scholarly journals Multiple Focal Nodular Hyperplasia and Steatohepatitis: Atypical Imaging Characteristics

2001 ◽  
Vol 15 (2) ◽  
pp. 137-142 ◽  
Author(s):  
Robert P Myers ◽  
Dónal Downey ◽  
Subrata Chakrabarti ◽  
Paul J Marotta
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Malignant Melanoma ◽  
Focal Nodular Hyperplasia ◽  
Resonance Imaging ◽  
Benign Condition ◽  
Imaging Characteristics ◽  
Ultrasound Computed Tomography ◽  
Nodular Hyperplasia ◽  
Hepatic Lesions

Focal nodular hyperplasia is a rare, benign condition of the liver. A 28-year-old woman with malignant melanoma, mild liver enzyme abnormalities, steatohepatitis and newly documented hepatic lesions is described. Ultrasound, computed tomography and magnetic resonance imaging suggested only areas of focal fatty sparing but could not eliminate the concern for metastases. A99mtechnetium-labelled sulphur colloid scan, however, revealed areas of increased uptake consistent with multiple focal nodular hyperplasia. This diagnosis was ultimately confirmed with a liver biopsy. The investigation of a patient with a malignancy and expanding hepatic lesions is challenging. This case illustrates the usefulness of the99mtechnetium-labelled sulphur colloid scan in the evaluation of patients with hepatic lesions.

Imaging findings of trichilemmal cyst and proliferating trichilemmal tumour

2021 ◽  
pp. 197140092110177
Author(s):  
Masaya Kawaguchi ◽  
Hiroki Kato ◽  
Natsuko Suzui ◽  
Tatsuhiko Miyazaki ◽  
Hiroyuki Tomita ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Resonance Imaging ◽  
Hounsfield Units ◽  
Soft Tissue Density ◽  
Cutaneous Lesions ◽  
Imaging Characteristics ◽  
Trichilemmal Cyst ◽  
T1 Hyperintensity

Purpose The purpose of this study was to evaluate computed tomography and magnetic resonance imaging of benign trichilemmal cysts and proliferating trichilemmal tumours. Methods Nineteen histologically confirmed cutaneous lesions with trichilemmal keratinisation (12 trichilemmal cysts and seven proliferating trichilemmal tumours) were enrolled. Among them, 10 lesions (six trichilemmal cysts and four proliferating trichilemmal tumours) were examined by computed tomography, while 13 lesions (eight trichilemmal cysts and five proliferating trichilemmal tumours) were examined by magnetic resonance imaging. Computed tomography and magnetic resonance imaging characteristics were retrospectively reviewed. RESULTS Sixteen lesions (84%, 10 trichilemmal cysts and six proliferating trichilemmal tumours) occurred on the scalp. Lobulated margins were observed in five lesions (26%, three trichilemmal cysts and two proliferating trichilemmal tumours). With respect to computed tomography attenuation, calcification (>200 Hounsfield units) was observed in seven lesions (70%, five trichilemmal cysts and two proliferating trichilemmal tumours), hyperdense areas (≥80 and ≤200 Hounsfield units) in six (60%, three trichilemmal cysts and three proliferating trichilemmal tumours), and soft tissue density areas (<80 Hounsfield units) in nine (90%, five trichilemmal cysts and four proliferating trichilemmal tumours). On T1-weighted images, intratumoral hyperintensity was only observed in eight trichilemmal cysts but no proliferating trichilemmal tumours (100% vs. 0%, P<0.01). On T2-weighted images, hypointense rim and intratumoral hypointensity was observed in all 13 lesions (100%, eight trichilemmal cysts and five proliferating trichilemmal tumours), and linear or reticular hypointensity was observed in 10 (77%, six trichilemmal cysts and four proliferating trichilemmal tumours). Conclusion Trichilemmal cysts and proliferating trichilemmal tumours predominantly occurred on the scalp with calcification, and usually exhibited linear or reticular T2 hypointensity. Intratumoral T1 hyperintensity may be a useful imaging feature for differentiating trichilemmal cysts from proliferating trichilemmal tumours.

scholarly journals Mucinous Neoplasm of the Appendix as a Mimic of Cystic Adnexal Pathology

2018 ◽  
Vol 8 ◽  
pp. 32 ◽  
Author(s):  
Chris Hutchinson ◽  
Jonathan Lyske ◽  
Vimal Patel ◽  
Gavin Low
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Mucinous Tumor ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Mucinous Neoplasm ◽  
Ultrasound Computed Tomography ◽  
Adnexal Pathology

Pelvic pain presents a common diagnostic conundrum with a myriad of causes ranging from benign and trivial to malignant and emergent. We present a case where a mucinous neoplasm of the appendix acted as a mimic for tubular adnexal pathology on imaging. With the associated imaging findings on ultrasound, computed tomography, and magnetic resonance imaging, we wish to raise awareness of mucinous tumors of the appendix when tubular right adnexal pathology is present both in the presence of pelvic or abdominal pain or when noted incidentally. Tubular pathology such as uncomplicated paraovarian cysts or hydrosalpinx is frequently treated conservatively with long-interval follow-up imaging or left to clinical follow-up. Thus, if incorrectly diagnosed as tubular pathology, an appendix mucocele or mucinous neoplasm of the appendix is likely to be undertreated. We wish to clarify some of the confusion around nomenclature and classification of the multiple entities that are comprised by the terms mucocele and mucinous tumor of the appendix.

scholarly journals The radiologic diagnosis of skeletal dysplasias: past, present and future

2020 ◽  
Vol 50 (12) ◽  
pp. 1650-1657 ◽  
Author(s):  
Amaka C. Offiah ◽  
Christine M. Hall
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Historical Overview ◽  
Resonance Imaging ◽  
Radiologic Diagnosis ◽  
Cross Sectional ◽  
Skeletal Dysplasias ◽  
Ultrasound Computed Tomography ◽  
Tremendous Impact ◽  
Subsequent Introduction

Abstract Skeletal dysplasias have been recognised since recorded history began. The advent of radiography at the beginning of the 20th century and the subsequent introduction of departments of radiology have had tremendous impact and allowed conditions to be identified by their specific radiographic phenotypes. This has been enhanced by the addition of cross-sectional modalities (ultrasound, computed tomography and magnetic resonance imaging), which have allowed for prenatal recognition and diagnosis of skeletal dysplasias, and by the recent explosion in identified genes. There are more than 400 recognised skeletal dysplasias, many of which (due to their rarity) the practising clinician (radiologist, paediatrician, geneticist) may never come across. This article provides a historical overview of aids to the radiologic diagnosis of skeletal dysplasias.

scholarly journals Evaluation of diffuse liver steatosis by ultrasound, computed tomography, and magnetic resonance imaging: which modality is best?

2009 ◽  
Vol 33 (2) ◽  
pp. 110-115 ◽  
Author(s):  
Aliya Qayyum ◽  
Daryl M. Chen ◽  
Richard S. Breiman ◽  
Antonio C. Westphalen ◽  
Benjamin M. Yeh ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Liver Steatosis ◽  
Resonance Imaging ◽  
Ultrasound Computed Tomography
Sign in / Sign up

Export Citation Format

Share Document