Publications by authors named "Narvir S Chauhan"

Both myxedema crisis and Sheehan's syndrome are uncommon conditions. The first-time presentation as myxedema crisis is rare in Sheehan's syndrome. The present study describes the case of a 31-year-old female patient who presented with altered sensorium in the emergency room.

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Background: This study aimed to compare the ultrasound (USG) and fetal magnetic resonance imaging (MRI) findings in the evaluation of congenital fetal anomalies and to determine whether the management is changes significantly if MRI is combined with USG.

Methods: In this prospective observational cohort study, we performed fetal MRI in 90 consecutive cases of fetuses diagnosed or suspected as having congenital anomalies on a prior level II USG scan. We then compared the USG and MRI findings of each anomaly according to the diagnostic information yielded by each modality.

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Background: Psoriasis is a chronic dermatosis with potential to cause systemic disease by triggering dysmetabolism, such as metabolic syndrome and nonalcoholic fatty liver disease (NAFLD). We studied the relationship and associations between NAFLD and clinical features, including age, gender, disease duration, and severity of psoriasis in our patients.

Methods: This cross-sectional study comprised 61 (m:f, 43:19) patients without pre-existing comorbidities and matched 24 (m:f, 16:8) healthy controls aged between 20 and 68 years.

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Spontaneous renal subcapsular haematoma is not a common clinical condition. It is mainly caused by renal tumours, vascular diseases, trauma, anticoagulation, and urological interventions. Patients present with sudden onset abdominal pain mainly in the flank region, haematuria, and abdominal tenderness.

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Background: A number of metaphorical imaging signs have been described in the radiology literature.

Objective: These signs not only make the learning process easier but also increase diagnostic confidence. For this reason, these signs are quite popular among radiologists.

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Purpose: The purpose of this study was to diagnose and characterise chronic obstructive pulmonary disease (COPD) into its forms, patterns, and severity using MDCT.

Material And Methods: In this prospective study, spirometric and MDCT evaluation was done in 52 consecutive patients diagnosed with COPD. In each patient six segmental bronchi were evaluated for CT morphometric indices of bronchial wall thickness (BWT) and wall area percentage (WAP).

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Background: A mismatch between the prosthesis size and bone may result in a number of complications. Keeping this in view, it is essential to analyze the morphological differences of the knee observed across various ethnic groups to improve the performance of total knee arthroplasty (TKA). The current study was aimed at studying the computed tomography (CT) profile of distal femur in Indian population and evaluates it morphologically.

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Progressive facial hemiatrophy or Parry-Romberg syndrome is a rare disorder of unknown etiology which is characterized by atrophy of the one side of the face and various neurological complications. Clinical overlap is sometimes seen with linear scleroderma or en coup de sabre. We present such a case that manifested clinically with partial epilepsy and novel psychiatric complaints of agoraphobia.

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Background: To diagnose and characterize the perianal fistulous disease using Magnetic resonance imaging (MRI) in a hilly and rural area of North India.

Material/methods: This prospective hospital based study was conducted for a period of one year from April 2014 to April 2015 in the departments of Radiodiagnosis and Surgery of our institute. A total of 50 consecutive patients presenting with perianal fistulous disease fulfilling the inclusion and exclusion criteria were included in the study and taken up for MRI.

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Background: To evaluate the accuracy of high resolution ultrasound (USG) and MRI in the diagnosis of rotator cuff tears (RCT) and to determine if high resolution USG compares favorably in sensitivity and specificity to MRI in the diagnosis of rotator cuff injury.

Material/methods: In this prospective comparative study, 40 patients with clinically suspected rotator cuff tears underwent both ultrasound and MRI of the shoulder. Out of these 40 patients, 31 patients who had positive findings for rotator cuff tears on ultrasound and/or MRI were finally included in the study while the remaining 9 patients with negative or unrelated findings were excluded.

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Background: Paediatric renal cell carcinoma (RCC) is a rare neoplasm which differs significantly in its clinico-pathological behaviour from the adult variant. The clear cell variant constitutes a relatively small histological subset of this neoplasm.

Case Report: We present a very unusual, pathologically proven case of clear cell variety of pediatric RCC which showed invasion into the pelvicalyceal system with contiguous extension up to the urinary bladder.

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Background: Rapunzel syndrome is a rare and unique form of trichobezoar, in which a cast of hairs is formed in the stomach with its 'tail' extending up to varying lengths into the small bowel. Almost all cases described in literature are of 'classic' and more common form of Rapunzel. Sometimes however, the tail of bezoar is broken into smaller fragments.

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Background: Wandering spleen is a rare condition which if uncorrected, can result in torsion and infarction. Clinical presentation of a wandering spleen can vary from asymptomatic abdominal mass to acute abdominal pain. Radiological investigations play a pivotal role in diagnosis as the clinical diagnosis is usually impossible.

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We are presenting two unique cases of lymphangiomatosis without visceral and bony involvement and critically discussing the nomenclature used in the extant literature. The first case was a 12-year-old boy with ill-defined mass on the right cheek extending into the ipsilateral orbit leading to conjunctival lesion. The second case was of a 14-week-old infant showing diffuse swelling on nape of the neck.

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Background: Failure to detect uterine perforation during surgical abortion may result in adverse patient outcome besides having medicolegal implications. This rare case of uterine perforation was diagnosed seven days after abortion and underscores the importance of remaining vigilant for this complication during and after the procedure.

Case: A female underwent surgical abortion at sixteen weeks gestation and was discharged after the procedure, assuming no complication.

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Anomalies of third or fourth branchial apparatus origin are very uncommon and present as recurrent neck infections or thyroiditis with a predominant left-sided involvement. Radiological diagnosis requires a high index of suspicion and is critical for initiation of proper treatment. We describe a case of branchial sinus of pyriform fossa with external fistulization that presented in adulthood and was diagnosed on computed tomographic scan.

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Dual thyroid ectopia is a very rare clinical entity, and only 28 cases have been reported previously in the literature. We describe another case in which CT established the diagnosis preoperatively and prevented an unnecessary surgery.

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