The appropriate group to review this topic would be a Clinical Multidisciplinary Team (MDT), specifically consisting of Gastroenterologists, Infectious Disease Specialists, and Surgical Oncologists.
As a Senior Medical Consultant, I have synthesized the case details below.
Abstract:
This clinical case involves a 60-year-old male with a significant smoking history and multiple metabolic comorbidities presenting with profound constitutional symptoms, including a 50-pound weight loss over a three-week period. Initial physical and laboratory findings revealed high-grade pyrexia (39.1°C), significant leukocytosis (20.85 K/uL), hyponatremia, and elevated alkaline phosphatase. Diagnostic imaging via CT and ultrasound identified an exophytic gastric antral mass with suspected direct extension into the liver, alongside large, multiseptated hypodense hepatic lesions. While the primary differential diagnosis initially favored gastric malignancy with metastatic progression, the patient’s recent travel to El Salvador and the subsequent onset of loose stools suggest a potential infectious etiology, such as an amoebic or pyogenic liver abscess, which must be reconciled with the localized gastric findings.
Clinical Case Synthesis: Gastric Mass and Hepatic Lesions
0:05 Patient Profile and History: A 60-year-old male, originally from El Salvador, presents with a 40 pack-year smoking history and a background of hypertension, hyperlipidemia, pre-diabetes, and GERD.
0:31 Rapid Constitutional Decline: The patient reported a critical 50-pound weight loss within three weeks, accompanied by anorexia, fatigue, and a single episode of postprandial, non-bilious emesis.
0:51 Neurological and Cardiac Event: A syncopal episode occurred one week prior to admission; however, initial outpatient cardiac evaluation attributed the event to dehydration.
1:06 Laboratory Abnormalities: Acute findings included a temperature of 39.1°C, tachycardia, and significant leukocytosis (WBC 20.85). Metabolic panels showed hyponatremia (mid-120s), elevated lactate (3.8 mmol/L), and elevated alkaline phosphatase (196 U/L), alongside microcytic anemia and thrombocytosis.
1:41 Diagnostic Imaging (CT): A CT of the abdomen and pelvis with IV contrast revealed an exophytic mass in the gastric antrum with associated mesenteric lymphadenopathy and potential direct invasion into the left hepatic lobe, raising high suspicion for malignancy.
2:10 Hepatic Ultrasonography: Ultrasound localized a large (6.3 x 6.9 x 8 cm) heterogeneous, multiseptated hypodense lesion in the right hepatic lobe and a smaller (2.7 x 2.3 cm) similar lesion in the left lobe; notably, no internal vascularity was detected on color Doppler.
2:36 Epidemiological Factor: The patient disclosed a recent three-day trip to El Salvador immediately preceding the illness.
2:47 Gastrointestinal Correlation: Following his return to the U.S., the patient experienced the onset of loose stools, providing a potential infectious link to the hepatic and gastric findings.