ABSTRACT Mycoplasma-induced rash and mucositis is a distinctive subset of reactive infectious mucocutaneous eruption identified in 2015 to differentiate it from other mucocutaneous disorders such as Stevens-Johnson syndrome, erythema multiforme major, and toxic epidermal necrolysis. Although its pathophysiology is not completely understood, Mycoplasma-induced rash and mucositis is characterized by polyclonal B cell proliferation, production of antibodies against Mycoplasma pneumoniae, subsequent immune complex deposition, and keratinocyte apoptosis. Clinical manifestations include scattered cutaneous lesions and severe mucositis, which predominantly affect children and […]

ABSTRACT The etiologies of vulvar nodules range from infectious to neoplastic. Owing to the wide spectrum of vulvar diseases, clinical differentiation of the lesions is crucial for adequate diagnosis and management. A 46-year-old patient presented with a nodular lesion in the vulvar region that had been growing slowly for 10 years. Gynecological examination revealed the presence of a solid nodular lesion measuring approximately 3 cm in the middle third of the right labia majora without phlogistic signs or secretion discharge. […]

ABSTRACT Diabetes mellitus is a highly prevalent human endocrine disorder. Skin lesions are reported in approximately one-third of all diabetes mellitus patients. The clinical presentation and frequency vary according to the subtype of diabetes mellitus, metabolic control, and clinical course, with certain skin diseases occurring before diagnosing hyperglycemia. In this regard, the correct definition of cutaneous manifestations associated with diabetes mellitus can help define the etiology of hyperglycemia as well as the need to optimize glycemic control. In this narrative […]

ABSTRACT Kabuki syndrome is a rare congenital malformation with typical facial features, skeletal anomalies, delayed neuropsychomotor development and growth, and cardiac, genitourinary, gastrointestinal, endocrine, and dental anomalies. One of the main differential diagnoses is CHARGE syndrome, standing for and characterized by Coloboma of the eye, Heart defects, Atresia of the nasal choanae, Restricted intellectual development, Genitourinary malformations, and Ear anomalies. Because these syndromes have similar characteristics, distinguishing them may be challenging. A 24-year-old male patient admitted with reduced renal function […]

ABSTRACT Ground-glass opacity is a very frequent and unspecified finding in chest computed tomography. Therefore, it admits a wide range of differential diagnoses in the acute context, from viral pneumonias such as influenza virus, coronavirus disease 2019 and cytomegalovirus and even non-infectious lesions, such as vaping, pulmonary infarction, alveolar hemorrhage and pulmonary edema. For this diagnostic differentiation, ground glass must be correlated with other findings in imaging tests, with laboratory tests and with the patients’ clinical condition. In the context […]

ABSTRACT A 34-years-old pregnant woman admitted in the emergency unit complaining about worsening right iliac fossa pain for 2 days. Acute appendicitis was the suspected diagnosis. Laboratory exams were ordered and results were within normal limits for infectious and inflammatory aspects. Ultrasound scan revealed a pregnancy in course without alterations and a thickness of the appendix wall without inflammatory signs in the surrounding tissue. Because the suspicion of acute appendicitis remained, a magnetic resonance was done and confirmed the diagnosis […]

ABSTRACT An asymptomatic 79-year-old woman, with incidental finding on abdominal ultrasound of a solid nodule in the tail of the pancreas. Magnetic resonance imaging showed a 12mm solid tumor. The suggested diagnosis was pancreatic neuroendocrine tumor. The pathological examination showed an intrapancreatic splenic tissue. This is a rare ectopic location of spleen tissue and it should be considered in the differential diagnosis of pancreatic solid tumors.

ABSTRACT Objective To check knowledge of undergraduate dental students to make diagnosis of dental fluorosis with varying degrees of severity and choose its appropriate treatment. Methods Data were collected using a semi-structured questionnaire addressing knowledge of undergraduates based on ten images of mouths presenting enamel changes. Results Only three images were correctly diagnosed by most undergraduates; the major difficulty was in establishing dental fluorosis severity degree. Conclusion Despite much information about fluorosis conveyed during the Dentistry training, as defined in […]

Cervical adenitis >1.5cm in diameter is the less frequently observed criteria in patients with Kawasaki disease and it is usually found in association with other symptoms during the acute phase. Moreover, the finding of fever and lymphadenitis with intense local signs of inflammation and phlegmon is rarely seen as the initial manifestation of Kawasaki disease. We report the case of a 7-year-old boy who had cervical lymphadenitis with adjacent cellulitis and phlegmon mimicking bacterial adenitis as the first presentation of […]

Transcranial sonography has become a useful tool in the differential diagnosis of parkinsonian syndromes. This is a non-invasive, low cost procedure. The main finding on transcranial sonography in patients with idiopathic Parkinson’s disease is an increased echogenicity of the mesencephalic substantia nigra region. This hyperechogenicity is present in more than 90% of cases, and reflects a dysfunction in the dopaminergic nigrostriatal pathway. This study discussed how the hyperechogenicity of the substantia nigra may facilitate the differential diagnosis of parkinsonian syndromes.