Publications by authors named "John du Parcq"

Background And Aims: The simplified magnetic resonance enterography [MRE] index of activity [sMARIA], London, and 'extended' London, scoring systems are widely used in Crohn's disease [CD] to assess disease activity, although validation studies have usually been single-centre, retrospective, and/or used few readers. Here, we evaluated these MRE indices within a prospective, multicentre, multireader, diagnostic accuracy trial.

Methods: A subset of participants [newly diagnosed or suspected of relapse] recruited to the METRIC trial with available terminal ileal [TI] biopsies was included.

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Pulmonary hyalinising granuloma is a very rare disease often presenting as multiple smooth rounded nodules within the lung parenchyma and mimicking metastatic disease. Solitary pulmonary hyalinising granuloma is an even rarer subgroup, and to our knowledge, there have been no endoluminal pulmonary hyalinising granulomas reported. A 36-year-old female non-smoker with no significant past medical history presented with a persistent cough and was found to have a right lower lobe bronchial lesion causing lower lobe obstruction.

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The management of non-small cell lung cancer has significantly changed over the past few years through greater understanding of tumour biology. The identification of activating mutations has led to the development of targeted agents. Coexisting mutations in non-small cell lung cancer is uncommon, particularly in squamous cell carcinoma.

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Background And Aims: Diffuse cavernous haemangioma of the rectum (DCHR) is a rare benign vascular neoplasm that affects mainly young adults and can present with rectal bleeding or massive haemorrhage. We report a case of DCHR masquerading as proctitis which was diagnosed many years ago following colonoscopy. This is the first case where the DCHR was resected with subsequent formation of a colonic J pouch versus conventional colo-anal anastomosis in order to maintain good bowel function.

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Mucinous tubular and spindle cell carcinoma (MTSCC) is a rare, distinctive renal neoplasm characterized by an admixture of cuboidal cells in tubules and sheets of spindle cells, typically with low-grade nuclei and a myxoid or mucinous background. It is characteristically of low malignant potential, and only rare metastatic cases have been reported. We describe a case in which the patient presented with extensive regional and distant metastases, but both primary and metastatic tumor showed the typical histomorphology of bland cuboidal or spindle cells lacking pleomorphism, mitoses, and necrosis.

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