Research Output

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Duodenal hematoma: multiple causes for an underestimated diagnose. A case series

2024 , SCHIAPPACASSE FAUNDES, GIANCARLO , GONZALEZ, PABLO , Óscar Campos , Fernanda del Campo , Francisca Santorcuato

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COVID-19: Abdominal and Pelvic Imaging Findings: A Primer for Radiologists

2021 , Sofía Palacios , SCHIAPPACASSE, GIANCARLO , Rosario Valdes , Ignacio Maldonado , Cristian Varela

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Cervicalgia and anomalous insertion of the levator scapulae muscle. Case report

2024 , SCHIAPPACASSE FAUNDES, GIANCARLO , Manuel Gómez-Solís , Rolando Cocio , Nicolás Molina-Vásquez , Felipe Sáez-Checura

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Caracterización del perfil epidemiológico, patológico, radiológico y de manejo de los pacientes con tumores estromales del tubo digestivo. Experiencia chilena de cinco años

2024 , SCHIAPPACASSE FAUNDES, GIANCARLO , R. Cocio , J. Cristi , J. Torres , F. Aliaga , Macarena Rodriguez Vial , J. Hepp , A. Castiblanco

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Secondary rectal linitis plastica caused by prostatic adenocarcinoma - magnetic resonance imaging findings and dissemination pathways: A case report

2024 , LABRA WEITZLER, ANDRES ANTONIO , SCHIAPPACASSE FAUNDES, GIANCARLO , Rolando Alfonso Cocio , Jorge Tomás Torres , GONZALEZ COFRE, FERNANDO OMAR , Alberto Cristi , Marcela Schultz

BACKGROUND Secondary rectal linitis plastica (RLP) from prostatic adenocarcinoma is a rare and poorly understood form of metastatic spread, characterized by a desmoplastic response and concentric rectal wall infiltration with mucosal preservation. This complicates endoscopic diagnosis and can mimic gastrointestinal malignancies. This case series underscores the critical role of magnetic resonance imaging (MRI) in identifying the distinct imaging features of RLP and highlights the importance of considering this condition in the differential diagnosis of patients with a history of prostate cancer. CASE SUMMARY Three patients with secondary RLP due to prostatic adenocarcinoma presented with varied clinical features. The first patient, a 76-year-old man with advanced prostate cancer, had rectal pain and incontinence. MRI showed diffuse prostatic invasion and significant rectal wall thickening with a characteristic "target sign" pattern. The second, a 57-year-old asymptomatic man with elevated prostate-specific antigen levels and a history of prostate cancer exhibited rectoprostatic angle involvement and rectal wall thickening on MRI, with positron emission tomography/computed tomography PSMA confirming the prostatic origin of the metastatic spread. The third patient, an 80-year-old post-radical prostatectomy, presented with refractory constipation. MRI revealed a neoplastic mass infiltrating the rectal wall. In all cases, MRI consistently showed stratified thickening, concentric signal changes, restricted diffusion, and contrast enhancement, which were essential for diagnosing secondary RLP. Biopsies confirmed the prostatic origin of the neoplastic involvement in the rectum. CONCLUSION Recognizing MRI findings of secondary RLP is essential for accurate diagnosis and management in prostate cancer patients.

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Multimodality Imaging of Congenital Variants in the Gallbladder Pictorial Essay

2019 , WHITTLE, CAROLINA , Velimir Skoknic , Ignacio Maldonado , Giancarlo Schiappacasse , Georgette Pose

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Caso radiológico de desafío diagnóstico

2014 , Daniel Pérez C. , LABRA WEITZLER, ANDRES ANTONIO , Jorge Pérez G , SCHIAPPACASSE FAUNDES, GIANCARLO , SILVA FUENTE ALBA, CLAUDIO SERGIO

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Hernia diafragmática complicada con rotura de víscera hueca dentro de la cavidad torácica.

2013 , MARCELO PARRA N. , JOSÉ ORTEGA S. , RAÚL BERRÍOS S , JOSÉ T. DE OSSÓ A. , STEFANO RINALDI C , SCHIAPPACASSE FAUNDES, GIANCARLO

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Spontaneous dissection of visceral arteries. A series of cases

2019 , SCHIAPPACASSE, GIANCARLO , Javier Cacho , María Fernanda Tapia , Fernando Ibáñez

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Interobserver Agreement for the PI-RADS v2 Validation

2019 , LABRA WEITZLER, ANDRES ANTONIO , SILVA FUENTE ALBA, CLAUDIO SERGIO , SCHIAPPACASSE, GIANCARLO , BARAHONA ZULETA, DANIELA FRANCESCA , Skoknic, Velimir