Posts

When Chest CT Reveals a Forgotten Tuberculosis Surgery: Plombage, Pseudomonas Pneumonia, and the Limits of Radiology AI

-
Image
How Historical Lucite Ball Plombage Complicates Chest Imaging Interpretation, Infectious Disease Assessment, and AI-Assisted Radiology MediAI | Clinical Radiology Case Study · Thoracic Imaging · Diagnostic Risk · Healthcare AI Author: Ph. D. GJ Lee Executive Answer Multiple spherical structures clustered in the upper hemithorax of an elderly patient may represent extrapleural plombage , an obsolete surgical treatment for pulmonary tuberculosis. Polymethyl methacrylate (PMMA), also known as Lucite, was historically implanted into the extrapleural space to compress diseased lung tissue. This case involves a man in his 80s with remote tuberculosis treated by Lucite ball plombage who subsequently developed severe pneumonia, recurrent septic shock, and fatal Pseudomonas aeruginosa infection. The central diagnostic challenge is recognizing historical surgical material while independently evaluating acute pulmonary infection. For contemporary radiology, the case also exposes an important lim...
Post a Comment
Read more

PSMA PET/CT–Avid Liver Lesions in Prostate Cancer: How to Recognize Hepatic Hemangiomas and Avoid False-Positive Metastatic Staging

-
Image
  A Case-Based Review of Imaging Findings, Differential Diagnosis, Clinical Consequences, and AI-Assisted Interpretation A focal liver lesion with increased prostate-specific membrane antigen (PSMA) uptake in a patient with prostate cancer raises concern for metastatic disease. However, PSMA uptake is not synonymous with malignancy. Hepatic hemangiomas, benign vascular lesions, can demonstrate increased uptake and mimic liver metastases on PSMA positron emission tomography/computed tomography (PET/CT). The key diagnostic principle is to correlate tracer uptake with CT morphology, contrast-enhancement patterns, clinical risk, and, when necessary, liver magnetic resonance imaging (MRI). In this case, two PSMA-avid liver lesions in a man in his 60s undergoing prostate cancer staging were ultimately diagnosed as benign hemangiomas in an external pathology report. Recognizing this pitfall can prevent incorrect upstaging and unnecessary investigations or treatment. Why This Case Matters ...
Post a Comment
Read more

Uterine Perforation After Childbirth: CT Findings of an Extrauterine IUD, Sentinel Clot, and Hemoperitoneum

-
Image
  How to Recognize Complete Uterine Perforation in a Postpartum Patient With Abdominal Pain and Missing IUD Strings Author: Dr. SangBock Lee Publication: ScholarGen MediAI Tagline: Where Medical Imaging & AI Meets Humanity Executive Answer: What Does CT Show in Uterine Perforation After IUD Insertion? Uterine perforation is an uncommon but potentially serious complication of intrauterine device (IUD) placement. In a postpartum patient presenting with abdominal pain and nonvisible IUD strings, contrast-enhanced computed tomography (CT) can identify complete uterine perforation, extrauterine device migration, and associated intra-abdominal bleeding. In this case, CT demonstrated a full-thickness defect at the uterine fundus, an adjacent sentinel clot, an IUD within the pelvic cavity, and hemoperitoneum. These findings prompted urgent surgical exploration, which confirmed the perforation and the displaced device. The central diagnostic lesson is to evaluate the integrity of the...
Post a Comment
Read more