Type B Lactic Acidosis: A Very Rare but Fatal Complication of Gastrointestinal Solid Tumor.

Type B lactic acidosis, secondary to solid cancer, is very rare. It is mostly seen in patients with hematological malignancies. Although its exact pathogenesis is unknown, it is believed to be caused by overproduction and the inability of tumor cells to remove lactate.

Acute Acalculous Cholecystitis Due to COVID-19, an Unusual Presentation.

Although the Coronavirus Disease 2019 (COVID-19) infection mainly affects the lung, its gastrointestinal (GI) involvements are also well-known, especially hepatic involvement presenting as mild to moderate transaminitis. However, COVID-19 infection presenting with gall bladder involvement with acalculous cholecystitis is extremely rare in the medical literature. So far, only two cases have been reported, and herein, we are reporting the third case of a patient who developed COVID-19 presenting as an acute acalculous cholecystitis.

Atypical Presentation of Fatal Disease: Painless Aortic Dissection.

Aortic dissections (ADs) are uncommon but they are highly lethal. Due to atypical signs and symptoms, diagnosis of type B AD can be easily missed or delayed. Our patient presented to the emergency center with dizziness and fall for which he was evaluated and treated for hypertension.

A Fatal, Post-Intubation, Tracheoesophageal Fistula.

Despite the use of safer tubes with high-volume, low-pressure cuffs, post-intubation injury is still the leading cause of benign, acquired, tracheoesophageal fistula (TEF). Cuff pressure, which is their primary pathogenetic driver, is not routinely monitored as a quality metric. To highlight the devastating consequences, we report this case of a fatal, iatrogenic fistula in a 64-year-old Asian male.

A Sporadic Case of Disseminated Fusobacterium Causing Pylephlebitis and Intracranial and Hepatic Abscesses in a Healthy Young Patient.

Fusobacterium species is known for being a causative agent for Lemierre's syndrome, which is characterized by thrombophlebitis of the jugular vein. However, Fusobacterium species causing Lemierre's variant gastrointestinal syndrome has only been reported in case reports. We present a case of Fusobacterium causing hepatic vein pylephlebitis, multiple brain abscesses, and hepatic abscess.

Severe Pulmonary Hypertension and Cholestatic Liver Injury: Two Rare Manifestations of Graves' Disease.

Graves' disease is seen in the majority of patients diagnosed with hyperthyroidism. The usual symptoms of Graves' disease are tremors, weight loss, sweating, exophthalmos, pretibial edema, anxiety, and palpitations. However, there could be unusual manifestations such as hepatic failure and pulmonary hypertension.

A Case of Isolated Pulmonary Mycobacterium Avium Complex Being the First Presentation of a Newly Diagnosed HIV/AIDS.

We report a case of a 39-year-old HIV positive transgender female with isolated manifestations of pulmonary Mycobacterium avium complex (MAC) infection. Although MAC infection is common in immunocompromised patients, the classical presentation is extra-pulmonary. Pulmonary MAC infection is extremely rare.

Diagnosis and Management of 1:1 Atrial Flutter in the Setting of Aortic Valve Endocarditis and Embolic Stroke.

Atrial flutter is a rapid, regular atrial tachyarrhythmia that occurs most commonly in patients with underlying structural heart disease. Spontaneous 1:1 conduction of atrial flutter is indeed rare, but its diagnosis and management is of critical importance. We describe a case of a 65-year-old man with hypertension, preserved ejection fraction heart failure, end-stage renal disease, Parkinson's disease, and Alzheimer's dementia, in whom atrial flutter was associated with 1:1 atrioventricular conduction.