Publications by authors named "Vishnu P Pulappadi"

Article Synopsis
  • Vaginal pathologies are significant causes of genital tract symptoms in women and are often overlooked with standard transabdominal ultrasonography; transperineal USG and MRI are preferred for detailed evaluation.
  • Conditions affecting different age groups include congenital anomalies in children and young adults, such as vaginal septum and atresia, while adults commonly experience benign lesions and malignant tumors, like squamous cell carcinoma.
  • Understanding imaging features of these vaginal diseases is essential for proper diagnosis and treatment planning, particularly after interventions like radiotherapy, which alters the vagina's morphology.
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To compare features of clinically defined subtypes of breast cancer on mammography (MG) and ultrasonography (USG). After obtaining approval from the institute ethics committee, a retrospective observational study was performed on biopsy-proven breast cancer patients who underwent baseline MG from 2016 to 2020. MG and USG features were evaluated and the patients were classified based on immunohistochemistry profile into -oestrogen receptor (ER)/progesterone receptor (PR) + , Her2neu-; -ER/PR-, Her2neu-; -Her2neu + .

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Aims: The conventional Seldinger and trocar techniques of percutaneous nephrostomy (PCN) have inherent limitations in infants and younger children. We studied the role of a novel coaxial technique of PCN in children under the age of 5 years in comparison to the conventional techniques.

Materials And Methods: This was a single-center feasibility trial based on 24 consecutive patients ( = 24 kidneys) under the age of 5 years, conducted over 12 months, substratified into Group I ( = 10): PCN with conventional Seldinger ( = 2) and trocar ( = 8) techniques and Group II ( = 14): PCN with proposed coaxial technique.

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Introduction: Multiphase MRI liver is the gold-standard imaging modality for staging hepatocellular carcinoma (HCC) in patients with cirrhosis. Often, small HCCs diagnosed on multiphase MRI are occult on B-mode ultrasound and multiphase CT (MPCT) and thus pose a challenge for loco-regional therapy. We adapted the technique of lipiodol CT in treating two such patients of small HCC.

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Background & Objectives: Imaging has been added to the International Federation of Gynecology and Obstetrics (FIGO) 2018 staging system of cervical carcinoma. This study was performed to assess the impact of imaging in staging and to ascertain the prevalence and pattern of nodal metastasis on contrast-enhanced computed tomography (CECT) in patients with cervical carcinoma who were treated based on FIGO 2009 staging system.

Methods: This retrospective study was conducted to evaluate all patients with biopsy-proven cervical carcinoma who underwent CECT of abdomen at a tertiary cancer centre in north India from April 2017 to April 2019 and for whom either baseline or follow up scans were available.

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Objective: To evaluate the role of shear wave elastography (SWE) of suspicious axillary lymph nodes and its combination with B-mode USG in predicting nodal metastasis in breast cancer patients.

Methods: Prospective observational study was performed from June 2018 to August 2020 on breast cancer patients with suspicious axillary nodes on USG. B-mode features (cortical thickness, effacement of fatty hilum, non-hilar blood flow and round shape) and SWE parameters (Emax, Emin, Emean and ESD) of the node with the thickest cortex were evaluated.

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Objective: To evaluate the role of axillary ultrasonography (axUS) and ultrasound-guided pre-operative wire localisation of pre-treatment positive clipped node (CN) for prediction of nodal response to neoadjuvant chemotherapy (NACT) in node positive breast carcinoma patients.

Methods And Materials: A prospective study was conducted between June 2018 and August 2020 after Ethics Committee approval. Breast carcinoma patients (cT1-cT4b) with palpable axillary nodes (cN1-cN3) and suitable for NACT were recruited after written informed consent.

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Hemorrhagic complications are uncommon after percutaneous transhepatic biliary drainage. The presenting features include bleeding through or around the drainage catheter, hematemesis or melena. Diagnosis requires cholangiography, CT angiography or conventional angiography.

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Corpus luteum rupture presenting as acute abdomen is an underdiagnosed condition. Though a self-limiting entity, its differentiation from other causes is essential to prevent unnecessary surgical procedures. The radiologist should be aware of the possibility of a ruptured haemorrhagic ovarian cyst in a female of reproductive age group presenting with pelvic pain and a large amount of haemorrhagic ascites.

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