Giant epidermal inclusion cyst of the thyroid: a rare occurrence

Epidermal inclusion cyst (EIC) of the thyroid is extremely rare in the clinical practice. A handful of cases have been documented in the past in the world literature. A giant EIC of the thyroid is hitherto unreported. This lesion may arise from the squamous metaplasia of the thyroid follicular cells. Though non-neoplastic, giant forms can cause compression of the vital structures of the neck. In the present case, we have described a giant epidermal inclusion cyst successfully managed with surgical management.

Study of the relationship between vitamin D deficiency, sunlight incidence and skeletal/extra skeletaldiseases

It is estimated that more than 1 billion people worldwide have vitamin D insufficiency or deficiency. Vitamin D participates in bone mineralization, and is therefore important in osteoporosis, osteomalacia and rickets prevention. However, vitamin D deficiency could also be associated with several other pathologies. The present study aimed to investigate the relationships between vitamin D deficiency and vitamin D deficiency-related disorders in patients. In addition, this study aims to verify if countries with low solar incidence have higher extraskeletal disease death rates when compared to countries with high solar incidence. The vitamin D concentrations were obtained from the Heart Hospital database (Natal/Brazil). The relationship between solar incidenceand death rate for vitamin D deficiency-related disorders was verified. Death rate data were extracted from the 'World Life Expectancy' repository and data about solar incidence were obtained from NASA's Surface Meteorology and Solar Energy project. Thesedata were statistically processed with IBM SPSS v23.0 software and R programming language. Our results showed that patients with vitamin D insufficiency/deficiency showed significantly more bone diseases, thyroid diseases, hypercholesterolemy, hypertriglyceridemia, cancers, diabetes, hepatobiliary diseases, and urinary system diseases. Moreover, countries with high solar incidence have low cancer and multiple sclerosis death rates. This work suggests the participation of vitamin D and sunlight incidence inseveral diseases.

Anatomical variations of thyroid glands in northeastern-Thai embalmed cadavers / Variaciones anatómicas de la glándula tiroides en cadáveres embalsamados del noreste de Tailandia

SUMMARY: This study aimed to investigate the variation patterns of thyroid glands in embalmed cadavers donated for anatomical studying and research in the northeastern part of Thailand. The crossed-sectional descriptive study was applied to systemically observe the thyroid gland in abnormality of 45 embalmed cadavers. The study was conducted in the Anatomy Laboratory of College of Medicine and Public Health, Ubon Ratchathani University. The indications of thyroid gland abnormalities were recorded by photographs before classification of data used further in a descriptive analysis using SPSS. The results showed that 8 of the 45 cadavers (17.8 %) were observed with thyroid gland abnormality (4 males; 8.9 % and 4 females; 8.9 %). Such variations could be classified into 3 types; pyramidal lobe (8.8 %), levator glandulae thyroideae (2.2 %) and the co-existing of levator glandulae thyroideae (8.8 %), respectively. The thyroid gland abnormality observed in this study was mainly related to many previous reports. Besides the number of thyroid variations are a crucial indication of thyroid gland abnormality recurring, these gland abnormalities are susceptible to the operation of radiology physicians in thyroidectomy and tracheostomy.

RESUMEN: El objetivo de este estudio fue investigar los patrones de variación de la glándula tiroides en cadáveres embalsamados donados para estudios e investigaciones anatómicas en el noreste de Tailandia. El estudio transversal descriptivo se aplicó para observar sistémicamente la glándula tiroides en caso de anomalía en 45 cadáveres embalsamados. El estudio se realizó en el Laboratorio de Anatomía de la Facultad de Medicina y Salud Pública de la Universidad de Ubon Ratchathani. Las anomalías de la glándula tiroides se registraron mediante fotografías antes de la clasificación de los datos y se utilizaron en un análisis descriptivo con SPSS. Los resultados mostraron que en 8 de los 45 cadáveres (17,8 %) se observaron anomalías de la glándula tiroides (4 hombres; 8,9 % y 4 mujeres; 8,9 %). Tales variaciones podrían ser clasificadas en 3 tipos: lóbulo piramidal (8,8 %), músculo elevador de la glándula tiroides (2,2 %) y la coexistencia del músculo elevador de la glándula tiroides (8,8 %), respectivamente. La anomalía de la glándula tiroides observada en este estudio se relacionó principalmente con informes anteriores. Además, la cantidad de variaciones tiroideas es una indicación crucial de la anomalía de la glándula tiroides que se repite, esta anomalía de la glándula es susceptible a las intervenciones de los médicos radiólogos en la tiroidectomía y la traqueotomía.

Higher prevalence of permanent congenital hypothyroidism in the Southwest of Iran mostly caused by dyshormonogenesis: a five-year follow-up study

ABSTRACT Objective: The incidence of congenital hypothyroidism (CH) varies globally. This 5-year study aimed to determine the prevalence of permanent CH in the southwest of Iran. Materials and methods: Between January 2007 and December 2009, all newborns in Ahvaz, the biggest city in the southwest of Iran, were screened for CH using a heel-prick sample for thyrotropin (TSH) levels. Subjects with TSH ≥ 5 mU/L were evaluated for T4-TSH. Infants with T4 < 6.5 µg/dL, TSH > 10 mU/L, and normal T4 but persistent (> 60 days) high TSH were considered to have CH. After the third birthday, treatment was discontinued, and T4-TSH was reevaluated; subjects with TSH ≥ 10 mU/L were investigated using thyroid Tc99 scintigraphy (TS). Based on TS, they were classified as normal, dysgenetic, or athyretic (agenesis). Results: Screening was performed for 86,567 neonates, and 194 were confirmed to have CH (100 males; F/M = 0.94; overall incidence 1:446). After the third birthday, reevaluation was performed in all (except 18 that were not accessible). From 176 patients, 81 (46%) were diagnosed with permanent CH, and 95 were discharged as transient. Considering the same percentage in the lost cases, the prevalence of permanent CH was found to be 1:970. TS performed for 53 of the permanent subjects found agenesis/dysgenesis in 25 (F:M = 15:10) and a normal result in 28 (F:M = 11:17), indicating dyshormonogenesis as the cause in more than 50% of subjects. Conclusions: The incidence of CH in this area was found to be higher than that in other countries but less than the incidence rate reported in central Iran. The large number of transient cases of CH suggests environmental or maternal causes for the incidence rather than a genetic basis.

Microcalcificaciones y focos ecogénicos puntiformes, ¿qué tan bien sabemos lo que estamos viendo? / Microcalcifications and punctate echogenic foci, how well do we know what we are seeing?

Resumen: La presencia de microcalcificaciones en nódulos tiroideos es un signo muy específico de malignidad, al corresponder a cuerpos de Psammoma. No existen suficientes estudios que demuestren una correlación entre su presencia histológica y su aspecto ecográfico real. Materiales y Métodos: Se seleccionaron todos los nódulos con tamaño mayor a 3 cm puncionados en el Hospital Clínico Universidad Católica entre los años 2010-2015 y se clasificó el aspecto ecográfico según la presencia de 3 tipos de focos ecogénicos con una definición más estricta a lo usual. Se correlacionó lo anterior con hallazgos en biopsias. Resultados: 44 nódulos correspondieron a cáncer papilar de tiroides. Hubo relación estadísticamente significativa entre una nueva definición ecográfica de las microcalcificaciones (focos ecogénicos puntiformes) y la presencia histológica de cuerpos de psamomma. Discusión: Habría una buena correlación entre una definición más estricta y la presencia real de microcalcificaciones en histología, mejorando la alta tasa de sobrediagnóstico advertido recientemente por algunos autores.

Abstract: The presence of microcalcifications in thyroid nodules is a very specific sign of malignancy, as it corresponds to Psammoma bodies. There are not enough studies that demonstrate a correlation between their histological presence and their actual ultrasound appearance. Materials and Methods: All nodules larger than 3 cm punctured at the Universidad Católica Clinical Hospital between 2010-2015 were selected, and the sonographic appearance was classified according to the presence of 3 types of echogenic foci according to a stricter definition than usual. The above was correlated with findings in biopsies. Results: 44 nodules corresponded to papillary thyroid cancer. There was a statistically significant relationship between a new ultrasound definition of the microcalcifications (punctate echogenic foci) and the histological presence of psamomma bodies. Discussion: There would be a good correlation between a stricter definition and the actual presence of microcalcifications in histology, improving the high rate of over diagnosis recently noticed by some authors.

The c.63A>G polymorphism in the NKX2.5 gene is associated with thyroid hypoplasia in children with thyroid dysgenesis

Objective To search for genetic alteration in NKX2.5 gene in patients presenting both congenital heart disease (CHD) and TD. Subjects and methods Individual phenotypes were carefully analyzed in 86 children with thyroid dysgenesis (TD) using thyroid function tests, scintigraphy, ultrasound and echocardiography. DNA was extracted and NKX2.5 gene coding region was amplified by polymerase chain reaction (PCR) and sequenced. Results CHD were found in 8.1% of patients with TD. The mutation screening revealed two known polymorphisms in patients with isolated TD or TD associated with CHD. None of them are predicted to result in codon change in conserved domain. The c.63A>G polymorphism was detected in 54/86 patients (49 with isolated TD and 5 with TD combined with CHD). There was a significant association of c.63A>G polymorphism with hypoplasia (p < 0.036). The c.541G>A polymorphism was observed in only one patient with isolated thyroid hypoplasia. Conclusion NKX2.5 mutations were not found. The c.63A>G polymorphism might be associated with thyroid hypoplasia.

Agenesis of Isthmus of thyroid gland with presence of pyramidal lobe and levator glandulae thyroideae.

A wide range of morphological and developmental variations of thyroid gland like hypoplasia, ectopic thyroid tissue, hemiagenesis or agenesis of thyroid gland has been reported. Out of these agenesis of the thyroid isthmus is a very rare congenital anomaly. Thyroid isthmus agenesis does not manifest clinical symptoms, and it can be confused with other thyroid pathologies. Also the presence of levator glandulae thyroideae and its anatomical variations gain importance in the pathologies which are related to thyroid gland and their treatment modalities. We hereby, report the absence of isthmus and presence of levator glandulae thyroideae and pyramidal lobe in a middle aged male cadaver. The present case report is an attempt to highlight the implications of variation of thyroid gland from diagnostic, phylogenetic and functional perspectives.

Ectopic Thyroid Tissue Co-Existing with a Eutopic Thyroid.

Ectopic thyroid tissue, a developmental defect of thyroid gland, is met with rarity in day to day clinical practice. The diagnosis of ectopic thyroid demands a meticulous clinical examination and use of different imaging modalities. We are here reporting a case which presented as an anterior neck swelling, moving with deglutition, and also on and off dysphagia. After necessary investigations she underwent surgery and then the diagnosis of ectopic thyroid was made which was later confirmed with biopsy report which was suggestive of lymphocytic thyroiditis.

Tireoidite autoimune na criança e no adolescente / Autoimmune thyroiditis in children and adolescents

Objetivo: Revisão da literatura sobre a tireoidite de Hashimoto no universo das doenças autoimunes em crianças e adolescentes. Fontes: MEDLINE, utilizando os termos tireoidite, doença de Hashimoto, genética da autoimunidade tireoidiana. Resumo: Doenças tireoidianas autoimunes são doenças endócrinas frequentes da criança e do adolescente. Genes como antígeno humano leucocitário (HLA), antígeno-4 associado ao linfócito T citotóxico (CTLA-4), a proteína tirosina-fosfatase 22 (PTPN22) e os genes específicos da glândula tireoide, como o receptor do TSH (TSHR) e tireoglobulina (Tg) afetam a resposta imunológica da tireoide. A tireoidite autoimune pode apresentar funções tireoidianas desde eutireoidismo até hipotireoidismo evidente, além de um quadro inicial, transitório, de hipertireoidismo e tem sido associada a doenças autoimunes como diabetes, doenças reumáticas, doença celíaca. Função tiroidiana e associações com outras doenças autoimunes são destacados...

Perfil Sistêmico e Manifestações Bucais em Pacientes com Hipotireoidismo / Perfil sistémico y manifestaciones bucales en pacientes con hipotiroidismo / Profile systemic and oral manifestations in patients with hypothyroidism

O hipotireoidismo é uma desordem endócrina, de natureza sistêmica caracterizada pela disfunção na glândula tireóide. Os hormônios tireoidianos T3 e T4 são necessários para suprir funções orgânicas normais do organismo. Desta forma, distúrbios na secreção de T3 e T4 podem estar associados a alterações no sistema estomatognático. Dentre essas alterações encontram-se hipoplasia condilar, atresia maxilar ou mandibular, hipodesenvolvimento da mandíbula, prognatismo maxilar, hipoplasia de esmalte e dentina, taurodontia e retardo na erupção dentária e no desenvolvimento radicular. Desta forma é imprescindível que o cirurgião dentista tenha conhecimento sobre as manifestações locais ou sistêmicas associadas a esta desordem endócrina. O objetivo deste artigo é abordar as alterações sistêmicas e bucais em pacientes acometidos pelo hipotireoidismo, bem como os cuidados e condutas terapêutica que podem ser adotados durante o tratamento odontológico. A coleta de dados foi realizada através da seleção de artigos publicados a cerca das manifestações bucais em pacientes acometidos por hipotireoidismo nos principais bancos de dados, Bireme, Medline e Scielo. O hipotireoidismo é uma patologia sistêmica comum, que ocasionalmente apresenta manifestações bucais e necessitam de cuidados especiais durante tratamentos odontológicos. A interação medicamentosa frente à pacientes em tratamento do hipotireoidismo também deve ser considerada, uma vez que medicações comumente prescritas na odontologia podem promover reações adversas. Desta forma, é imprescindível que o cirurgião-dentista tenha conhecimento sobre os procedimentos adequados na terapêutica de pacientes com essa síndrome(AU)

El hipotiroidismo es un trastorno endocrino que se caracteriza por el carácter sistémico de la disfunción de la glándula tiroides. Las hormonas tiroideas T3 y T4 son necesarias para cumplir con las funciones normales del cuerpo físico. Por lo tanto, alteraciones en la secreción de T3 y T4 pueden estar asociadas con cambios en el sistema estomatognático. Entre estos cambios se presentan la hipoplasia condilar, la atresia mandibular o maxilar, la mandíbula subdesarrollada, la hipoplasia del esmalte y la dentina, el taurodontismo y el retraso de la dentición y del desarrollo radicular. Por lo tanto, es esencial que el dentista tenga el conocimiento de las manifestaciones locales o sistémicas asociadas con este trastorno endocrino. El objetivo de este trabajo es abordar los cambios sistémicos y bucales en los pacientes afectados por el hipotiroidismo, así como el mejor trato y cuidado que deben adoptarse durante el tratamiento dental. La recolección de datos se llevó a cabo a través de la selección de artículos publicados sobre las manifestaciones bucales en los pacientes afectados por hipotiroidismo en grandes bases de datos como Bireme, Scielo y Medline. El hipotiroidismo es una enfermedad sistémica común que ocasionalmente presenta manifestaciones bucales que deben ser de domino del odontólogo, ya que son pacientes que necesitan de cuidados especiales durante los tratamientos odontológicos. También debe ser considerada la interacción medicamentosa en estos pacientes, ya que medicamentos comúnmente prescritos en odontología pueden provocar reacciones adversas. Es imprescindible que el cirujano dentista tenga conocimientos sobre los procedimientos adecuados en el tratamiento de pacientes con hipotiroidismo(AU)

The hypothyroidism is an endocrine disorder characterized by the systemic character of the thyroid gland dysfunction. The T3 and T4 thyroid hormones are necessary to fulfill with the normal functions of the physical body. Thus, the alterations in the T3 and T4 secretion may be associated with changes in the stomatognathic system. Among the changes are included the condylar hypoplasia, the mandibular or maxillary atresia, the underdeveloped mandible, the hypoplasia of the enamel and the dentine, the taurodontism and the delay of dentition as well as the radicular development. Thus, it is essential that stomatologist know on the local or systemic manifestations associated with this endocrine disorder. The aim of present paper is to approach the systemic and oral changes in patients presenting with hypothyroidism, as well as the better management and care applied during the dental treatment. The data collection was thorough the selection of articles published on the oral manifestations in patients presenting with hypothyroidism in large databases like Bireme, Scielo and Medline. The hypothyroidism is a common system disease that occasionally have oral manifestations known by the stomatologists since they are patients needing special care during the stomatologic treatments. Also, must to be considered the drug interaction in these patients, since the drugs regularly prescribed in stomatology may to provoke adverse reactions. It is necessary that surgeon knows on the appropriate procedures in the treatment of hypothyroidism patients(AU)

Lateral thyroid ectopia

We report here a rare case of lateral ectopia of thyroid without orthotopic thyroid tissue in an Indian teenager, who was referred to our department for a thyroid scintigraphy. Technetium Pertechnetate [[99]mTcO[4][-]] scan showed uptake in laterally placed soft tissue structure along with functioning thyroid tissue in high anterior midline neck region in line with thyroglossal tract. There is no uptake in the normal anatomical thyroid bed region. Ultrasound study of the neck confirmed a soft tissue structure on the right of midline appearing coarse in echotexture with internal vascularity and absent native thyroid gland. Ectopic thyroid tissue lateral to midline associated with thyroglossal tract remnant and absence of orthotopic thyroid tissue is known to be very rare

Thyroid hemiagenesis: case report and review of literature

Thyroid hemiagenesis is a rare embryological condition in which the left lobe is usually absent. The remaining thyroid lobe may present as benign adenoma, multinodular goiter, hyperthyroidism, chronic thyroiditis, hypothyroidism and rarely carcinoma. The most common pathology involved in thyroid hemiagenesis is hyperthyroidism. This report probably represents the first ever reported case of thyroid hemiagenesis from Kuwait. This 56-year-old Kuwaiti male presented with a left thyroid swelling, a history of progressive fatigue, constipation and weight gain, and exercise intolerance. The patient's preoperative workup included an ultrasound scan, thyroid scan, computed tomography [CT] scan and thyroid profile. His T4 was 3 pmol/ 1 and TSH was 200 uUI/ml. All investigations revealed a multinodular goiter in the left lobe with an absent right lobe. A fine-needle aspiration biopsy was suspicious for malignancy. The patient underwent left thyroid lobectomy. The operative findings confirmed hemiagenesis of the right lobe and histopathology showed benign multinodular goiter in the left lobe. The parathyroids on the left side were in the normal position. This case report presents a rare case of hypothyroidism and absent right thyroid lobe. It may help increase awareness of this rare anomaly of the thyroid gland and thus make preoperative diagnosis possible

Dual ectopic thyroid: a case report with review of literature

The ectopic thyroid gland is a rare entity which is mostly found along the line of descent of the thyroid gland. Most of the patients present with midline swelling and usually seek medical attention. Dual ectopic thyroid gland is even rarer. The clinical examination and different imaging modalities establish its diagnosis. Radionuclide studies are highly sensitive and specific in demonstrating the functional tissues in patients with ectopic thyroid, thereby guiding further management. The authors reported a case of ectopic thyroid gland in a girl with midline neck management. The authors reported a case of ectopic thyroid gland in a girl with midline neck swelling initially, subsequently lost to follow-up. She again presented with enlarged swelling after a period of three years with dual ectopic thyroid in the neck region on thyroid scan. Thyroid scintigraphy demonstrated that progression in the size of ectopic glands was due to neglect in treatment

Anatomía quirúrgica del drenaje venoso en la región del triángulo carotídeo / Surgical anatomy of jugular vein tributaries

Background: The main tributaries of the internal jugular vein join at cervical level through the venous thyrolinguofacial trunk. This trunk is classically described as formed by the union of the facial, superior thyroid and lingual veins. Aim: To evaluate variations in the formation of the thyrolinguofacial trunk in human cadavers. Material and Methods: Thirty hemi-necks were dissected in human cadavers of nine men and six women, with ages ranging between 29 and 50 years, and analyzed by direct observation. Results: In 16 hemi-necks (53.3 percent), the trunk was thyrolinguofacial; in seven (23.3 percent), it was linguofacial; in six (20 percent), it was thyrolingual and in one case (3.3 percent) it was thyrolinguo pharyngofacial. No thyrofacial trunk formation was found. There was a correlation between the diameter of the internal jugular vein and of the venous trunk formed by these veins. Conclusions: There are morphological changes in the formation patterns of facial, lingual and superior thyroid veins. This information is useful for surgical oncology, plastic surgery, head and neck surgery and radiology.

Los principales afluentes de la vena yugular interna se incorporan a nivel cervical por medio del tronco venoso tirolinguofacial. Clásicamente se ha descrito su formación por la unión de la vena facial, lingual y tiroidea superior. El objetivo de este estudio fue determinar las variaciones en la presentación del tronco tirolinguofacial en cadáveres humanos de la región del Maule, Chile. Se disecaron 30 hemicuellos pertenecientes a 15 cadáveres humanos de ambos sexos, con un rango de edad entre 29 y 50 años, y se analizaron mediante observación directa. Se observó la formación de tronco venoso en la totalidad de los casos, siendo 53,3 por ciento correspondiente al tronco de tipo tirolinguofacial, 23,3 por ciento linguofacial, 20 por ciento tirolingual y sólo un 3,3 por ciento el tronco tirolinguofaringofacial. No se encontró la formación del tronco venoso de tipo tirofacial. Además se encontró una correlación significativa entre el diámetro de la vena yugular interna y el tronco venoso conformado por estas venas. Por lo tanto, existen variaciones morfológicas en los patrones de conformación de las venas facial, lingual y tiroidea superior, siendo estos datos de importancia para áreas de cirugía oncológica, cirugía plástica, cirugía de cabeza y cuello y radiología.

Hemiagénesis tiroidea de lóbulo derecho: comunicación de un caso / Right thyroid hemiagenesis and microcarcinoma of the left lobe: report of one case

In congenital thyroid hemiagenesis, one of the thyroid lobes, usually the left one, does not develop. This condition is generally asymptomatic. We report a 47 years old female with a diffuse left goiter. An ultrasound detected the right lobe hemiagenesis. She was subjected to a subtotal thyroidectomy. The pathological study of the surgical piece disclosed the presence of an encapsulated papillary carcinoma, follicular variant with a diameter of 2 mm.

La hemiagénesis tiroidea es una anormalidad congénita inhabitual en la cual uno de los lóbulos de la tiroides no se desarrolla. Su prevalencia es desconocida, debido a que generalmente es asintomática. Damos cuenta del caso de una mujer de 47 años, con bocio difuso de predominio izquierdo, operada, con presencia de microcarcinoma papilar en el lóbulo remanente. La detección de la hemiagénesis tiroidea es usualmente casual durante el examen de la glándula tiroides por otras causas. Es más frecuente en mujeres que en hombres (3:1), y el lóbulo izquierdo suele estar más comprometido que el derecho. Este caso muestra la inhabitual hemiagénesis tiroidea derecha con presencia de microcarcinoma papilar latente.

Tiroides ectópico sublingual con hipotiroidismo: revisión de la literatura y caso clínico / Sublingual ectopic thyroid gland with hypothyroidism: clinical case and review of the literature

Las ectopias tiroideas son una patología poco frecuente pero de una trascendencia clínica importante por el papel que juegan las hormonas tiroideas en el desarrollo del niño. Por ello tanto el clínico como el médico nuclear y el radiólogo deben estar atentos a la hora de establecer el diagnóstico. El clínico por la necesidad de instaurar un tratamiento precoz, y los dos últimos por la necesidad de ser cautos a la hora de evaluar toda la zona en la que puede encontrarse el tiroides ectópico en un niño, es decir, es básico examinar con cualquiera de las técnicas disponibles desde la boca hasta el mediastino. Exponemos un caso visto en nuestro hospital.

Complicações da cirurgia da tireóide: estudo de revisão / Complications of thyroid surgery: systematic review

O presente trabalho tem por objetivo realizar um estudo de revisão das principais complicações relacionadas com a cirurgia da glândula tireóide. Os dados foram recolhidos retrospectivamente diretamente a partir dos prontuários do Serviço de Arquivo Médico do Hospital Universitário Antonio Pedro (HUAP). Essa conduta foi atingida no período compreendido entre os anos de 1996 a 2001, num total de 202 cirurgias da glândula tireóide, realizadas nos Serviços de Cirurgia Geral I e II do HUAP. Como resultado final, pode-se verificar um percentual de 3,9% de lesões transitórias do nervo laríngeo recorrente, sem paralisia definitiva, sendo que 1,95% das complicações corresponderam a hematoma da ferida cirúrgica, detectada no período pós-operatório imediato e, quanto à hipocalcemia foi encontrada uma porcentagem de 3,9% dos casos. A comparação direta entre tiroidectomia total e subtotal mostrou-se significativa em relação ao estudo. Mas no que se refere às lesões do nervo laríngeo recorrente detectou-se que todas foram transitórias.

Carcinoma papilar multicéntrico del tiroides: estudio en el Hospital de San José de Bogotá / Multicentric papillary carcinoma of the thyroid study at the San José Hospital of Bogotá

El carcinoma papilar de tiroides (CPT) es la neoplasia endocrina más frecuente. Parte de sus características es ser multicéntrico y tener gran predisposición para la invasión ganglionar regional. Aún existe controversia acerca de la extensión del procedimiento quirúrgico como terapéutica de elección; las opciones varían desde la resección del lóbulo comprometido hasta la realización de tiroidectomía total y vaciamiento ganglionar central. Quienes apoyan la primera se basan en la menor posibilidad de lesión del nervio laríngeo recurrente, mientras los últimos buscan un mejor control local de la enfermedad. Se revisaron en forma retrospectiva las historias clínicas y reportes de patología de 202 pacientes con diagnóstico de CPT entre 1994 y 2003, llevados a tiroidectomía total y vaciamiento ganglionar central en el Hospital de San José de Bogotá, para determinar si eran multicéntricos en los especímenes quirúrgicos Los datos de 168 (83%) mujeres y 34 (17%) hombres fueron incluidos, encontrando múltiples focos en 91 (45%), metástasis ganglionares en 131 (64.85%) y combinación de los anteriores en 58 (28.7%). La lesión del nervio laríngeo recurrente se observó en tres pacientes (1.48%), todos ellos hombres. Los datos anteriores sugieren que la realización de tiroidectomía total y vaciamiento ganglionar central permite un mejor control de la enfermedad local con un bajo riesgo de lesión del nervio laríngeo recurrente.

Ectopic congenital hypothyroidism

Hypothyroidism is a frequent glandular dysfunction, easy to be diagnosed by measuring the thyroid-Stimulating Hormone [TSH] level. One of its different causes is the abnormal migration of thyroid cells during the embryogenesis. This article reports a case of a four weeks newborn child presenting clinically by apparent hypothyroidism and a deficiency of thyroid hormones. The cervical palpation does not find the thyroid gland. The thyroid scintigraphy by the iodine 123 shows a median uptake between the normal place of thyroid gland and the tongue base. Furthermore, there is no uptake at thyroid position. A substitute treatment was quickly established to avoid the irreversible cerebral damage. The ectopic thyroid is an important etiology of the congenital hypothyroidism. The thyroid scintigraphy is an interesting functional exam because the cervical ultrasonography is difficult to be realized for a newborn child and, it does not show highly situated ectopic cells. All these aims at appreciating the prognosis and reassuring the parents