LABRA WEITZLER, ANDRES ANTONIO

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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
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SCHIAPPACASSE FAUNDES, GIANCARLO
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Rolando Alfonso Cocio
;
Jorge Tomás Torres
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GONZALEZ COFRE, FERNANDO OMAR
<jats:p>BACKGROUND</jats:p> <jats:p>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.</jats:p> <jats:p>CASE SUMMARY</jats:p> <jats:p>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.</jats:p> <jats:p>CONCLUSION</jats:p> <jats:p>Recognizing MRI findings of secondary RLP is essential for accurate diagnosis and management in prostate cancer patients.</jats:p>
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Caso radiológico de desafío diagnóstico
(2014)
Daniel Pérez C.
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LABRA WEITZLER, ANDRES ANTONIO
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Jorge Pérez G
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SCHIAPPACASSE FAUNDES, GIANCARLO
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SILVA FUENTE ALBA, CLAUDIO SERGIO
2
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Magnetic resonance imaging of paraurethral and paravaginal lesion: relevant diagnoses, key findings and surgical correlation
(AME Publishing Company, 2025-05)
Andrés Labra
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Rolando Cocio
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Álvaro Saavedra
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Giancarlo Schiappacasse
;
Fernanda Blaskovic
11
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Evaluación de fuerza de concordancia de hallazgos de endometriosis en RM y laparoscopía. Análisis de una serie de casos.
(2021)
Alvaro Zuñiga G.
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LABRA WEITZLER, ANDRES ANTONIO
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SILVA FUENTE ALBA, CLAUDIO SERGIO
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María Ignacia Fauré R.
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María Fernanda Tapia C
2
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MRI/TRUS fusion vs. systematic biopsy: intra-patient comparison of diagnostic accuracy for prostate cancer using PI-RADS v2
(2020)
Andrés Labra
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Claudio Silva
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Fernando González
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Gerhard Franz
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Rodrigo Pinochet
8Scopus© Citations 12
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PI-RADS 2 score utility in clinical practice. Is histologic asses justified? [Utilidad del score PI-RADS 2 en la práctica clínica ¿se justifica el estudio histológico?]
(2017)
Andrés Labra W
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Juan Pablo Olivares C
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María Fernanda Tapia C
;
Claudio Silva F
1
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Manifestaciones abdominales de las anomalías del Situs Ambiguous en el adulto: A propósito de cuatro casos
(2013)
Gonzalo Corral G
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LABRA WEITZLER, ANDRES ANTONIO
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SCHIAPPACASSE FAUNDES, GIANCARLO
8Scopus© Citations 6
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Caracterización imagenológica de los tumores de intestino delgado resecados en nuestra institución entre los años 2017 y 2020
(2022)
SCHIAPPACASSE, GIANCARLO
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LABRA WEITZLER, ANDRES ANTONIO
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Juan P. Laguna
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Fernando Mercado
;
Bastián Lara
1
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Tumores que invaden la vena cava inferior: revisión pictográfica de los principales hallazgos imagenológicos en tomografía computarizada y resonancia magnética
(2016)
Matías Molina
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SCHIAPPACASSE, GIANCARLO
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LABRA WEITZLER, ANDRES ANTONIO
2Scopus© Citations 4
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Condiloma acuminado gigante (Tumor de Buschke Lõwenstein): Serie de 7 casos clínicos y revisión de la literatura
(2014)
Nelson Montaña C
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Andrés Labra W
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Giancarlo Schiappacasse F
41Scopus© Citations 8

LABRA WEITZLER, ANDRES ANTONIO

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