Rib myelolipoma: a case report.

BACKGROUND: Myelolipoma is an uncommon benign tumor composed of mature adipose tissue and hematopoietic elements. These tumors generally affect the adrenal glands, with anomalous presentations being rare and with few cases described in the literature. Most myelolipomas are asymptomatic and discovered incidentally, either through imaging tests or at autopsies. However, depending on the location and size of the lesion, myelolipomas can cause symptoms of mass effect. This article aims to report a very rare presentation of a symptomatic primary myelolipoma affecting the ribs. CASE PRESENTATION: A 21-year-old white female patient presented with a complaint of burning chest pain over 3 months, with gradual worsening in intensity, accompanied by a progressively growing bulge in the right thoracic wall. The patient underwent thoracotomy of the fifth and sixth ribs with complete excision of the lesion with a safety margin. Thoracic wall reconstruction was performed using a polypropylene mesh. The patient had a good postoperative course and was discharged on postoperative day 3. Histopathological examination revealed a histological image consistent with myelolipoma. CONCLUSIONS: This report underscores the importance of considering a myelolipoma diagnosis for tumor masses in the ribs.

Toxoplasma gondii pseudocyst in a transbronchial biopsy: a case report.

BACKGROUND: We herein present a case in which a Toxoplasma cyst was found in a transbronchial biopsy specimen from an immunocompetent patient with negative serology for the parasite. CASE PRESENTATION: An 18-year-old Brazilian man presented with a 1-week history of dyspnea and fever and was diagnosed with right lower lobe pneumonia. He began inpatient treatment with intravenous antibiotics. During treatment, a bronchoscopy with bronchoalveolar lavage and transbronchial biopsy was performed. Anatomopathological examination of the transbronchial biopsy showed a small fragment of lung parenchyma with discrete septal thickening and a rounded structure, suggestive of a pseudocyst containing Toxoplasma gondii bradyzoites. However, serological tests were negative for immunoglobulin G and immunoglobulin M. CONCLUSIONS: Bronchoscopy is a minimally invasive, effective diagnostic and therapeutic method. Despite the fact that the Toxoplasma pseudocyst in the present case was not the cause of the patient's comorbidities, bronchoscopy with transbronchial biopsy allowed for an incidental diagnosis of a Toxoplasma pseudocyst with minimal invasiveness.

Ascite por peritonite lúpica: uma forma rara de início do lúpus eritematoso sistêmico / Ascites due to lupus peritonitis: a rare form of onset of systemic lupus erythematosus

O lúpus eritematoso sistêmico (LES) frequentemente cursa com serosites. Cerca de 16 por cento dos pacientes lúpicos apresentam acometimento de pleura e pericárdio. O acometimento peritoneal, no entanto, é especialmente raro, ocorrendo clinicamente em pequeno grupo de pacientes. O presente estudo trata do caso de uma paciente de 47 anos com diagnóstico de lúpus discoide que evoluiu com manifestações sistêmicas da doença, caracterizadas por distensão e dor abdominal significativas, astenia, emagrecimento, sinais propedêuticos de ascite e diarreia aguda baixa e não invasiva. Foi realizada exaustiva investigação diagnóstica por meio de exames laboratoriais, de imagem, colonoscopia e análise do líquido ascítico. A investigação, além de descartar a possibilidade de etiologia infecciosa, neoplásica e hemodinâmica, também permitiu a confirmação de LES. Dessa forma, a hipótese de peritonite lúpica com ascite tornou-se viável. Foi introduzido tratamento com prednisona e cloroquina, com melhora substancial do quadro.

Serositis is commonly seen in systemic lupus erythematosus (SLE). Approximately 16 percent of patients with SLE have pleural or pericardial involvement. However, peritoneal involvement is extremely rare, and clinically seen in a small group of patients. This is the case report of a 47-year old female with discoid lupus who evolved with systemic manifestations of the disease, characterized by significant abdominal distension and pain, asthenia, weight loss, signs of ascites, and acute non-invasive diarrhea. Exhaustive diagnostic investigation was performed and included laboratory and imaging tests, colonoscopy, and analysis of the ascitic fluid. Besides ruling out the possibility of an infectious, neoplastic, and hemodynamic etiology, the investigation also allowed the confirmation of SLE. Thus, the hypothesis of lupus peritonitis with ascites became viable. The patient was treated with prednisone and chloroquine, with substantial improvement of her condition.

Ascites due to lupus peritonitis: a rare form of onset of systemic lupus erythematosus.

Serositis is commonly seen in systemic lupus erythematosus (SLE). Approximately 16% of patients with SLE have pleural or pericardial involvement. However, peritoneal involvement is extremely rare, and clinically seen in a small group of patients. This is the case report of a 47-year old female with discoid lupus who evolved with systemic manifestations of the disease, characterized by significant abdominal distension and pain, asthenia, weight loss, signs of ascites, and acute non-invasive diarrhea. Exhaustive diagnostic investigation was performed and included laboratory and imaging tests, colonoscopy, and analysis of the ascitic fluid. Besides ruling out the possibility of an infectious, neoplastic, and hemodynamic etiology, the investigation also allowed the confirmation of SLE. Thus, the hypothesis of lupus peritonitis with ascites became viable. The patient was treated with prednisone and chloroquine, with substantial improvement of her condition.