A Rare Presentation of Lyme Disease in an Immunocompromised Patient.

Lyme disease is a progressive infectious disease caused by the Borrelia species that affects multiple organ systems, including the brain, heart, skin, and musculoskeletal systems. The cardiac manifestations of Lyme disease typically present with atrioventricular nodal conduction abnormalities and, more rarely, myocarditis. We report a case of an immunocompromised 57-year-old woman who presented with acute onset shortness of breath, hypervolemia, injective conjunctiva, and global vision loss of the left eye in the setting of a recent tick bite. Serologic testing confirmed borreliosis, and cardiac testing demonstrated acute isolated systolic heart failure without any cardiac conduction system abnormalities on the electrocardiogram. The diagnosis of Lyme carditis was made, and the patient was started on doxycycline with complete recovery of cardiac systolic function. This case demonstrates atypical cardiac manifestations of Lyme disease and highlights the difficulty in workup and understanding of Lyme carditis particularly in immunocompromised patients.

An Unexpected Turn of Events in a Patient With Mitral Valve Endocarditis.

A variety of gram-positive infections can be treated with daptomycin. Daptomycin-induced acute eosinophilic pneumonia (DEP) is a rare adverse drug reaction with nonspecific clinical findings of dyspnea, dry cough, and fever. Although diagnostic criteria exist, prompt recognition is important to prevent rapid progression and respiratory failure. In this case, a 69-year-old female was initially admitted due to a prosthetic joint infection; however, her case was complicated by DEP.

Hemorrhagic Pericardial Effusion as the Presenting Symptom of Newly Diagnosed Rheumatoid Arthritis.

Hemorrhagic pericardial effusion is a rare presenting sign of undiagnosed rheumatoid arthritis (RA). We present a case of a 58-year-old female with a history of mucinous cystadenoma with subsequent omental caking status-post small bowel resection, chronic intermittent bilateral knee pain, carpal tunnel syndrome of the left hand, and drainage of a peritoneal inclusion cyst two days prior to admission. The patient had pleuritic chest pain and acute-onset shortness of breath but was hemodynamically stable on presentation. Transthoracic echocardiogram and CT scan demonstrated a large pericardial effusion measuring 1.5 cm anteriorly, 2.21 cm posteriorly, and 2.5 cm laterally. Diagnostic pericardiocentesis revealed a hemorrhagic pericardial fluid with a glucose level of 133 mg/dL, pH of 7.34, albumin of 2.6 g/dL, red blood cell count of 401,000 cells per cubic millimeters (CUMM), white blood cell count of 1,400 CUMM, lactate dehydrogenase (LDH) of 930 U/L, and protein of 5 g/dL. Infectious and malignancy workups were negative. Rheumatologic workup was positive for elevated rheumatoid factor and anti-cyclic citrullinated peptide. The patient was diagnosed with RA; she was started on methotrexate with folic acid, and a pericardial drain was kept in place for three days. We present a brief review of the workup, etiologies, and therapeutic approach for patients who present with hemorrhagic pericardial effusion secondary to undiagnosed RA.