2026-03-06
Anas Messaoudi, Lokmane Taihi, Jacques Malghem
A case is reported of a woman presenting with a firm, tender right frontal lump. Ultrasound showed a small, irregular subgaleal mass with tiny bone surface perforations. Color Doppler ultrasound demonstrated compression–decompression induced alternating flow signals, indicating flow and reflux through the bone lesion. CT revealed an expansile osteolytic frontal lesion with a honeycomb pattern, consistent with an intraosseous venous malformation, which was confirmed histologically. The added value of compression–decompression color Doppler ultrasound in low‑flow calvarial vascular malformations is illustrated. Teaching point: Compression–decompression color Doppler ultrasound can reveal flow–reflux in low‑flow intraosseous venous malformations, contributing to the diagnosis.
2026-02-26
Diogo Carvalho, Luís Monteiro Cabral, Raquel Dias
Teaching point: Detection of intraosseous gas with a bubbly or irregular pattern on imaging should raise a strong suspicion for emphysematous osteomyelitis and prompt urgent antimicrobial treatment, particularly in immunocompromised patients without a history of trauma or surgery.
2026-02-20
Stijn De Bondt, Ione Limantoro, Hilde Bosmans, Geert Maleux, Nathalie Noppe, Michiel Herteleer
Photon‑counting computed tomography is the newest technological advancement in CT imaging allowing for an improved spatial resolution, inherent spectral information, and significant radiation dose reduction. These benefits may enhance diagnostic confidence and accuracy for radiologists and clinicians. Multiple clinical applications in musculoskeletal radiology benefit from this technology, including the reduction of metal artifacts, improved visualization of bone marrow edema, and better assessment of crystal arthropathies. This narrative review presents a comprehensive summary of the current advancements and applications of this emerging technology within musculoskeletal radiology using several illustrative cases.
2026-02-13
Simon Kaessner, Thiebault Saveyn, Benjamin Leenknegt
Carcinoid heart disease (CHD) is a serious and potentially life‑limiting complication of neuroendocrine tumors (NETs), resulting from prolonged systemic exposure to serotonin and other vasoactive substances, leading to fibrotic valvular degeneration. We report the case of a 71‑year‑old woman with metastatic small‑intestinal NET and associated carcinoid syndrome presenting with progressive exertional intolerance. Transthoracic echocardiography revealed severe tricuspid and moderate pulmonary regurgitation with right‑sided ventricular dilation. Cardiac MRI confirmed regurgitation and right‑heart remodeling consistent with CHD. Teaching point: This case highlights the diagnostic value of multimodal imaging, particularly cardiac MRI, in confirming and characterizing CHD in patients with metastatic NETs.
2026-02-06
Caroline Chabot, Lokmane Taihi
Teaching point: Combined MRI and ultrasound allow accurate identification of isolated digital Dupuytren’s cords, thereby supporting diagnosis and surgical planning.
2026-02-04
Dina Jleilati, Romain Gillard
Teaching point: Adrenal vein thrombosis should be considered in pregnant patients presenting with unexplained unilateral adrenal enlargement, even when the thrombus itself is not visualized, as early diagnosis allows effective anticoagulant management and prevention of adrenal insufficiency.
2026-01-20
Alexander Cotza, Liesbeth Meylaerts
Chronic ketamine abuse is a well‑recognized cause of lower urinary tract injury. Hepatobiliary manifestations are less frequently reported. A case is presented of concomitant ketamine‑induced uropathy and cholangiopathy in a young adult. This underscores the importance of considering ketamine toxicity as a multisystem disorder. Teaching point: Beyond the well‑recognized urinary tract involvement, radiologists attention is drawn to hepatobiliary manifestations of chronic ketamine toxicity.
2026-01-13
Emiel Declerck, Annelies Laerte, Henri Vandermeulen
Teaching point: Malakoplakia is a rare but clinically significant condition in immunocompromised patients and in these patients to be included in the differential diagnosis to distinguish this pseudotumoral process in a renal graft from malignant entities such as renal cell carcinoma and post‑transplant lymphoproliferative disease (PTLD).
2025-12-22
Xiang Zhuang, Hongliang Li, Qingyu Ji
Teaching point: Palatal myoepithelioma has almost pathognomonic progressive heterogeneous delayed enhancement on contrast CT, and a dedicated software application contributes to the surgical planning through hyper‑realistic rendering (HRR) 3D delineation of tumor extent/spatial relationships with critical adjacent structures.
2025-12-22
Rob Vernelen, Charlotte Vanhoenacker, Filip Vanhoenacker
Teaching point: The clues to the correct diagnosis of muscle sarcoidosis on MRI are the typical ‘dark star’ sign in the axial plane and the ‘three‑stripe’ sign in the longitudinal plane.