ABSTRACT
Resumen Objetivo Describir el desarrollo de un carcinoma oral de células escamosas, en el que la irritación mecánica crónica aparenta tomar un rol protagonista en la carcinogénesis. Caso clínico Un paciente de 41 años de edad, argentino, con antecedentes de fisura labio alvéolo palatina, diabetes mellitus, convulsiones, consumo de cocaína y marihuana, enolismo crónico y tabaquismo, acude al Servicio de Odontología del Hospital Central de Mendoza para la evaluación de una úlcera dolorosa en el dorso de su lengua, de varias semanas de evolución, en íntima relación con un primer premolar superior derecho y una pieza supernumeraria. Se realizó una biopsia y de la anatomía patológica resultó el diagnóstico de carcinoma oral de células escamosas. Se ofreció al paciente posibles tratamientos que rechazó, por lo que se inició terapia paliativa y sintomática. Al avanzar su mal estado general, falleció por complicaciones relacionadas a la deglución. Si bien no está definido el rol de la irritación mecánica crónica en la etiología de la carcinogénesis, ejerce un efecto promotor del daño causado por el tabaco y el alcohol. Si bien el paciente era fumador y bebía alcohol, se puede observar que desarrolló un carcinoma de células escamosas en evidente relación a un trauma crónico, ya que la lesión en la cara dorsal de lengua está en íntimo contacto con el factor irritante. Aun así, la evidencia actual disponible es limitada y discute el protagonismo del trauma crónico por lo que se necesitan más estudios para evaluar y definir la posible relación causal de la irritación mecánica crónica en la carcinogénesis.
Abstract Aim To describe the development of an oral squamous cell carcinoma, in which chronic mechanical irritation appears to play a significant role in carcinogenesis. Clinical case A 41-year-old patient, from Argentina, with a history of cleft lip and palate, diabetes mellitus, seizures, cocaine and cannabis use, chronic alcoholism and smoking, comes to the Dentistry Service of the Central Hospital for the evaluation of a painful ulcer on the dorsum of the tongue, which had been developing for several weeks, in close relation to an upper right first premolar and a supernumerary tooth. A biopsy was performed, and the pathological anatomy resulted in the diagnosis of oral squamous cell carcinoma. Possible treatments were offered to the patient, which he rejected, so palliative and symptomatic therapy was initiated instead. As his poor general condition progressed, he died due to complications related to swallowing. Although the role of chronic mechanical irritation in the development of carcinogenesis is not yet fully defined, it has been shown to have a promoting effect on the damage caused by tobacco and alcohol. Although the patient was a smoker and drank alcohol, it can be observed that he developed a squamous cell carcinoma in obvious relation to a chronic trauma, since the lesion develops on the dorsal face of the tongue in close contact with the irritant factor. Still, the current evidence available is limited and discusses the role of chronic trauma, so more studies are needed to evaluate and define the possible causal relationship of chronic mechanical irritation in the development of carcinogenesis.
ABSTRACT
Objetivo: Describir el desarrollo de un carcinoma oral de células escamosas, en el que la irritación mecánica crónica aparenta tomar un rol protagonista en la carcinogénesis. Caso clínico: Un paciente de 41 años de edad, argen- tino, con antecedentes de fisura labio alvéolo palatina, diabe- tes mellitus, convulsiones, consumo de cocaína y marihuana, enolismo crónico y tabaquismo, acude al Servicio de Odonto- logía del Hospital Central de Mendoza para la evaluación de una úlcera dolorosa en el dorso de su lengua, de varias sema- nas de evolución, en íntima relación con un primer premolar superior derecho y una pieza supernumeraria. Se realizó una biopsia y de la anatomía patológica resultó el diagnóstico de carcinoma oral de células escamosas. Se ofreció al paciente posibles tratamientos que rechazó, por lo que se inició terapia paliativa y sintomática. Al avanzar su mal estado general, fa- lleció por complicaciones relacionadas a la deglución. Si bien no está definido el rol de la irritación mecánica crónica en la etiología de la carcinogénesis, ejerce un efecto promotor del daño causado por el tabaco y el alcohol. Si bien el paciente era fumador y bebía alcohol, se puede observar que desarrolló un carcinoma de células escamosas en evidente relación a un trauma crónico, ya que la lesión en la cara dorsal de lengua está en íntimo contacto con el factor irritante. Aun así, la evi- dencia actual disponible es limitada y discute el protagonismo del trauma crónico por lo que se necesitan más estudios para evaluar y definir la posible relación causal de la irritación me- cánica crónica en la carcinogénesis (AU)
Aim: To describe the development of an oral squamous cell carcinoma, in which chronic mechanical irritation ap- pears to play a significant role in carcinogenesis. Clinical case: A 41-year-old patient, from Argenti- na, with a history of cleft lip and palate, diabetes mellitus, seizures, cocaine and cannabis use, chronic alcoholism and smoking, comes to the Dentistry Service of the Central Hospi- tal for the evaluation of a painful ulcer on the dorsum of the tongue, which had been developing for several weeks, in close relation to an upper right first premolar and a supernumerary tooth. A biopsy was performed, and the pathological anatomy resulted in the diagnosis of oral squamous cell carcinoma. Possible treatments were offered to the patient, which he re- jected, so palliative and symptomatic therapy was initiated instead. As his poor general condition progressed, he died due to complications related to swallowing. Although the role of chronic mechanical irritation in the development of carcino- genesis is not yet fully defined, it has been shown to have a promoting effect on the damage caused by tobacco and alco- hol. Although the patient was a smoker and drank alcohol, it can be observed that he developed a squamous cell carcinoma in obvious relation to a chronic trauma, since the lesion devel- ops on the dorsal face of the tongue in close contact with the irritant factor. Still, the current evidence available is limited and discusses the role of chronic trauma, so more studies are needed to evaluate and define the possible causal relation- ship of chronic mechanical irritation in the development of carcinogenesis (AU)
Subject(s)
Humans , Male , Adult , Tongue/injuries , Carcinoma, Squamous Cell/etiology , Argentina , Wounds and Injuries , Chronic Disease , Risk Factors , Dental Service, HospitalABSTRACT
Aims: The aim of this manuscript is to present innovative applications of the BTK model that can potentially contribute additional aspects of safety evaluations for a broader range of products and materials intended for prolonged skin contact. Study Design and Methodology: The basic BTK protocol is one 6-h exposure per day for 4 days. Modification to the basic protocol were made for individual studies, as needed. Results: Studies using fabrics, tissues and films indicate the BTK may be well suited to evaluating these materials for skin compatibility. The BTK test discriminated between; different fabrics, drying methods of the same fabric, similar toilet tissue products, and two similar topsheet films used as coverings on the surface of a range of absorbent consumer products. The method was used successfully to measure the transfer of lotion, and lotion skin benefits from lotioned absorbent products. Conclusion: Studies demonstrate that the utility of the BTK goes beyond the original intent of evaluating the potential skin effects of feminine protection products. The ability to compare fabrics, tissues and films indicate the test model may be useful in the development broad range of absorbent consumer products and in textile development. The utility of the model in measuring the transfer of lotion and other materials from products to the skin surface has the potential to fill an important gap in the development of quantitative exposure assessments. Added endpoint measures, such as enhanced visual scoring and sensory effects further increase the ability to differentiate between very similar products without requiring other protocol modifications.
ABSTRACT
The authors present the one case of a 22-year-old man admitted with intermittent quadriparesis and respiratory difficulty. On investigation, atlantoaxial instability and upper cervical cord compression due to abnormal soft tissue were revealed. We have performed transoral decompression and biopsy, and then posterior transarticular facet screw fixation with interspinous wiring and fusion. We could obtain immediate and long-term postoperative stability with Philadelphia collar only. The pathologic examination reveald connective soft tissue hypertrophy due to chronic mechanical irritation.