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1.
Rom J Morphol Embryol ; 64(2): 189-197, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37518876

RESUMO

Otosclerosis is a bone condition affecting the stapes bone within the otic capsule, and its exact cause is still unknown. It is characterized by a lack of proper remodeling of newly formed vascular and woven bone, leading to the development of abnormal osteons and the formation of sclerotic bone. Bilateral otosclerosis is seen in 80% of patients and 60% of otosclerosis patients have a family history of the condition. The etiology of this disease is still unknown, there are lots of theories to explain it. The histopathological (HP) studies of otosclerosis showed that osteoblasts, osteoclasts, vascular proliferation, fibroblasts, and histiocytes were observed in the stapes footplate. The onset of the symptoms occurs by the early third decade of life, usually it doesn't start later. In otosclerosis, the energy exerted by sound at the level of the tympanic membrane is reduced in the inner ear due to the fixation and rigidity of the ossicular chain, leading to hearing loss, especially for low frequencies. The primary clinical symptom of otosclerosis is conductive hearing loss but it is important to note that sensorineural hearing loss and mixed hearing loss can also occur as secondary symptoms of the condition. Another symptom present in patients with otosclerosis is tinnitus. The paper carried out a retrospective study of 70 patients diagnosed with otosclerosis in the Department of Otorhinolaryngology of Emergency City Hospital, Timisoara, Romania, between January 2021 to December 2022. Tissue fragments were processed at Service of Pathology by standard Hematoxylin-Eosin staining. The HP diagnosis was completed using Masson's trichrome staining, Giemsa histochemical staining, and immunohistochemical (IHC) reactions with anti-cluster of differentiation (CD)20, anti-CD3, anti-CD4, anti-CD8, anti-CD34, and anti-CD31 antibodies. The microscopic examination showed a chronic diffuse inflammatory infiltrate that consisted predominantly of mature T-lymphocytes, immunohistochemically positive for CD3, CD4 and CD8. There were also present rare CD20-positive B-lymphocytes. Among the lymphocytes, relatively numerous mast cells were identified, highlighted histochemically by the Giemsa staining. They had numerous purple-violet intracytoplasmic granules. In the connective tissue support, a relatively rich vascular network was identified, consisting of hyperemic capillaries, highlighted immunohistochemically with anti-CD31 and anti-CD34 antibodies. Bone tissues trabeculae showed extensive areas of fibrosis. The collagen fibers were highlighted by Masson's trichrome staining, being stained in green, blue, or bluish green.


Assuntos
Surdez , Perda Auditiva Neurossensorial , Otosclerose , Humanos , Otosclerose/complicações , Otosclerose/patologia , Otosclerose/cirurgia , Estudos Retrospectivos , Estribo/patologia , Perda Auditiva Condutiva/diagnóstico , Perda Auditiva Condutiva/etiologia , Perda Auditiva Condutiva/cirurgia , Perda Auditiva Neurossensorial/patologia
2.
Medicina (Kaunas) ; 59(4)2023 Apr 08.
Artigo em Inglês | MEDLINE | ID: mdl-37109689

RESUMO

Developing in a limited space, rare tumors located at the nose and paranasal sinuses are sometimes difficult to diagnose due to their modest clinical presentation, which is uncorrelated with anatomopathological diversity. This limits the preoperative diagnosis without added immune histochemical study; for that reason, we present our experience with these tumors with the intention of raising awareness. The patient included in our study was investigated by our department through clinical and endoscopic examination, imaging investigations, and an anatomic-pathological study. The selected patient gave consent for participation and inclusion in this research study in compliance with the 1964 Declaration of Helsinki.


Assuntos
Estesioneuroblastoma Olfatório , Hematologia , Neoplasias Nasais , Seios Paranasais , Humanos , Estesioneuroblastoma Olfatório/diagnóstico , Estesioneuroblastoma Olfatório/patologia , Neoplasias Nasais/diagnóstico , Neoplasias Nasais/patologia , Neoplasias Nasais/cirurgia , Cavidade Nasal
3.
Medicina (Kaunas) ; 58(11)2022 Nov 21.
Artigo em Inglês | MEDLINE | ID: mdl-36422227

RESUMO

Background and Objectives: Curcumin (Cc) as an active substance is known for its anti-inflammatory, anticoagulant, antioxidant, and anti-carcinogenic effects, together with its role in cholesterol regulation, and its use in different gastrointestinal derangements. On the other hand, curcumin can be used for its properties as an inactive substance, with Cc particles being more often tested in pharmaceutical formulations for drug delivery, with promising safety records and kinetics. The aim of this research was to obtain and characterize polyurethane microparticles that can be used as a carrier with a controlled Cc release. Materials and Methods: The in vitro samples were characterized by the Zetasizer procedure, and UV-Vis spectroscopy, while the in-vivo measurements on human subjects were performed by non-invasive skin assays (trans-epidermal water loss, erythema, and skin hydration). A total of 16 patients with oropharyngeal cancer stages II and III in equal proportions were recruited for participation. Results: The experimental values of sample characteristics using the Zetasizer identified a mean structural size of 215 nm in the polyester-urethane preparate (PU), compared to 271 nm in the curcumin-based PU. Although the size was statistically significantly different, the IPDI and Zeta potential did not differ significantly (22.91 mV vs. 23.74 mV). The average age during the study period was 57.6 years for patients in the PU group, respectively, and 55.1 years in those who received the curcumin preparations. The majority of oropharyngeal cancers were of HPV-related etiology. There were no significant side effects; 75.0% of patients in the PU group reporting no side effects, compared to 87.5% in the Cc group. The 48 h TEWL measurement at the end of the experiment found a statistically significant difference between the PU and the Cc group (2.2 g/h/m2 vs. 2.6 g/h/m2). The erythema assessment showed a starting measurement point for both research groups with a 5.1-unit difference. After 48 h, the difference between PU and PU_Cc was just 1.7 units (p-value = 0.576). The overall difference compared to the reference group with sodium lauryl sulfate (SLS) was statistically significant at a 95% significance level. Conclusions: Our findings indicate the obtaining of almost homogeneous particles with a medium tendency to form agglomerations, with a good capacity of encapsulation (around 60%), a medium release rate, and a non-irritative potential. Therefore, this polyester-urethane with Cc microparticles can be tested in other clinical evaluations.


Assuntos
Curcumina , Neoplasias Orofaríngeas , Humanos , Pessoa de Meia-Idade , Curcumina/uso terapêutico , Poliésteres , Sistemas de Liberação de Medicamentos , Poliuretanos/química
4.
Rom J Morphol Embryol ; 63(1): 153-160, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36074679

RESUMO

In the last decade, the incidence and mortality associated with laryngeal malignancies has experienced an unfavorable evolution in Romania, in terms of this pathology the country that has become the leader, among the European Union (EU)-27 countries. The aim of the present retrospective study was to analyze the epidemiological data regarding laryngeal cancer and histopathological (HP) particularities in patients diagnosed in Western Romania. Within three years and 10 months (during October 2016-July 2020) in Ear, Nose and Throat (ENT) Clinic of Timisoara Municipal Emergency Clinical Hospital, 194 patients with laryngeal neoplasms (LN) were diagnosed. Most of the patients were male (93.8%), from Timis County, mainly and the neighboring Counties of Caras-Severin, Hunedoara, Mehedinti and Arad. Patient's average age (both sexes) was 62.6 years, with a range from 38 to 84 years and the highest percentages in the 60+ age group (48%). Regarding smoker status, the main cause of the development of the LN, 93.9% of patients were active ones. Regarding localization [International Classification of Diseases 11th Revision (ICD-11)], about 69% were malignant neoplasm of glottis (C32.0), followed by supraglottis (C32.1), larynx-unspecified (C32.9), and subglottis (C32.2). From the HP point of view, several types of tumors were identified, most of which were non-keratinized and keratinized squamous cell carcinomas (about 90%). In addition, there were identified types of verrucous carcinoma, acantholytic carcinoma, squamous papilloma, a possible pleomorphic sarcoma, and pyogenic granuloma. The data presented in this study highlight the growing incidence of LN, which mainly affect men, at an increasingly young age. It is imperative to involve specialists from nutrition, general medicine, ENT, dentistry to start awareness programs and to develop prevention protocols.


Assuntos
Carcinoma de Células Escamosas , Neoplasias Laríngeas , Laringe , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma de Células Escamosas/patologia , Feminino , Humanos , Neoplasias Laríngeas/epidemiologia , Neoplasias Laríngeas/patologia , Laringe/patologia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Romênia/epidemiologia
5.
Medicina (Kaunas) ; 58(9)2022 Sep 16.
Artigo em Inglês | MEDLINE | ID: mdl-36143966

RESUMO

Background and Objectives: In spite of the fact that antibiotics are considered to be the cornerstone of modern medicine, their use in the treatment of cancer remains controversial. In the present study, the main objective was to examine the effects of two antibiotics-tetracycline and ampicillin-on the viability, morphology, migration, and organization and structure of the nuclei and the actin fiber network of pharyngeal carcinoma cells-Detroit-562. Materials and Methods: In order to determine the viability of the cells, the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) method was applied after the cells were stimulated with five concentrations of tetracycline and ampicillin (10, 25, 50, 75, and 100 µM) for 72 h. A scratch assay was used to assess the migration ability of the cells. For the visualization of the nuclei and actin fibers, 4,6-diamidino-2-phenylindole (Dapi) and Rhodamine-Phalloidin were used. Results: There are different effects of tetracycline and ampicillin. Thus, tetracycline: (i) exhibited a concentration-dependent cytotoxic effect, decreasing cell viability to approximately 46%; (ii) inhibits cellular migration up to 16% compared to 60% for control cells; and (iii) induces changes in cell morphology as well as apoptotic changes in the nucleus and F-actin fibers. In contrast, in the case of ampicillin, an increase in viability up to 113% was observed at 10 µM, while a decrease in viability up to approximately 94% was observed at the highest concentration tested (100 µM). Conclusions: The results indicated a different effect regarding the impact on pharyngeal carcinoma cells. Thus, tetracycline has a concentration-dependent cytotoxic effect, while in the case of ampicillin a slight stimulation of cell viability was observed.


Assuntos
Antineoplásicos , Carcinoma , Actinas , Ampicilina/farmacologia , Ampicilina/uso terapêutico , Antibacterianos/farmacologia , Antibacterianos/uso terapêutico , Antineoplásicos/farmacologia , Antineoplásicos/uso terapêutico , Humanos , Tetraciclina/farmacologia
6.
Molecules ; 27(18)2022 Sep 19.
Artigo em Inglês | MEDLINE | ID: mdl-36144839

RESUMO

Colorectal cancer is one of the most frequently diagnosed forms of cancer, and the therapeutic solutions are frequently aggressive requiring improvements. Essential oils (EOs) are secondary metabolites of aromatic plants with important pharmacological properties that proved to be beneficial in multiple pathologies including cancer. Mentha piperita L. (M_EO) and Rosmarinus officinalis L. (R_EO) essential oils are well-known for their biological effects (antimicrobial, antioxidant, anti-inflammatory and cytotoxic in different cancer cells), but their potential as complementary treatment in colorectal cancer is underexplored. The aim of the present study was to investigate the M_EO and R_EO in terms of chemical composition, antioxidant, antimicrobial, and cytotoxic effects in a colorectal cancer cell line-HCT 116. The gas-chromatographic analysis revealed menthone and menthol, and eucalyptol, α-pinene and L-camphor as major compounds in M_EO and R_EO respectively. M_EO exhibited potent antimicrobial activity, moderate antioxidant activity and a low cytotoxic effect in HCT 116 cells. R_EO presented a significant cytotoxicity in colorectal cancer cells and a low antimicrobial effect. The cytotoxic effect on non-cancerous cell line HaCaT was not significant for both essential oils. These results may provide an experimental basis for further research concerning the potential use of M_EO and R_EO for anticancer treatment.


Assuntos
Anti-Infecciosos , Neoplasias Colorretais , Óleos Voláteis , Rosmarinus , Antibacterianos/farmacologia , Anti-Infecciosos/farmacologia , Antioxidantes/química , Antioxidantes/farmacologia , Cânfora , Neoplasias Colorretais/tratamento farmacológico , Eucaliptol/farmacologia , Humanos , Mentha piperita/química , Mentol/farmacologia , Óleos Voláteis/química , Óleos Voláteis/farmacologia , Rosmarinus/química
7.
Artigo em Inglês | MEDLINE | ID: mdl-35886732

RESUMO

The use of tobacco products is a major global public health issue, as it is the leading cause of preventable death worldwide. In addition, nicotine (NIC) is a key component of electronic and conventional cigarettes. Although nicotine's addictive potential is well known, its health effects are not entirely understood. Thus, the main objective of the present study was to evaluate its toxicological profile both in vitro, at the level of three healthy cell lines, and in ovo, at the level of the chorioallantoic membrane. Five different concentrations of nicotine were used in keratinocytes, cardiomyocytes, and hepatocytes for the purpose of evaluating cell viability, cell morphology, and its impact on nuclei. Additionally, the hen's egg test on the chorioallantoic membrane (HET-CAM) method was used to assess the biocompatibility and irritant potential of the chorioallantoic membrane. Across all cell lines studied, nicotine was proven to be significantly damaging to cell viability, with the highest concentration tested resulting in less than 2% viable cells. Moreover, the morphology of cells changed dramatically, with alterations in their shape and confluence. Nicotine-induced cell death appears to be apoptotic, based on its impact on the nucleus. In addition, nicotine was also found to have a very strong irritating effect on the chorioallantoic membrane. In conclusion, nicotine has an extremely strong toxicological profile, as demonstrated by the drastic reduction of cell viability and the induction of morphological changes and nuclear alterations associated with cellular apoptosis. Additionally, the HET-CAM method led to the observation of a strong irritating effect associated with nicotine.


Assuntos
Antineoplásicos , Nicotina , Animais , Antineoplásicos/farmacologia , Linhagem Celular , Galinhas , Membrana Corioalantoide , Feminino , Irritantes , Nicotina/toxicidade
8.
Rom J Morphol Embryol ; 62(2): 605-613, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-35024752

RESUMO

Chondrosarcoma (CHS) is a malignant tumor of soft tissue with cartilaginous differentiation that represent one tenth of all malignant proliferations developed from bone tissues. Even if CHS represents the third malignancy with bone localization, after myeloma and osteosarcoma, it is far less diagnosed in the head and neck region. The current paper presented two cases of conventional CHSs, which were diagnosed in Department of Thoracic Surgery and Department of Otorhinolaryngology of Emergency City Hospital, Timisoara, Romania, between February and June 2021. The malignant cases were of peripheral CHSs, one of scapula, and the other one had an extremely rare tracheal location with microscopic features of conventional low-grade tumors (grade 1). In all cases, conservative surgical curative treatment was performed, with a favorable postoperative evolution.


Assuntos
Neoplasias Ósseas , Condrossarcoma , Osteossarcoma , Condrossarcoma/diagnóstico por imagem , Condrossarcoma/cirurgia , Humanos , Romênia
9.
Rom J Morphol Embryol ; 61(4): 1163-1171, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-34171065

RESUMO

The melanoma, having its origin in the melanocyte cells, is one of the most aggressive forms of skin cancer in the world with one of the highest rates of brain metastasis. The incidence of cutaneous melanoma in the Mediterranean countries varies from three to five cases∕100 000 people∕year. Its prognosis is based on an early diagnosis. Sinonasal mucosal melanoma (SNMM) is an extremely rare tumor, accounting for 0.3-2% of all melanomas. The non-specific symptomatology is often delaying the presentation of the patient at the hospital and therefore the diagnosis. The SNMM is a highly aggressive tumor, and the presence of metastasis at the diagnosis usually implies a poor prognosis. The management of the melanomas requires a precise pre-therapeutic assessment and a multidisciplinary approach for the diagnosis, with surgical treatment or radiotherapy required in order to ensure a better a quality of life. In this paper, we retrospectively analyzed two cases of mucosal melanoma and one case of cutaneous melanoma of the nose.


Assuntos
Neoplasias de Cabeça e Pescoço , Melanoma , Neoplasias Cutâneas , Humanos , Melanoma/diagnóstico , Qualidade de Vida , Estudos Retrospectivos
10.
Rom J Morphol Embryol ; 60(1): 267-271, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31263855

RESUMO

We report the case of a 44-year-old male patient with tonsillar tuberculosis (TB) diagnosed in the Department of Ear, Nose & Throat (ENT), "Victor Babes" University of Medicine and Pharmacy, Timisoara, Romania. The patient addressed to our Clinic with intense odynophagia, referred otalgia, sore throat, fever periods and weight loss. During the ENT clinical exam, we identified an enlarged left tonsil, partially covered with yellowish-white plaque, with ulceration and bleeding spots localized on tonsillar inferior pole. A high suspicion of tonsillar malignancy was raised, and a biopsy was performed revealing extrapulmonary TB. Taking into consideration the normal chest X-ray, a primary tonsillar TB diagnosis was established. The patient was addressed to Department of Pneumophthisiology for anti-tuberculous therapy for six months. At the end of the treatment, the patient was symptoms-free.


Assuntos
Tuberculose/diagnóstico , Adulto , Humanos , Masculino , Tuberculose/patologia
11.
Rom J Morphol Embryol ; 60(4): 1199-1206, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-32239095

RESUMO

Multiple primary tumors (MPT) represent an important factor affecting the survival of some patients. They present an incidence of about 0.7-11% of all carcinomas developing in any region of the human body, being either synchronous or metachronous. These tumors raise problems of differential diagnosis, with tumoral relapses and distance metastases; also, they involve problems related to chemotherapy, radiotherapy and surgical treatment. In the present paper, we studied a group of 902 patients diagnosed with head and neck tumors admitted to the Ear, Nose & Throat (ENT) Clinic of the Emergency County Hospital of Timisoara, Romania, and we identified 12 patients with metachronous tumors, representing 1.33% of the hospitalized cases. Of the 12 patients with metachronous tumors, a single case was a woman, the other 11 cases being diagnosed in men. Regarding the age of the patients with metachronous tumors, only a single patient was aged less than 60 years old; most of them (nine patients) were aged between 60 and 69 years old, while two patients were aged over 70 years old. Nine patients were alcohol consumers, while 10 (83.33%) patients were smokers of about 20 cigarettes∕day. All the metachronous tumors localized in the head and neck were squamous cell carcinomas. The second primary tumor was identified in the prostate, kidneys, ureter, lungs, salivary gland, thyroid gland, meninges, colon, rectum or skin.


Assuntos
Neoplasias de Cabeça e Pescoço/diagnóstico , Idoso , Feminino , Neoplasias de Cabeça e Pescoço/patologia , Humanos , Imuno-Histoquímica , Masculino , Pessoa de Meia-Idade
12.
Rom J Morphol Embryol ; 59(3): 825-831, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30534822

RESUMO

INTRODUCTION: Osteonecrosis of the jaw (ONJ) is a multifactorial condition associated with bisphosphonates (BPs) treatment, head and neck irradiation, malignancy, chemotherapy, periodontal disease or trauma. The first cases of BPs-related ONJ (BRONJ) were reported over a decade ago. PATIENTS, MATERIALS AND METHODS: The study was retrospective and analyzed archived material. The study included 38 patients diagnosed and treated in the Clinic of Oral and Maxillofacial Surgery, Emergency City Hospital, Timisoara, Romania, for BRONJ, between 2013 and 2016. For all the cases were noted gender, age, localization of osteonecrosis, therapeutic indications for BPs (osteoporosis or malignancy), history of radiotherapy or chemotherapy, presence of bone metastases. If the treatment consisted in surgical removal of necrotic bone, the surgically removed specimens were sent to Service of Pathology of the same Hospital. The excised specimens were prepared with routine histological technique. RESULTS: All the patients included in the current study were diagnosed with BRONJ. The patient history and clinical characteristics were the most useful diagnostic methods. Radiographic changes are not significant in early stages of osteonecrosis. The prevalence of BPs-associated ONJ is higher between 55-74 years old. CONCLUSIONS: ONJ is an important complication of BPs medication. The majority of affected patients develop this complication after dentoalveorar surgery, especially after dental extraction. Therefore, a good state of dental health is one of the most important directives when dealing with potential candidates for BPs therapy.


Assuntos
Osteonecrose da Arcada Osseodentária Associada a Difosfonatos/epidemiologia , Osteoporose/induzido quimicamente , Idoso , Idoso de 80 Anos ou mais , Osteonecrose da Arcada Osseodentária Associada a Difosfonatos/patologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
13.
Rom J Morphol Embryol ; 59(3): 989-996, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30534845

RESUMO

Basal cell carcinoma (BCC) is the most common locally invasive malignant epidermal neoplasm. It is generally a tumor that runs a slow progressive course and can usually be cured by surgery. Basosquamous carcinoma is considered by some authors a rare subtype of BCC, while others describe it as independent tumor with different evolution from BCC. The aim of the study was to present a very interesting case of initially otherwise ordinary BCC that during its repeated and extensive relapses changed its histopathology in a basosquamous carcinoma, despite the free surgical margins and leading to major surgeries with loss of right eye. We present a case of 75-year-old male diagnosed in 2008 with a tumor located in the right naso-orbital region. The patient underwent surgical treatment, the histopathology being consistent with BCC. He presented recurrences of the tumor in 2009 and 2010 that were excised at approximately 9 and 16 months, respectively, from the first intervention. In 2010, the surgical procedure was radical, with removal of the tumor and the entire right superior eyelid. This approach proved to have negative side effects over the right eye in time. Therefore, after two months, a complete exenteration of the right orbit was necessary. The tumor recurred again for three times, after 20, 30 and 42 months from the first intervention and every time surgical treatment was applied. The microscopic inspection of the biopsies showed similarities between recurrences and initial tumor. In 2013, after 57 months from the first intervention, the patient was readmitted with a lesion in the same region that was excised but that time the histopathology differed from the previous, the tumor being composed of sheets of achromic epithelioid cells, with vesicular nuclei and prominent, eosinophilic nucleoli. The tumor cells were positive for pan-cytokeratin AE1∕AE3 and negative for S100 protein, human melanoma black 45 (HMB45) and vimentin that sustained the diagnosis of basosquamous carcinoma. The paper presented an interesting case with different histopathological features from a recurrence to other, with important implication in diagnosis and prognosis. The transformation of BCC into basosquamous carcinoma sustain that the basosquamous carcinoma is better a rare, aggressive variant of BCC, than an individual lesion.


Assuntos
Carcinoma Basocelular/diagnóstico , Carcinoma Basoescamoso/diagnóstico , Idoso , Carcinoma Basocelular/patologia , Carcinoma Basoescamoso/patologia , Humanos , Masculino
14.
Rom J Morphol Embryol ; 59(4): 1263-1268, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30845310

RESUMO

We report a case of rare benign tumor of the larynx - amyloidosis of larynx - in a 52-year-old female who presented to the Department of Ear, Nose and Throat (ENT), Timisoara Municipal Hospital, Romania, with dysphonia. The patient's first presentation was in June 2012, with a polypoid formation localized on left vocal cord. The patient underwent a suspended microlaryngoscopy (SM) with tumor removal followed by histopathological examination, which revealed a laryngeal amyloidosis. The tumor recurred in 2013, 2014, 2016, 2017 and 2018. The patient underwent tracheotomy, followed by SM with endoscopic CO2 laser procedures, in order to remove the tumor and to ensure the airway. The follow-up was for six years. In May 2018, amyloid was located in subglottis, glottis and left false vocal fold. The patient needed five revision surgical procedures. The patient did not developed systemic amyloidosis during the follow-up period.


Assuntos
Amiloidose/patologia , Neoplasias Laríngeas/patologia , Laringe/patologia , Arteríolas/patologia , Feminino , Humanos , Neoplasias Laríngeas/irrigação sanguínea , Neoplasias Laríngeas/cirurgia , Laringe/irrigação sanguínea , Pessoa de Meia-Idade , Células Estromais/patologia , Linfócitos T/patologia
15.
Biochem Genet ; 55(4): 281-290, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28070693

RESUMO

One of the main causes of death in the world is lung cancer. According to the World Health Organization, the annual incidence of lung cancer increases significantly. Moreover, lung cancer accounts for one of the highest mortality rates, mainly due to late detection. Numerous studies have been conducted in order to identify new biomarkers for early diagnosis and for monitoring and evaluation of lung cancer stages. An ideal biomarker candidate is represented by the analysis of microRNAs expression. In this paper, we want to summarize microRNAs expressions in lung cancer. We also want to present the expression of microRNAs depending on the evolution of lung cancer. For this study, we analyzed the studies available in scientific databases, such as PubMed and Scopus. The studies were selected using the search keywords "microRNAs expression," "lung cancer," and "genetic biomarkers." The most significant articles were selected for the study, following rigorous analysis. To evaluate and monitor lung cancer, the expression of microRNAs may be used successfully due to increased specificity and selectivity. However, further studies are needed on the assignment and validation of microRNAs for each type of lung cancer, respectively, for each stage of evolution.


Assuntos
Biomarcadores Tumorais/genética , Detecção Precoce de Câncer , Neoplasias Pulmonares/genética , MicroRNAs/genética , Regulação Neoplásica da Expressão Gênica , Humanos , Neoplasias Pulmonares/diagnóstico , Neoplasias Pulmonares/patologia
16.
Rom J Morphol Embryol ; 58(4): 1541-1547, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29556655

RESUMO

Rare naso-sinonasal lesions represent a diagnostic challenge for clinicians because of the paucity of the cases and similarities with other more frequently sinonasal pathologies. The aim of the study was to present five rare sinonasal lesions in order to emphasize their symptomatology, imaging aspects, histopathological features, algorithms of diagnosis, and strategies of treatment and importance of teamwork between clinicians, pathologists and radiologists for a correct and prompt diagnosis. CASE PRESENTATIONS: The cases were represented by patients with nasal sarcoidosis, nasal primitive neuroectodermal tumors, sinonasal mucosal melanoma, sinonasal plasmacytomas and nasal-type extranodal natural killer (NK) T-cell lymphoma. All the patients were biopsied in the Department of ENT (Ear, Nose and Throat), "Victor Babes" University of Medicine and Pharmacy, Timisoara, Romania, and the diagnosis was made using routine and immunohistochemical (IHC) stainings. The patients with sinonasal melanoma and the patient with extranodal NK T-cell lymphoma died in few months after diagnosis, despite treatment. Rare sinonasal lesions share similar symptomatology and imaging aspects with other, more frequently diagnosed entities. The cases reported in this paper showed the same pattern as those presented in other studies; the symptomatology, diagnosis, treatment and prognosis were the same. Clinical examination, imaging studies and routine and IHC markers guides us to the right diagnosis that should be prompt because of the prognosis of some tumors. The treatment has a few characteristics: surgery excision within safe margins, working with other specialties (oncology, radiotherapy, hematology, nephrology, pneumology), follow-up and correctly informing the patient being mandatory. CONCLUSIONS: In this paper, there were presented five interesting cases of rare sinonasal lesions, in order to highlight the importance of teamwork for a quick and correct diagnosis.


Assuntos
Neoplasias Nasais/diagnóstico , Doenças Raras/diagnóstico , Adulto , Idoso , Feminino , Humanos , Masculino , Neoplasias Nasais/patologia , Doenças Raras/patologia
17.
Rom J Morphol Embryol ; 58(4): 1579-1588, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29556660

RESUMO

Extranodal natural killer (NK)÷T-cell lymphomas, nasal type are rare and aggressive non-Hodgkin's lymphomas (NHLs), with unknown etiology, rapid evolution and poor prognosis, due to midline tissue destruction and rapid spreading of the tumor. These lymphomas occur commonly in the nasal cavity and upper aerodigestive tract, but can also present involvement of the skin, salivary gland, and testis. We describe a case of nasal type T-cell NHL involving the nasal cavity and determining right thigh cutaneous metastases in a 47-year-old female associated with liver comorbidities and occupational dust exposure. The patient was suffering from chronic type C hepatitis and cirrhosis and she has been occupationally exposed to metal dust for 10 years. Clinical and laboratory investigations were performed. Essential for diagnosis and treatment protocol was nasal endoscopy and biopsy of nasal and cutaneous lesions. The histopathological exam was consistent with NK÷T-cell lymphoma. Patient was diagnosed in Ann Arbor stage IVA. Chemotherapy was initiated with Bleomycin, Etoposide, Adriamycin (Doxorubicin), Cyclophosphamide, Oncovin (Vincristine), Procarbazine and Prednisone, but it was stopped after two cycles because of the liver condition. The treatment plan also included radiotherapy, but soon after initiation, the patient died because of a liver complication. We present a rare case of extranodal NK÷T-cell lymphoma, nasal type, with cutaneous involvement to which the treatment could not be properly applied because of the late diagnosis and liver comorbidities.


Assuntos
Poeira/análise , Exposição Ambiental/efeitos adversos , Hepatite C/complicações , Células Matadoras Naturais/metabolismo , Linfoma de Células T/etiologia , Metais/análise , Doença Crônica , Feminino , Hepatite C/patologia , Humanos , Células Matadoras Naturais/patologia , Linfoma de Células T/patologia , Pessoa de Meia-Idade
18.
Rom J Morphol Embryol ; 56(2): 613-8, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26193239

RESUMO

The authors present four cases of Wegener's granulomatosis patients with multiorganic manifestation forms, but with a prevalent involvement in upper-airway. Granulomatosis diseases of the nose include bacterial infections (rhinoscleroma, tuberculosis, syphilis, lupus, and leprosy), fungal infections (rhinosporidiosis, aspergillosis, mucormycosis, candidosis, histoplasmosis, and blastomycosis) and diseases with unspecified etiology (Wegener's granulomatosis, mediofacial malignant granuloma, and sarcoidosis). We consider an interesting experience regarding Wegener's granulomatosis due to its rarity, being an autoimmune systemic disease, with continuous evolution and multiorganic involvement. The beginning of the disease is like upper airway affection, a kind of "persistent cold", being difficult to differentiate it from a common cold in the head, with a prolonged evolution. It is important to mention that we establish the diagnosis of Wegener's granulomatosis starting with Ear Nose and Throat (ENT) clinical exam, followed by other tests and investigations realized in our Clinic and completed with specialty tests (nephrology, internal medicine and dermatology), meaning that we need a close cooperation with these medical specialties. All the patients presented multiorganic involvement. Notably significant for our four cases is the prolonged evolution in a stable condition in one patient.


Assuntos
Granulomatose com Poliangiite/patologia , Nariz/patologia , Adulto , Endoscopia , Feminino , Glomerulonefrite/patologia , Humanos , Inflamação/patologia , Laringe/patologia , Masculino , Pessoa de Meia-Idade , Pele/patologia
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