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T Clerici

Publications and source records attributed to T Clerici.

At least 19 recordsLinked to original sources
PubMed2006

[Melanoma within naevus spilus: 5 cases].

BACKGROUND: Nevus spilus is defined as café-au-lait macules with dark maculopapular speckles. Histologically, it has the aspect of lentigo associated with nevocellular nevus. There are 3 types of nevus spilus: small or medium-sized (<20 cm), giant and zosteriform. Malignant transformation of nevus spilus is rare. PATIENTS AND METHODS: We analyzed the cases of 5 patients presenting melanoma within nevus spilus as well as 20 published cases. The evaluation criteria were: for nevus spilus: size, type, topography, age of onset and presence of dysplastic nevi within the nevus spilus; for melanoma: clinical aspect, histological type, thickness, level and age at diagnosis. The presence of other risk factors for melanoma was noted. RESULTS: The 14 women and 11 men had a mean age of 49 years at melanoma diagnosis. Type of nevus spilus was: small or medium-sized (15 cases), zosteriform (6 cases) and giant (4 cases). Only 3 nevi spili were<4 cm in diameter. Nevus spilus was present since birth (11 cases), childhood (7 cases), after the age of 20 years (3 cases) and was unspecified in 4 cases. Three of our five patients had other risk factors for melanoma. Two patients were presenting 2 melanomas within nevus spilus. The histological type of melanoma was not specified in 8 cases but SSM was the most common type (13 cases). Median Breslow thickness was 1.25 mm (0.27 to 8 mm) for the 19 cases in which it was specified. CONCLUSION: The following criteria appeared to be associated with risk of developing melanoma in nevus spilus patients: nevus spilus present since birth, nevus spilus over 4 cm in diameter, and giant or zosteriform nevus spilus. Development of melanoma within nevus spilus is a rare event. Consequently, guidelines for follow-up of nevus spilus cannot be defined. However, follow-up is recommended, and in particular, self-examination.

Adult↗
PubMed2004

[Medial mobilisation of the left hemicolon].

INTRODUCTION: Laparoscopic surgery of the colon is becoming more and more popular. However, regarding sigmoid resection, controversy remains concerning the extent of mobilisation, particularly regarding the splenic flexure. We developed a technique for anterior resection that meets all surgical standards: the anterior approach. MATERIALS AND METHODS: From October 1999 to March 2001, 50 patients with benign diseases of the colon underwent laparoscopically assisted sigmoid resection. A completely anterior approach for mobilisation of the left hemicolon was used in all cases. Positioning the patients in Trendelenburg position on the extreme right side enabled primary ligation of the inferior mesenteric vein and artery as well as complete mobilisation of the splenic flexure from the middle. A transanal circular stapling device was used to reanastomose the colon 10-12 cm from the anus. RESULTS: There were conversion and complication rates of 10% each, and three patients needed to be reoperated. The median operating time was 180 min. Patients could be dismissed on the 14th postoperative day. CONCLUSION: To establish an operative standard, this technique has so far been used only for benign colon diseases. According to our experience, we think that it meets all oncological standards. Use of this technique in the treatment of malignant diseases seems therefore justified.

Adenoma, Villous↗
PubMed2004

[Treatment of dermatofibroma protuberans with fixed Mohs' micrographic surgery].

INTRODUCTION: Dermatofibrosarcoma protuberans is a tumor of intermediate malignancy characterized by its aggressive local growth due to pseudopodium-like outgrowths and marked propensity to recur after surgical excision. To achieve complete cure with conventional surgery, surgical margins up to 5 cm are required, leading to wide scars. Mohs' micrographic surgery is used for the removal of certain malignant tumors, both ensuring complete excision by examination of all margins as well as minimizing normal tissue loss. However, differentiating minimal residual tumor from normal skin can be difficult on the frozen sections used in Mohs' micrographic surgery. Our aim was to develop a procedure of Mohs' micrographic surgery in conjunction with rush formalin-fixed, paraffin-embedded tangential sections. PATIENTS AND METHODS: Ten consecutive cases have been prospectively treated since 1998. Under local anesthesia, the tumor was first excised including lateral margin of 1 cm and a deep margin including the underlying muscle aponevrosis. A 2 to 3 mm thick horizontal section of the surgical bed was then removed, rush formalin-fixed, paraffin-embedded, tangentially sectioned, hematin-eosin stained, and eventually stained with an anti-CD34 monoclonal antibody. While waiting for pathology results, the surgical bed was not definitively closed. If excision was incomplete, an oriented complementary excision was performed. RESULTS: Excision was complete after the first stage in 7 patients and incomplete only deeply in 3. Lateral surgical margins were reduced to 1.3 cm in all patients, facilitating wound closure: direct suture (5 patients), controlled wound healing (3 patients) or flap coverage (2 patients). No recurrence has been observed after a mean follow-up of 26 months. DISCUSSION: The use of Mohs' micrographic surgery in conjunction with rush formalin-fixed, paraffin-embedded tangential sections reduce surgical margins in dermatofibrosarcoma protuberans. This procedure would be interesting in difficult sites, such as the genitalia, the breast, or the periarticular regions. Other cases, and longer follow-up are however necessary to validate this promising technique.

Adult↗
PubMed2004

[Mohs' micrographic surgery: history, principles, critical analysis of its efficacy and indications].

OBJECTIVES: To systematically review the literature for studies reporting on the role of Mohs' micrographic (MMS) surgery in the treatment of skin tumors. To show how it is performed in France. DESIGN: We reviewed with a quality grid all studies indexed in MEDLINE before 2003/01/01 and published in English or French. Data were extracted by two independent reviewers. MAIN OUTCOME MEASURES: Quality of clinical studies, recurrence rates, number of patients lost to follow-up. RESULTS: No randomized study was found among the 493 references found. Studies of lower quality, on procedures similar to MMS, or previous systematic reviews were therefore selected. In tumors such as basal (BCC) or spinous (SCC) cell carcinoma, microcystic adnexal carcinoma, dermatofibrosarcoma protuberans, and Merkel cell carcinoma, MMS commonly induced lower recurrence rates than figures reported for conventional treatments and/or reduced surgical margins. Studies on melanoma were of low quality. CONCLUSIONS: Although no evidence-based guidelines could be developed, MMS should be used mainly for larger, morphea, micronodular or infiltrative-type, or recurrent BCCs located in danger zones, but also (sometimes with a slightly modified procedure) in microcystic adnexal carcinomas, dermatofibrosarcoma protuberans, Merkel cell carcinoma, and in aggressive forms of SCC. Randomized, controlled studies should be performed.

Humans↗
PubMed2004

[Unusual cutaneous lesions of familial Mediterranean fever].

BACKGROUND: Familial mediterranean fever belongs to the periodic fever syndromes. During the attacks, fever is associated with abdominal pain, arthralgia, or both. Cutaneous involvement occurs in 7 to 46 p. 100 of cases and mainly consists in erysipelas-like erythema. We report on three patients treated for familial Mediterranean fever who developed unusual cutaneous lesions. OBSERVATIONS: All the patients had long past history of familial mediterranean fever without cutaneous involvement except, for the third patient who had pseudo-erysipela. The first patient had diffuse Sweet's syndrome-like lesions, the second developed long lasting panniculitis of the thigh and the third had a persistent and lichenified erysipela-like plaque. In two patients, skin histology revealed an inflammatory infiltrate with neutrophils. In all cases, an increase in the colchicine dose led to the rapid resolution of the lesions. DISCUSSION: In our 3 case reports, the lesions were particular because of their atypical clinical appearance, their long duration, and they differed from the usual pseudo-erysipela aspect. Histopathologically, the lesions were similar to pseudo-erysipela, which has led some authors to hypothesize that cutaneous lesions of familial mediterranean fever belong to neutrophilic dermatoses. This hypothesis is supported by the response to the increase in colchicine doses.

Aged↗
PubMed2001

No evidence of somatic FGFR3 mutation in various types of carcinoma.

Germline specific point mutations in the gene encoding fibroblast growth factor receptor 3 (FGFR3) are associated with autosomal dominant human skeletal dysplasia and craniosynostosis syndromes. Mutations identical to the germinal activating mutations found in severe skeletal dysplasias have been identified in certain types of cancer: at low frequency in multiple myeloma and cervix carcinoma and at high frequency in bladder carcinoma. We analysed, by SSCP and sequencing, the prevalence of FGFR3 mutations in 116 primary tumours of various types (upper aerodigestive tract, oesophagus, stomach, lung and skin). The regions analysed encompassed all FGFR3 point mutations previously described in severe skeletal dysplasia and cancers. No mutations were detected in the tumour types examined, suggesting that FGFR3 mutations are restricted to a few tumour types, the evidence to date suggesting that they are very specific to bladder carcinomas.

Bone Diseases, Developmental↗
PubMed2001

10 Swiss kindreds with multiple endocrine neoplasia type 1: assessment of screening methods.

PRINCIPLES: Multiple endocrine neoplasia type 1 (MEN1) is an autosomal dominant disease characterised by the combined occurrence of tumours of the parathyroid glands, the enteropancreatic neuroendocrine system and the anterior pituitary gland. The genetic defect has been mapped to the long arm of chromosome 11q13, and the MEN1-gene was recently identified by positional cloning. Genetic screening for MEN1 germline mutations allows the identification of gene carriers in affected kindreds. Biochemical and radiological screening for MEN1 tumours allows an earlier diagnosis and treatment, and, thus may reduce morbidity and mortality. Since there is no consensus about the frequency and the extent of the necessary screening investigations, evaluation of proposed screening programs is of importance. METHODS: The aims of our study were to identify the MEN1-gene mutations and to detect the gene-carriers in 10 Swiss MEN1 families, as well as to assess biochemical and radiological screening methods. The study included 45 members from 10 MEN1 families. RESULTS: Every family had a different type of MEN1-gene mutation. Thirty out of 45 family members were gene mutation carriers. Twenty-two MEN1-gene carriers had typical MEN1 tumours: parathyroid, enteropancreatic and pituitary tumours were found in 21, 14 and 1 patients, respectively. Applying a defined screening program the following manifestations in asymptomatic MEN1-gene carriers were detected: 9 primary hyperparathyroidism, 3 nonfunctioning pancreatic tumours, 1 gastrinoma, 1 nonfunctioning microadenoma of the pituitary and 1 macronodular adrenal hyperplasia. CONCLUSIONS: The genetic screening facilitates the identification of individuals who carry MEN1-gene mutations, and allows one to exclude non-mutant gene carriers from further investigations. The prospective biochemical and radiological screening of gene mutation carriers allows the earlier detection of MEN1-associated tumours. Therefore, it might be expected that morbidity and mortality of the MEN1 could be reduced.

Adolescent↗
PubMed2001

[Bowen disease treated with scanned pulsed high energy CO2 laser. Follow-up of 6 cases].

INTRODUCTION: Cutaneous Bowen's disease is an intra-epidermal squamous cell carcinoma. PATIENTS AND METHOD: Ten cases of cutaneous Bowen's disease diagnosed among 8 patients were treated by scanned high energy carbon dioxide laser between November 1996, and March 1998. A biopsy was performed in all patients before treatment. RESULTS: The post-treatment follow-up extended from 1 to 4 years with an average follow-up of 2 years and 11 months. Only one patient, whose lesion was located on the auricle, presented a recurrence after one year. The remaining patients did not present any recurrence during their last control: six patients were followed for two years or more and one patient for one year. We demonstrate a histological and clinical correlation between the number of carbon dioxide laser passes before a clinical endpoint and the thickness of the epidermal carcinoma treated. DISCUSSION: This new treatment has comparable efficacy to other treatments. It can be applied to extensive lesions without sequelae except for the risk of residual hypopigmentation.

Adult↗
PubMed1999

[Perforating veins and venous insufficiency].

As communicating link between the deep and the superficial venous system the perforating veins are of special importance. With the introduction of the subfascial videoendoscopic dissection of the perforating veins the interest in anatomic and topographic aspects of the surgical treatment of insufficient perforators has increased. Different pathophysiological conditions can cause insufficient perforating veins. We can distinguish between a primary form and a secondary form caused by an advanced varicosis of the main superficial veins. A third entity consists in an insufficiency created by a postthrombotic alterations of the deep venous system. Primary insufficient perforators should be treated surgically. In the case of a secondary insufficiency the indication is dependent on the extent of the pathological findings. If there is an obstruction of the deep venous system which causes the insufficiency of a perforator the vein should not be divided. The videoendoscopic subfascial dissection of the insufficient perforating veins has several advantages compared with direct percutaneous exposure. The technique is easy to learn, however it requires profound knowledge about the compartmental spaces and the topographic anatomy of the perforating veins in the lower leg.

Endoscopes↗
PubMed1998

Treatment of early AIDS-related Kaposi's sarcoma with oral all-trans-retinoic acid: results of a sequential non-randomized phase II trial. Kaposi's Sarcoma ANRS Study Group. Agence Nationale de Recherches sur le SIDA.

OBJECTIVE: To assess the efficacy and safety of all-trans-retinoic acid (ATRA), a retinoid with antitumour activity that inhibits in vitro the growth of Kaposi's sarcoma cells, in patients with low-risk AIDS-associated Kaposi's sarcoma. DESIGN: Non-randomized phase II study, using a group sequential procedure to determine whether the response rate to ATRA was above 10%. SETTING: Nine referral French centres. PATIENTS: Twenty HIV-seropositive men with CD4 cells > or = 200 x 10(6)/l, low-risk Kaposi's sarcoma [T0I0S0 according to the classification of AIDS Clinical Trials Group (ACTG)] not previously treated with systemic anti-Kaposi's sarcoma agents, and with at least four measurable lesions were included. INTERVENTIONS: ATRA was given orally 45 mg/m2 daily for 12 weeks. MAIN OUTCOME MEASURE: Tumour response evaluated according to ACTG criteria. RESULTS: Nineteen patients were evaluated for response: partial response, stabilization and progression were found in eight (42%), seven (37%), and four (21%) patients, respectively. Gradual flattening and lightening of lesions was observed in responders after at least 2 months of ATRA. All patients with partial response at week 12 pursued ATRA for another 15+/-7 weeks. Further improvement was observed in six patients. Median duration of response was 332 days. Cheilitis, transient headaches and skin dryness were the main toxicities noted. No significant changes in HIV viral burden or serum interleukin-6 pathways were observed. CONCLUSIONS: ATRA is well tolerated and effective enough in Kaposi's sarcoma patients to warrant further evaluation.

Acquired Immunodeficiency Syndrome↗
PubMed1997

[Intraoperative cholangiography as a routine method? A prospective, controlled, randomized study].

A prospective, controlled, randomized trial was conducted in 275 patients with symptomatic gall stone disease, whose history, laboratory data or sonographical findings did not suggest common bile duct stones. Of these patients, 137 did not undergo intraoperative fluoroscopic cholangiography (IOC), but in the remaining 138 patients IOC was attempted. In 111 cases (80.4%) the biliary system was sufficiently visualized. In 3 patients (2.7%) calculi in the cystic or common bile duct were diagnosed, which would have been overlooked without IOC. IOC was false-positive in one case. One year after the operation the patients were asked to return for a follow-up examination. Three patients in the group without IOC had had symptomatic passage of a stone, and one had a common bile duct stone removed by endoscopic papillotomy. A retained stone was discussed as etiology for a pancreatitis in a fifth patient in this group. No patient sustained long-term sequelae from the retained common bile duct stones. None of the patients in the IOC group had evidence of cholangiolithiasis at follow-up. There was no difference between the study groups concerning the incidence of post-operative complications. The operations with IOC lasted significantly longer (92 +/- 31 min vs 77 +/- 28 min). According to our data and those published earlier, the additional financial and logistic expenditure associated with routine IOC is not justified. Patients with the preoperative suspicion of a common bile duct stone should have endoscopic bile duct clearance (ERCP and EPT) prior to cholecystectomy.

Adult↗
PubMed1997

[Transoral video-endoscopic esophageal diverticulostomy--a new treatment method for Zenker's diverticulum].

70% of the esophageal diverticula are pharyngoesophageal diverticula. They are caused by a malfunction of the superior esophageal sphincter. Surgical treatment consisted of a myotomy of the superior esophageal sphincter and the resection of the diverticulum through a lateral cervical incision. With the described new endoscopic transoral technique the septum between the diverticulum and the esophagus is divided by a stapling device and both lumina are combined resulting in a esophago-diverticulostomy. At the same time a myotomy of the transverse part of cricopharyngeal muscle and the proximal esophageal wall is performed. Due to the design of the stapling device usually a small pouch remains at the bottom of the diverticulum. A modification of the stapler instrument allowed us to shorten the length of this pouch. The time of the endoscopic procedure is markedly reduced compared to the conventional surgical intervention. There is no necessity for special postoperative wound care and the hospital stay is considerably shortened. Furthermore serious complications like fistulas and lesions of the recurrent nerve, encountered with the open surgical intervention, are avoided. This new technique combines the advantages of a minimal invasive approach and the development of new instruments with the confided principles of the conventional operation in treating the pathogenetical mechanisms of Zenker's diverticulum. To assess the value of the technique long term follow up studies as well as comparative trials will be needed.

Endoscopes↗
PubMed1995

[Surgical and nuclear medicine treatment of hyperthyroidism].

Radioiodine and surgery are the therapeutic tools of choice for the definitive treatment of patients suffering from hyperthyroidism. The decision on the therapy to choose for an individual patient will depend on several different factors: etiology of the hyperthyroidism, size of the goiter, age and general medical considerations, availability of radioiodine therapy or of an experienced endocrine surgeon, and the patient's own preferences. It is important for the general practitioner attending and advising a patient to have a basic knowledge of both therapeutic modalities. An overview of indications, results and risks of the radioiodine and surgical therapy is presented.

Antithyroid Agents↗