PubMed Health⌕ Search

Biomedical subjects

E Martínez Barba

Publications and source records attributed to E Martínez Barba.

15 recordsLinked to original sources

[Selective sentinel node biopsy in melanoma using preoperative lymphoscintigraphy location and intraoperative detection gamma probe].

BACKGROUND: The experience in detection of sentinel lymph node in melanoma using preoperative scintigraphy and intraoperative gamma probe is referred. PATIENTS AND METHODS: We studied 60 patients with stage I-II melanoma who underwent sentinel lymph node biopsy performed using 99m-Tc-labelled sulphur colloid as radioactive tracer. A preoperative scintigraphy was performed and intraoperative gamma probe was used to localize the sentinel node in all cases. Scintigraphy results, effectiveness of intraoperative detection (technical efficacy), pathological results, and follow-up have been studied. RESULTS: Preoperative detection was 98.3% and the mean basin detected was 1.17. There were multiple basins especially when melanomas were on the trunk. Technical efficacy was 98.4% and intraoperative detection was more difficult in parotid gland region. HMB-45 immunohistochemical staining was essential in pathological studies, in whom 10% were positives. Lymphadenectomy could be avoided in 90% of the patients. Recurrences were not detected during follow-up and metastases were found only in non biopsied cases. Sentinel node biopsy morbidity was significative lesser than that of lymphadenectomy. CONCLUSIONS: Preoperative scintigraphy and intraoperative gamma probe use to localize sentinel node in melanoma have a high efficacy. They can reveal multiple basins and they allow a more selective surgical approach and a minimal dissection.

Adolescent↗

Oat-cell carcinoma of the prostate. Diagnosis, prognosis and therapeutic implications.

BACKGROUND: Any carcinoma of prostatic origin which is not an acinary adenocarcinoma of the prostate is considered to be an atypical carcinoma. One member of this group of atypical prostatic tumors is the oat-cell carcinoma, or small cell carcinoma (SCC) of the prostate. This variety of carcinoma constitutes the histologic basis of <1% of all prostatic neoplasms. METHODS: Between 1992 and 1997, four patients were diagnosed with SCC of the prostate at our hospital. In 3 of the 4 cases, the histopathological diagnosis was pure SCC, and in the 4th case there was a component of prostatic adenocarcinoma associated with the SCC. At the time of diagnosis, extracapsular extension of the tumor was present in all 4 cases, with T3 or higher stages in all of them (T(3A)N(0)M(1), T(3A)N(0)M(0), T(3B)N(0)M(1), and T(4)N(0)M(0)). Because of the presence of extracapsular extension, radiotherapy and radical surgery were ruled out for all 4 patients. They were all offered systemic chemotherapy with cyclophosphamide (1 g/m(2)), doxorubicin (50 mg/m(2)) and vincristine (1.2 mg/m(2)). This therapeutic protocol was carried out in only 2 cases. RESULTS: Survival was <1 year in the 3 patients with pure SCC, and the patient with a mixed tumor is alive with detectable disease 9 months after diagnosis. CONCLUSIONS: This poor vital prognosis in SCC stresses the need for early diagnosis a timely and appropriate therapeutic intervention in this condition.

Adult↗

[Malignant melanoma of the penis].

OBJECTIVE: To report a case of malignant melanoma of the penis, a rare malignant neoplasm whose aggressive behaviour carries a poor prognosis. METHODS: A 58-year-old male consulted for a pigmented elevated lesion in the balanopreputial sulcus. The biopsy was positive for melanoma. Complementary studies did not demonstrate disseminated disease. RESULTS: Partial resection of the penis and bilateral inguinal lymphadenectomy were performed. Histological analysis showed two positive nodes in the same lymphatic chain. Interferon was administered for 6 months. The patient remains disease-free at 35 months' follow-up. CONCLUSIONS: Although surgery is the treatment of choice, adjuvant therapy (chemotherapy and immunotherapy) should be considered in those patients without localized disease.

Humans↗

[Intraperitoneal bladder perforation in emphysematous cystitis].

Contribution of one case report of a 69-year old diabetic male patient with neurogenic bladder. The patient developed emphysematous cystitis and peritonitis secondary to intraperitoneal perforation of the bladder. Emphysematous cystitis is an uncommon clinico-radiologic entity more frequent in diabetic and female patients and the elderly. Early diagnosis and treatment may avoid a fatal outcome. The paper includes a review of this condition.

Cystitis↗

[Malignant neoplasms of the penis].

OBJECTIVE: To assess the behaviour and management of these uncommon neoplasias. MATERIAL AND METHODS: Between March 1975 and July 1999, a total of 95 malignant neoplasias of the penis were diagnosed and treated by our unit. Patients mean age was 62 years (28 to 87 years). A retrospective analysis of any associated lesions, biological behaviour of the various neoplasias, as well as therapies used is carried out. RESULTS: The squamous carcinoma of the penis (SCP) is the most frequent pathohistological entity entailing 78 cases (82%), followed by verrucous carcinoma (VC) 13 cases (13.5%), basal cells carcinoma 1 case, and melanoma, lymphoma and penile metastasis 1 case each. There is a significant presence of associated lesions with marked predominance of phimosis. The most frequent reason for the call is an injury of the penis (74 cases; 78%). Treatment was mainly partial penectomy (51 patients; 53.7%), followed by conservative treatment in 28 cases (30%). Inguinal lymphadenectomy was performed in 13 patients (14%), due to either a positive nodular biopsy or a persistent adenopathy following antibiotic therapy. CONCLUSIONS: Neoplasias showing superior biological behaviour are basal cell carcinoma of the penis, and verrucous carcinoma. Prognosis in SCP is based on pathological status and node involvement. Patients with pT1 tumours showed no metastatic adenopathies after follow-up regardless of cytological grading, and are therefore candidates to watchful waiting with regular monitoring. Melanoma of the penis is a highly aggressive tumour due to its high metastatic capacity with a poor prognosis.

Adult↗

[Squamous carcinoma of the penis].

OBJECTIVE: To present our experience with squamous cell carcinoma of the penis. METHODS: We reviewed our series of 73 squamous cell carcinoma of the penis over the last 23 years. Patient mean age was 65.7 years. All lesions had been previously biopsied. Patient records were reviewed for a history of phimosis and related lesions. The histological, clinical and therapeutic aspects, and survival are analyzed. RESULTS: Most of the squamous cell carcinoma of the penis were superficial lesions (pT1). Treatment was by partial penile resection in 42 cases, total penile resection in 9, and emasculation in 2 cases. Conservative surgery was performed in 20 cases (tumor excision in 14 and posthectomy in 6 cases). Lymphadenectomy was performed in 11 patients. Eight patients received radiotherapy to the inguinal region. The rate of recurrence after surgery was 11% (8 cases). Five of the 8 patients with tumor recurrence had been treated by conservative surgery. The 5-year survival rate was 78%. CONCLUSIONS: Penile cancer is uncommon and accounts for less than 1% of tumors in the male in our setting. A higher incidence has been found in men with phimosis, poor hygiene and low sociocultural level. Partial penile resection is the treatment of choice for the primary lesion. The outcome is worse in patients with invasive tumor, poor cell differentiation, ulceroendophytic morphology, and above all in patients with metastatic adenopathy. Radiotherapy provided no benefits, made inguinal evaluation difficult and increased the morbidity in some cases. Patients with pT1 tumor and good cell differentiation showed no metastatic adenopathy during follow-up. Patient follow-up is fundamental to detect recurrence or metastatic adenopathy and to institute treatment immediately.

Adult↗

[Basal cell carcinoma of the penis].

OBJECTIVE: To report an uncommon case of basal cell carcinoma of the penis. METHODS: A case of basal cell carcinoma of the penis is presented. This has been the only case of this tumor type detected in our setting. The literature is briefly reviewed. RESULTS/CONCLUSIONS: Basal cell carcinoma of the penis is rare. To date only 20 cases have been reported in the literature. To our knowledge, no case of distant metastasis has been documented. Diagnosis by gross examination may be difficult due to the broad polymorphism of this lesion and must be confirmed by histological analysis.

Basal Cell Carcinoma↗

[Giant fibroepithelial polyp of the ureter].

OBJECTIVE: To report a case of giant fibroepithelial polyp of the ureter and review the literature with special reference to the diagnosis and treatment of this benign condition. METHODS: A young male patient with a nonfunctioning left kidney caused by a giant fibroepithelial polyp of the ureter is presented. The diagnostic methods and treatment options are discussed. RESULTS: Following the diagnosis of obstructive uropathy with loss of left renal unit function, a left nephroureterectomy was performed which revealed a giant polypoid mass. CONCLUSION: Fibroepithelial polyp of the ureter is a benign condition that is difficult to diagnose with current endoscopic techniques. Endoscopy should be the first therapeutic option if loss of renal function is not irreversible.

Adult↗

[Penile verrucous carcinoma].

OBJECTIVE: To report our experience with verrucous carcinoma of the penis. METHODS: Our series of penile carcinoma over the last 25 years were reviewed; 13 cases of verrucous carcinoma were found. The histological and clinical features, course and treatment of these patients are discussed and current literature reviewed. RESULTS: Of 95 cases of penile carcinoma diagnosed in our hospital, 13 were verrucous carcinoma of the penis (13.7%). Patient mean age was 64.7 years (range 33 to 93). The urethra was compromised in 2 (15.4%) and the corpora cavernosa in 4 (30.7%) patients. Five patients presented with inguinal lymphadenopathy. Treatment was by posthectomy in 3, resection of the glans penis in 2, partial penectomy in 6 and total penectomy in 2. One patient showed local recurrence at a mean follow-up of 7 years. No lymph node or distant metastasis from the primary penile tumor was observed. CONCLUSION: Verrucous carcinoma of the penis shows an aggressive behavior locally, but not biologically. Treatment continues to be by surgery. Patients undergoing surgery aimed at organ preservation should be carefully followed. In most of the patients, early diagnosis could have avoided more aggressive surgical techniques.

Adult↗

[Extrarenal Wilms' tumor: diagnosis and treatment review regarding a case report].

OBJECTIVES: To report a case of extrarenal Wilms' tumor, an uncommon site of presentation of this tumor type. The diagnostic and prognostic aspects of this condition are also discussed. METHODS/RESULTS: A case of retroperitoneal extrarenal Wilms' tumor in a 2-year-old child is presented. The patient underwent surgery and received postoperative chemotherapy. At 3-years' follow-up, no evidence of metastasis has been observed. CONCLUSIONS: Extrarenal Wilms' tumor is rare and has been reported in the literature principally as case reports. Its clinical presentation varies according to the extrarenal localization. The procedures utilized to determine the size of the primary tumor, regional node involvement and the presence of distant metastasis are similar to those utilized in Wilms' tumor of the kidney. Our results demonstrate the utility of chemotherapy; the cytostatic agents utilized appear to be as effective as in Wilms' tumor of the kidney. In our view, radiotherapy should be reserved for the large unresectable residual tumor mass and for distant metastasis.

Humans↗