ABSTRACT
The entity called tick-borne lymphadenopathy, also known as dermacentor-borne necrosis eritema lymphadenopathy, is included in the differential diagnosis of diseases transmitted by ticks, which have increased considerably in recent years due to greater clinical-epidemiological observation and diagnostic improvement. It is a zoonosis caused by Rickettsia slovaca and transmitted by the bite of the Dermacentor marginatus tick. Affected patients have a necrotic eschar surrounded by an erythematous halo in the scalp, as well as painful regional lymphadenopathy. We present a seven-year-old male who shows, after the extraction of a tick, a necrotic eschar on the scalp, accompanied by lymphadenopathy and low-grade fever. The study of polymerase chain reaction and culture of the lesion confirm the presence of Rickettsia slovaca. The patient received oral azithromycin with a good response. In Primary Care, it is important to monitor the tick bites, to detect possible diseases transmitted by them.
La entidad llamada tick-borne lymphadenopathy, también conocida como dermacentor-borne necrosis eritema lymphadenopathy, se incluye dentro del diagnóstico diferencial de enfermedades transmitidas por garrapatas, que han aumentado considerablemente en los últimos años debido a una mayor observación clínica-epidemiológica y mejoría diagnóstica. Es una zoonosis causada por Rickettsia slovaca y transmitida por la picadura de la garrapata Dermacentor marginatus. Los pacientes afectados tienen una escara necrótica rodeada de un halo eritematoso en el cuero cabelludo y adenopatías regionales dolorosas. Se presenta a un varón de siete años que mostró, tras la extracción de una garrapata, una escara necrótica en el cuero cabelludo, con adenopatías y febrícula. La reacción en cadena de la polimerasa y el cultivo de la lesión confirmaron la presencia de Rickettsia slovaca. El paciente recibió azitromicina oral con buena respuesta. En Atención Primaria, es importante el seguimiento de las picaduras de garrapatas para detectar posibles enfermedades transmitidas por estas.
Subject(s)
Dermacentor/microbiology , Lymphadenopathy/diagnosis , Rickettsia Infections/diagnosis , Rickettsia/isolation & purification , Tick-Borne Diseases/diagnosis , Animals , Child , Humans , Lymphadenopathy/microbiology , Male , Primary Health Care , Rickettsia Infections/transmission , Tick-Borne Diseases/transmission , Zoonoses/diagnosis , Zoonoses/microbiology , Zoonoses/transmissionABSTRACT
We present a case of atypical presentation of secondary syphilis with extensive lymph node involvement and pulmonary lesions, initially suspected as lymphoma. The patient presented with weight loss, dry cough, chest pain, palpable lymph nodes in several peripheral chains, and multiple pulmonary nodules and masses on chest imaging. The key features for secondary syphilis diagnosis were a lymph node biopsy suggestive of reactive lymphadenopathy, positive serologic tests for syphilis, and complete recovery after antisyphilitic treatment.
Subject(s)
Lung Diseases/diagnosis , Lymphadenopathy/diagnosis , Lymphoma/diagnosis , Syphilis/diagnosis , Adult , Biopsy , Diagnosis, Differential , Humans , Lung Diseases/microbiology , Lymphadenopathy/microbiology , Male , Syphilis/complications , Tomography, X-Ray ComputedABSTRACT
Non-tuberculous mycobacterial infection has increased significantly in recent years, especially in emerging countries. We present the case of a 25-year-old male patient, immunocompetent, with cervical lymphadenopathy, identifying Mycobacterium kumamotonense, a rare species in extrapulmonary forms and with a high drug resistance index.
Subject(s)
Mycobacterium Infections, Nontuberculous/microbiology , Nontuberculous Mycobacteria/classification , Adult , Antibiotics, Antitubercular/therapeutic use , Bacterial Proteins/genetics , Chaperonin 60/genetics , Genes, Bacterial , Humans , Immunocompetence , Lymphadenopathy/microbiology , Male , Mexico , Mycobacterium Infections, Nontuberculous/diagnosis , Mycobacterium Infections, Nontuberculous/immunology , Neck , Nontuberculous Mycobacteria/genetics , Nontuberculous Mycobacteria/pathogenicity , PhylogenyABSTRACT
Abstract We present a case of atypical presentation of secondary syphilis with extensive lymph node involvement and pulmonary lesions, initially suspected as lymphoma. The patient presented with weight loss, dry cough, chest pain, palpable lymph nodes in several peripheral chains, and multiple pulmonary nodules and masses on chest imaging. The key features for secondary syphilis diagnosis were a lymph node biopsy suggestive of reactive lymphadenopathy, positive serologic tests for syphilis, and complete recovery after antisyphilitic treatment.
Subject(s)
Humans , Male , Syphilis/diagnosis , Lymphadenopathy/diagnosis , Lung Diseases/diagnosis , Lymphoma/diagnosis , Biopsy , Syphilis/complications , Tomography, X-Ray Computed , Diagnosis, Differential , Lymphadenopathy/microbiology , Lung Diseases/microbiologyABSTRACT
We present a case involving a 74-year-old woman with cat scratch disease characterized by an enlarged and hard axillary lymph node as well as a palpable breast nodule mimicking a carcinoma. The lymph node and the breast nodule were excised. The pathologic examinations revealed granulomatous lymphadenitis with gram-negative bacilli and an intraductal papilloma. Antibiotic therapy (azithromycin) was prescribed and the patient's clinical evolution was excellent.
Subject(s)
Bartonella henselae/isolation & purification , Breast Diseases/diagnosis , Cat-Scratch Disease/diagnosis , Lymphadenopathy/diagnosis , Aged , Animals , Breast Diseases/microbiology , Breast Neoplasms/diagnosis , Cat-Scratch Disease/complications , Cats , Diagnosis, Differential , Female , Humans , Lymphadenopathy/microbiologyABSTRACT
Abstract We present a case involving a 74-year-old woman with cat scratch disease characterized by an enlarged and hard axillary lymph node as well as a palpable breast nodule mimicking a carcinoma. The lymph node and the breast nodule were excised. The pathologic examinations revealed granulomatous lymphadenitis with gram-negative bacilli and an intraductal papilloma. Antibiotic therapy (azithromycin) was prescribed and the patient's clinical evolution was excellent.
Subject(s)
Humans , Animals , Female , Aged , Cats , Breast Diseases/diagnosis , Cat-Scratch Disease/diagnosis , Bartonella henselae/isolation & purification , Lymphadenopathy/diagnosis , Breast Diseases/microbiology , Breast Neoplasms/diagnosis , Cat-Scratch Disease/complications , Diagnosis, Differential , Lymphadenopathy/microbiologyABSTRACT
Bartonella henselae is a relevant causative agent of bartonelloses in humans. We described an immunocompetent patient with clinical manifestation of chronic cervical lymphadenopathy after a cat-scratch in her forearm. This case shows B. henselae infection persistence even after prolonged antibiotic treatment.