Systemic Mastocytosis with Associated Hematological Neoplasms. Diagnostic features and unique response pattern to tyrosine kinase inhibitors and allo-bone marrow transplantation therapy / Mastocitosis sistémica con neoplasias hematológicas asociadas. Características diagnósticas y patrón de respuesta único a los inhibidores de la tirosina cinasa y al tratamiento de trasplante de médula ósea

Systemic Mastocytosis is a clonal proliferation of mast cells; in a significant fraction of cases it is associated with another concurrent hematological neoplasm. Molecular analysis of KIT mutations and other associated genetic alterations suggest a common origin in the stem cell compartment. Mast cell infiltration patterns in bone marrow biopsy may be subtle in cases associated with t (8;21) AML. Here we report three cases of clonally related SM-AHN, two cases with SM-CMML and one case with SM- t (8;21) AML. We describe in detail the bone marrow infiltration pattern at diagnosis and during the course of treatment with allogeneic stem cell transplant and novel TK inhibitors, showing the unique dynamics of mast cell clearance after therapy.(AU)

La mastocitosis sistémica es una proliferación clonal de mastocitos que puede asociarse con otra neoplasia hematológica concurrente en una fracción significativa de los casos. El análisis molecular de mutaciones de KIT y otras alteraciones genéticas asociadas indican un origen común en el compartimento de células madre. Los patrones de infiltración de mastocitos en la biopsia de médula ósea pueden ser sutiles en los casos asociados con AML t (8; 21). Aquí se describen 3 casos de MS-NHA, 2 casos con MS-LMMC y un caso con MS-t (8; 21) LMA. Describimos en detalle el patrón de infiltración de la médula ósea en el momento del diagnóstico y durante el curso del tratamiento con alotrasplante de células madre y nuevos inhibidores de TK, mostrando la dinámica de la depuración de mastocitos después de la terapia.(AU)

Systemic Mastocytosis with Associated Hematological Neoplasms. Diagnostic features and unique response pattern to tyrosine kinase inhibitors and allo-bone marrow transplantation therapy.

Systemic Mastocytosis is a clonal proliferation of mast cells; in a significant fraction of cases it is associated with another concurrent hematological neoplasm. Molecular analysis of KIT mutations and other associated genetic alterations suggest a common origin in the stem cell compartment. Mast cell infiltration patterns in bone marrow biopsy may be subtle in cases associated with t (8;21) AML. Here we report three cases of clonally related SM-AHN, two cases with SM-CMML and one case with SM- t (8;21) AML. We describe in detail the bone marrow infiltration pattern at diagnosis and during the course of treatment with allogeneic stem cell transplant and novel TK inhibitors, showing the unique dynamics of mast cell clearance after therapy.

Genodermatosis hiperpigmentadas

Introducción: Las genodermatosis son consideradas enfermedades raras, por ser poco frecuentes y afectar un número reducido de individuos. El poco conocimiento sobre ellas en el campo de las ciencias médicas y los pobres recursos terapéuticos disponibles dificulta su diagnóstico, con una alta morbilidad. En Las Tunas representan 22,22 % de las enfermedades genéticas. Entre ellas se pueden citar presentando alteraciones de la pigmentación con hiperpigmentación: incontinencia pigmenti, síndrome de LEOPARD, mastocitosis, la neurofibromatosis, síndrome de Noonan, y con hiper e hipopigmentación están las didimosis. Objetivo: Compilar información actualizada acerca de las características y criterios diagnósticos de las enfermedades genéticas nombradas que faciliten su estudio y seguimiento de los pacientes. Métodos: Revisión de la literatura disponible en SciELO, PubMed Central, Medline Plus, Clinical key, Orphanet y OMIM. Los descriptores utilizados fueron: genética médica, enfermedades dermatológicas genéticas. Durante el proceso de revisión se consultaron 7 libros y 16 artículos publicados en los últimos 5 años. Análisis y síntesis de la información: Se revisó la clasificación de las genodermatosis hiperpigmentarias, y de estas las características clínicas, el tipo de herencia, el gen afectado, los criterios diagnósticos y estudios complementarios. Conclusiones: Conocer las características y criterios diagnósticos de las enfermedades genéticas presentadas permite diagnosticarlas, diferenciarlas entre ellas y favorecer el seguimiento de los pacientes afectados.

Introduction: Genodermatoses are considered rare diseases, as they are rare and affect a small number of individuals. The poor knowledge about them in the field of medical sciences and the poor therapeutic resources available hinder their diagnosis, with high morbidity. In Las Tunas they represent 22.22% of genetic diseases. Among them, can be cited presenting pigmentation alterations with hyperpigmentation: incontinentia pigmenti, LEOPARD syndrome, mastocytosis, neurofibromatosis, Noonan syndrome, and with hyper and hypopigmentation are the didymosis. Objective: To compile updated information about the characteristics and diagnostic criteria of the genetic diseases named to facilitate their study and follow-up of patients. Methods: Literature review available in SciELO, PubMed Central, Medline Plus, Clinical key, Orphanet and OMIM. The descriptors used were: medical genetics, genetic dermatological diseases. During the review process, 7 books and 16 articles published in the last 5 years were consulted. Analysis and synthesis of information: The classification of hyperpigmentary genodermatoses was reviewed, and of these the clinical characteristics, the type of inheritance, the affected gene, the diagnostic criteria and complementary studies. Conclusions: Knowing the characteristics and diagnostic criteria of the genetic diseases presented allows to diagnose them, differentiate them between them and favor the follow-up of the affected patients.

Mastocitosis del adulto: reporte de un caso / Adult mastocytosis: a case report

RESUMEN La mastocitosis es una enfermedad heterogénea, caracterizada por una acumulación de mastocitos en uno o más órganos, siendo el más afectado la piel. Es más frecuente en niños, pero también se presentan casos en los adultos. Hay diferencias significativas entre las formas de presentación en estos grupos etarios, así como también en su evolución y pronóstico. Presentamos el caso clínico de una paciente con mastocitosis cutánea de inicio en la adultez.

ABSTRACT Mastocytosis is a heterogeneous disease, characterized by an accumulation of mast cells in one or more organs. The skin being is the most frecuently affected organ. It is more common in children, but cases also occur in adults. There are significant differences between the forms of presentation in these age groups, as well as in their evolution and prognosis. We report the case of a patient with adult-onset cutaneous mastocytosis.

Anaesthesia in a parturient with systemic mastocytosis.

Mastocytosis is characterized by clonal expansion of mast cells, with abnormal accumulation in different organs. Perioperatively, numerous stimuli may lead to the release of vasoactive substances by mast cells. Parturients with systemic mastocytosis pose a challenge to the anesthesiologist: on one hand, the pain and stress of labor may lead to greater mast cell activation and, on the other, the administration of drugs that may possibly trigger the release of mast cell mediators. The authors describe a case of a 34-year-old pregnant woman with systemic mastocytosis who requests labor analgesia. An epidural analgesia was performed after induction of labor, after considering anesthetic particularities. The epidural procedure, labor and delivery were uneventful. A review of systemic mastocytosis is provided and its anesthetic considerations are discussed.

Consideraciones anestésicas en una parturienta con mastocitosis sistémica / Anesthetic considerations in a laboring woman with systemic mastocytosis

La mastocitosis se caracteriza por la expansión clónica de mastocitos, con acumulación anormal en diferentes órganos. Perioperatoriamente, numerosos estímulos pueden originar la liberación de sustancias vasoactivas por parte de los mastocitos. Las parturientas con mastocitosis sistémica plantean una dificultad al anestesiólogo: por un lado, el dolor y el estrés del parto pueden causar una mayor activación de los mastocitos y, por otro, la administración de fármacos puede desencadenar posiblemente la liberación de mediadores de los mastocitos. Los autores describen un caso de una embarazada de 34 años de edad con mastocitosis sistémica que solicita analgesia para el parto. Se realizó analgesia epidural tras la inducción del parto, una vez consideradas las particularidades anestésicas. El procedimiento epidural, el parto y la expulsión transcurrieron sin incidentes. Se aporta una revisión de la mastocitosis sistémica y se abordan sus consideraciones anestésicas.(AU)

Mastocytosis is characterized by clonal expansion of mast cells, with abnormal accumulation in different organs. Perioperatively, numerous stimuli may lead to the release of vasoactive substances by mast cells. Parturients with systemic mastocytosis pose a challenge to the anesthesiologist: on one hand, the pain and stress of labor may lead to greater mast cell activation and, on the other, the administration of drugs that may possibly trigger the release of mast cell mediators. The authors describe a case of a 34-year-old pregnant woman with systemic mastocytosis who requests labor analgesia. An epidural analgesia was performed after induction of labor, after considering anesthetic particularities. The epidural procedure, labor and delivery were uneventful. A review of systemic mastocytosis is provided and its anesthetic considerations are discussed.(AU)

Rotura prematura de membranas en gestante afecta de mastocitosis cutánea / Premature rupture of membranes in pregnant women with cutaneous mastocytosis

La mastocitosis es una enfermedad poco frecuente, caracterizada por la proliferación de mastocitos. Los síntomas aparecen tras la exposición a factores desencadenantes, que generan una liberación de mediadores inflamatorios, pudiendo dar lugar a reacciones alérgicas e incluso a reacciones anafilácticas. Existen dos formas de presentación, la cutánea y la sistémica. Su relación con la gestación es poco conocida y hace plantearse aspectos sobre la seguridad tanto materna como fetal. Durante la gestación, esta entidad puede mejorar, empeorar o mantenerse estable y se ha relacionado con la amenaza de parto pretérmino, mientras que durante el parto es esencial el control del dolor y evitar aquellos fármacos que puedan desencadenar un brote. Además, los cambios hormonales acontecidos durante la gestación, parto y puerperio pueden favorecer la aparición de reacciones anafilácticas. Presentamos el caso de una gestante de 34 semanas de amenorrea, afecta de mastocitosis cutánea, que ingresó en nuestro servicio por rotura prematura de membranas, con lo que tuvimos que plantearnos cuál era el protocolo de actuación más adecuado a la patología que presentaba la paciente.

Mastocytosis is an uncommon disease characterized by the proliferation of mast cells. Symptoms appear after exposure to triggering factors resulting in mast cell mediator release, which can lead to anaphylactic reactions. There are two forms of presentation, cutaneous and systemic mastocytosis. There is limited information on the impact of this disorder on pregnancy and questions may arise about maternal and foetal safety. During pregnancy, this disease can improve, worsen, or remain stable and even be associated with preterm delivery. During labour pain control is important and drugs that can trigger an episode should be avoided. Furthermore, the hormonal changes that occur during pregnancy, childbirth and puerperium can lead to anaphylactic reactions. We present a pregnant woman at 34 weeks of amenorrhoea, affected by cutaneous mastocytosis, admitted in our hospital due to premature rupture of membranes. We had to consider the most appropriate protocol for our patient's pathology.

Riesgos para el niño con diagnóstico de mastocitosis ante la infección por COVID-19

Introducción: La mastocitosis se caracteriza por la acumulación de mastocitos en varios órganos, especialmente en la piel, con alteración de la respuesta inmune. En Las Tunas, representa 5,17 % de las genodermatosis. La COVID-19, producida por el virus SARS-CoV-2, muestra alta letalidad en el mundo y afecta también a la población pediátrica. Los casos que evolucionan hacia la forma complicada de la enfermedad son aquellos que presentan comorbilidades asociadas y trastorno del sistema inmune. Objetivo: Compilar información sobre los principales riesgos para el niño con diagnóstico de mastocitosis y la infección COVID-19. Métodos: Se revisó la literatura disponible en Scopus, SciELO, Pub Med Central, MedlinePlus, Clinicalkey, LILACS, Orphanet, OMIM, OMS, OPS y MINSAP. Los descriptores utilizados fueron genética médica, enfermedades dermatológicas genéticas, mastocitosis, coronavirus humano, SARS-CoV-2, COVID-19. Durante el proceso de revisión se consultaron 5 libros y 21 artículos publicados en los últimos 5 años. Análisis y síntesis de la información: A partir de la etiopatogenia y manifestaciones clínicas de la mastocitosis y de la COVID-19, se exponen los principales riesgos para el niño con diagnóstico de mastocitosis como manifestaciones urticariformes, anafilaxia y síndrome de activación de mastocitos que pueden llevar al niño a desarrollar cuadros graves de COVID-19. Se refieren elementos a tener en cuenta para tratar estos pacientes. Conclusiones: En los infantes con diagnóstico de mastocitosis existen riesgos de desarrollar complicaciones por infección de COVID-19, reconocerlos, permite mejorar su atención.

Introduction: Mastocytosis is characterized by the accumulation of mast cells in various organs, especially in the skin, with alteration of the immune response. In Las Tunas province, it represents 5.17% of genodermatoses. COVID-19, caused by the SARS-CoV-2 virus, shows high lethality in the world and also affects the pediatric population. Cases that evolve into the complicated form of the disease are those with associated comorbidities and immune system disorders. Objective: To compile information on the main risks for children diagnosed with mastocytosis and COVID-19 infection. Methods: The literature available in Scopus, SciELO, PubMed Central, MedlinePlus, Clinicalkey, LILACS, Orphanet, OMIM, WHO, PAHO, and MINSAP was reviewed. The descriptors used were: medical genetics, genetic dermatological diseases, mastocytosis, human coronavirus, SARS-CoV-2, COVID-19. During the review process, 5 books and 21 articles published in the last 5 years were consulted. Analysis and synthesis of information: Based on the etiopathogenesis and clinical manifestations of mastocytosis and COVID-19, the main risks for the child diagnosed with mastocytosis are shown, such as urticarial manifestations, anaphylaxis and mast cell activation syndrome that can lead the child to develop severe COVID-19. Elements to take into account to treat these patients are included. Conclusions: In infants diagnosed with mastocytosis there are risks of developing complications due to COVID-19 infection, and recognizing them, allows improving their care.

Anesthetic considerations in a laboring woman with systemic mastocytosis. / Consideraciones anestésicas en una parturienta con mastocitosis sistémica.

Mastocytosis is characterized by clonal expansion of mast cells, with abnormal accumulation in different organs. Perioperatively, numerous stimuli may lead to the release of vasoactive substances by mast cells. Parturients with systemic mastocytosis pose a challenge to the anesthesiologist: on one hand, the pain and stress of labor may lead to greater mast cell activation and, on the other, the administration of drugs that may possibly trigger the release of mast cell mediators. The authors describe a case of a 34-year-old pregnant woman with systemic mastocytosis who requests labor analgesia. An epidural analgesia was performed after induction of labor, after considering anesthetic particularities. The epidural procedure, labor and delivery were uneventful. A review of systemic mastocytosis is provided and its anesthetic considerations are discussed.

Manejo anestésico de paciente con mastocitosis cutánea / Anaesthetic managemet of cutaneous mastocytosis

Mastocytosis consists of a heterogeneous group of disorders characterized by an abnormal increase of mast cell in one or more organs or tissues. The degranulation of mast cells with subsequent clinical symptoms can be triggered by psychological, chemical or traumatic agents. The main challenge of these patients is to avoid these triggers in order to prevent an anaphylactic shock. We report a case of a patient diagnosed with cutaneous mastocytoses who underwent urgent appendicectomy. Their perioperative management involves a multidisciniplinary approach. We report the anaesthetic management in this disease.

Las mastocitosis son un grupo heterogéneo de enfermedades que se caracterizan por la proliferación de mastocitos y su posterior acumulación. La degranulación de los mastocitos puede desencadenarse por diferentes agentes como la cirugía, el estrés o los fármacos histaminoliberadores. El principal reto que plantea a un anestesiólogo un paciente con mastocitosis es la posibilidad de que se desencadene una reacción anafiláctica. Se describe el manejo anestésico de un paciente con mastocitosis cutánea. El desconocimiento de esta entidad puede suponer un aumento de la morbimortalidad de estos pacientes.

Mastocitoma solitario ampollar / Solitary Blister Mastocytoma

La mastocitosis comprende un conjunto de desórdenes con expansión anormal y acumulación de mastocitos en diversos órganos incluida la piel, en la cual se describen distintas formas clínicas de presentación. El mastocitoma cutáneo solitario constituye el 10-15% de todas las mastocitosis. Presentamos el caso de un niño con mastocitoma cutáneo solitario ampollar, un cuadro infrecuente cuyo diagnóstico oportuno constituye un reto para pediatras y dermatólogos (AU)

Mastocytosis comprises a set of disorders with abnormal expansion and accumulation of mast cells in various organs including the skin, wich describes different form of clinical presentation. The solitary cutaneous mastocytoma constitutes 10-15 % of all mastocytosis. We present the case of a child with solitary blistering mastocytoma, an infrequent condition whose, timely diagnosis constitutes a challenge for pediatricians and dermatologists (AU)

Translation and Cultural Adaptation of the German Mastocytosis Quality of Life Questionnaire (MC-QoL) into Spanish. / Adaptación transcultural del cuestionario Mastocytosis Quality of Life questionnaire (MC-QoL) del alemán al castellano.

BACKGROUND: Mastocytosis encompasses a spectrum of disorders in which different organs and tissues are affected by the clonal expansion of mast cells. The skin is one of the most frequently affected organs. The clinical manifestations of mastocytosis are linked to the release of proinflammatory mediators, and the impact of this disorder on patient quality of life has been described in various studies. The Mastocytosis Quality of Life Questionnaire (MC-QoL), which was recently developed in Germany and now also exists in English, is an important tool for evaluating the psychosocial impact of this disease. OBJECTIVE: To create a Spanish version of the MC-QoL that was culturally equivalent to the original German questionnaire. MATERIAL AND METHODS: The adaptation process, which involved forward translation, cognitive interviews, and back translation, was conducted in accordance with the principles of good practice for the translation and cultural adaptation of patient-reported measures of the International Society for Pharmacoeconomics and Outcomes Research. The MC-QoL contains 27 items in 4 domains: symptoms, emotions, social life/functioning, and skin. RESULTS: The first version of the Spanish questionnaire, obtained by forward translation from German, was tested in cognitive interviews, after which 3 items were modified to make them easier to understand. The German back translation of the Spanish questionnaire was analyzed by the authors of the original MC-QoL, who modified 1 item they considered to have lost specificity in the adaptation process. The definitive Spanish MC-QoL was then produced following minor modifications agreed on with the German authors. CONCLUSION: We have produced a cultural adaptation of the MC-QoL in Spanish that can be used in routine clinical practice to obtain a more complete picture of the impact of mastocytosis on patient quality of life.

Anaphylactic risk due to systemic mastocytosis: Perioperative management in cardiac surgery. / Riesgo anafiláctico por mastocitosis sistémica: manejo perioperatorio en cirugía cardíaca.

Mastocytosis is a disease characterised by an abnormal proliferation of mast cells. The degranulation of mast cells can be triggered by chemical, physical, and psychological factors, and in severe cases may be accompanied by cardiovascular alterations and shock. Tryptase concentrations greater than 20ug/L may be associated with an increased risk of mastocyte degranulation. The case is presented on a 71 year-old man that underwent an aortic valve replacement and aortic-coronary bypass surgery. He had an indolent systemic mastocytosis and a history of histaminergic crises, with a baseline value of tryptase prior to surgery of 58.1ug/L.

Multiple vertebral fractures in young man as first manifestation of systemic mastocytosis. / Fracturas vertebrales múltiples en varón joven como primera manifestación de una mastocitosis sistémica.

Systemic mastocytosis (SM) is a clonal disease of mast cell progenitors from the bone marrow. The clinical picture varies from asymptomatic forms (indolent) to a highly aggressive form with a very short (mast cell leukemia) survival. Between 28-34% of patients with SM are related to bone condition at the time of diagnosis and 16% have symptomatic fractures. The presentation of SM as clinical vertebral fractures in young men is rare. Here, we describe a case of established osteoporosis as the only manifestation of SM.