wide soft part resection and amputation for primary tumors, and 29 patients who underwent resection of pulmonary metastases. Actuarial five-year survival rates after soft part resection was 70% for untreated, and 61% for previously treated, locally recurrent neoplasms. Corresponding rates after amputation were 47% and 64%. Local tumor recurrence developed in 18% of the primary soft part resections and 4% of the amputations, usually when some basic surgical principle had been violated. 35% five-year survival was achieved with judicious resection of solitary and multiple lung metastases in most cases without chemotherapy. Local control of a tendosynovial sarcoma can be achieved with properly executed surgical procedures which adhere to established tenets of cancer surgery. Resection of pulmonary metastases merits an important position in the management of these patients.

Amputation, Surgical↗

Histopathological features of recurrent pleomorphic xanthoastrocytomas: further corroboration of the glial nature of this neoplasm. A study of 3 cases.

Pleomorphic xanthoastrocytoma (PXA), a tumor most often presenting superficially over the cerebral hemisphere of young subjects, has certain morphological similarities to fibrous histiocytoma (or fibrous xanthoma) of the meninges and brain, namely the occurrence of lipid-laden neoplastic cells and, frequently, a dense reticulin fiber network. The detection of glial fibrillary acidic (GFA) protein in the tumor cells helped to establish its astrocytic derivation, but it has been advanced that, in spite of this agreed observation, the tumor should still be regarded as a fibrous xanthoma of meningeal origin. Although many patients have a long symptom-free postoperative survival, local recurrences at varying intervals after surgery have been noted in some instances. Weldon-Linne et al. first reported that such a recurrence had the morphology of a small-cell glioblastoma. We are reporting three further examples of locally recurrent neoplasms in patients whose original meningocerebral tumors had the typical features of PXA; the recurrences (developing 7 months, 7 years and 15 years, respectively, after surgery) were small-cell glioblastomas. The rich reticulin network present in the initial tumor was mostly lost in the recurrences. This anaplastic evolution further confirms the astrocytic nature of the PXA.

Adolescent↗

[Metastasis following curatively treated cervix cancer].

Frequency of for distant metastases and intervall following curative treatment of cervical carcinoma are reported in cases with no local neoplasms recurrence. Main localizations in this clinical study are lungs, bones and liver. Causes and conclusions for metaphylexis are discussed.

Combined Modality Therapy↗

Isolated local recurrence of renal neoplasm with caval involvement 16 years after radical nephrectomy.

OBJECTIVE: To report a case of local recurrence 16 years after radical nephrectomy; to analyse literature data concerning, treatment and prognosis. METHODS/RESULTS: We report a case of local recurence associated with caval trombosis who was underwent an en-bloc resection of vena cava along with pericaval lesion and caval replacement with PTFE prosthesis. The Authors reviewed and analysed literature data. CONCLUSIONS: Local recurrence after radical nephrectomy is rare as it is reported only in 2-4% of patients. This condition is even rarer beyond 10 years especially if associated with caval trombosis. A case of isolated local recurrence of renal cell carcinoma with caval involvement 16 years after radical nephrectomy is described herein. To the best of our knowledge, this is the first case reported in literature. This case highlights the opportunity of a periodic checkup of patients submitted to radical nephrectomy, even many years after surgery.

Aged↗

Dermatomyositis. Disease associations and an evaluation of screening investigations for malignancy.

Fifty-three adult patients (19 men, 34 women) with dermatomyositis were studied. Two had dermatomyositis associated with benign disorders. Twenty-three (43%) had a malignancy; the risk of malignancy increased with age, but there was no sex difference. Seven malignancies were recurrences and 9 were diagnosed during investigation of dermatomyositis; these 16 were suspected clinically or from abnormal results of simple investigations. Extensive screening tests did not increase the number of malignancies diagnosed. In 7 patients, a diagnosis of malignancy was made more than 9 months after onset of dermatomyositis, although a relationship between malignancy and dermatomyositis was uncertain in two cases; the diagnosis of gynecological malignancy was missed in 2 patients despite appropriate investigations, 1 patient had poorly controlled dermatomyositis, and in 2 patients late diagnosis of malignancy was due to failure to reinvestigate relapse of previously stable dermatomyositis.

Adult↗

[Value of colonoscopy in tumor after-care after colorectal carcinoma].

The significance of colonoscopic follow up is discussed controversially. Colonoscopy after resection of colorectal cancer offers the possibility of direct inspection and to take biopsies for the early detection of local recurrence or additional neoplasms. In a retrospective study we examined the benefit of regular colonoscopies. Between 1/1995 and 4/1996 237 colonoscopies were performed on 164 patients after resection of colorectal cancer. The evaluation was done due to the stage of the primary tumor, the age of the patients, the time after operation and the number of previous colonoscopies. 54 adenomas were found in 35 of 164 patients. 32% of the adenomas were diagnosed in the ascending colon or colon transversum. Additionally three carcinomas were found. There were two local recurrences and one metachronous neoplasm. Two patients were diagnosed without clinical symptoms and were able to undergo potential curative resection again. Because of the number and the localisation of diagnosed neoplasms colonoscopic surveillance should be performed every six months in the first two years after resection of colorectal cancer.

Adenomatous Polyposis Coli↗