Four patients (three female, one male; mean age 79 years old; age range 72-93 years old) with recurring melena/rectorrhagia and anemia were admitted. Nearly all of the patients presented with several risk factors such as cardiopathy, hypertension, diabetes, and liver and renal failure. 

A 43-year-old woman presented with intermittent headaches. 

A 39 year-old woman presented with nausea and vomiting of five days' duration.

A 76-year-old man presented with increasing left groin pain radiating to the abdomen with urination over the previous several weeks.

A 69-year-old woman with scleroderma presented with abdominal pain she had been experiencing for the past five days.

A 46-year-old man presented with headache, hypertension, and elevated plasma catecholamine levels.  

A 59-year-old woman with a history of renal failure due to amyloidosis presented with chronic shortness of breath.

A 33-year-old man was brought in by EMS after being found unresponsive in a park. 

A 48-year-old woman presented with increasing left knee pain and swelling for the previous three to four months.

A 76-year-old man presented with abdominal pain two days after a prostate biopsy.

A 40-year-old man presented with sensorineural hearing and vision loss. There was retinal tortuosity and iris atrophy on physical examination.

A 32-year-old man presented for further evaluation of an incidental liver lesion. 

A 29-year-old man with a history of chronic myelogenous leukemia presented following 24 hours of dyspnea.

A 21-year-old woman with no significant past medical history presented with an acute episode of worsening abdominal pain and vomiting. Over the previous four days, the patient had been vomiting acidlike fluid and had abdominal pain up into her chest and neck.

A 69-year-old man presented to the emergency department following a witnessed first generalized tonic-clonic seizure.

An 81-year-old man presented with left groin pain and swelling. The patient's history was significant for paroxysmal atrial fibrillation and flutter, which had been recently treated with cardiac and pulmonary vein ablation.

A 33-year-old woman presented with pelvic pain that had worsened over the previous 12 months.

A 79-year-old man presented with shortness of breath. The patient had a history of known recurrent non-small cell lung cancer (NSCLC) stage IIIA; the patient had undergone chemotherapy and radiation two years previously.

A 71-year-old woman with a history of stage IV follicular thyroid cancer status post-thyroidectomy with pulmonary metastases, endometrial cancer status post-total abdominal hysterectomy, latent tuberculosis, and gastroesophageal reflux disease presented with a persistent cough that had lasted five months. 

A 70-year-old woman was transferred to the emergency department (ED) of a non-PCI-capable hospital by ambulance, having just achieved return of spontaneous circulation (ROSC) after a 30-minute community PEA cardiac arrest.