Nephrectomy for Metastatic Kidney Tumor in Patients with Differentiated Thyroid Cancer: A Report of Two Cases

Yamazaki, Haruhiko; Kishida, Takeshi; Noguchi, Go; Iwasaki, H.; Suganuma, Nobuyasu; Masudo, Katsuhiko; Nakayama, Hirotaka; Yamashita, Toshinari; Yamanaka, Takashi; Sugawara, Yuko; Matsubara, Yutaka; Kohagura, Kaori; Rino, Yasushi; Masuda, Munetaka

doi:10.1155/2018/7842792

Cited by 3 publications

(3 citation statements)

References 17 publications

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“…In veterinary medicine, a single investigation evaluated different abdominal conditions and CT was superior in lesion detection compared to US in dogs over 25 kg. However, renal nodules were not included 15 …”

Section: Introductionmentioning

confidence: 99%

“…However, renal nodules were not included. 15 The aim of this study was to evaluate the performance of US compared to CT in identifying one or multiple renal lesions in dogs and cats with focal renal nodules confirmed by cytology or histopathology. The study hypotheses were that a higher number of lesions would be visible in CT and that lesions' US features (especially size, echogenicity, deformation of the renal profile) and location (right versus left kidney) would influence their visibility in US.…”

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confidence: 99%

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Comparison of sonographic and CT findings for the identification of renal nodules in dogs and cats

Rossi

Gianni

Marconato

et al. 2023

Vet Radiology Ultrasound

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Ultrasonography (US) and computed tomography (CT) are used to diagnose neoplastic and non‐neoplastic focal renal lesions in dogs and cats; however, comparative studies between these two diagnostic tools are lacking. The aim of this retrospective, methods comparison study was to evaluate and compare the performance of US compared to CT in identifying at least one renal nodule in animals with confirmed focal renal lesions. Imaging studies of animals with uni‐ or bilateral renal nodules smaller than 3 cm that underwent both US and CT and that had a pathologically confirmed diagnosis were reviewed. Animals with renal cysts and infarcts were excluded. Recorded features for both modalities included the following: shape, size, number, localization, margins, renal profile. For CT only, recorded features also included attenuation (HU) and pattern of enhancement. For US only, recorded features also included echogenicity, echostructure, and rate of visibility. Final diagnosis was obtained by cytology or histopathology. Using CT, lesions were identified in all 39 (100%) kidneys of 18 dogs and seven cats. Most lesions were multiple, cortical, well‐defined, iso‐attenuating (precontrast), hypo‐attenuating, and moderately enhancing (postcontrast). Using US, lesions were identified in 29 of 39 (74%) kidneys. Overall, nine (31%) lesions were poorly visible; 10 (26%) kidneys appeared normal; in 17 (59%) organs, lesions’ number was underestimated. Isoechoic, non‐protruding lesions were difficult to identify by US. Ultrasonography underestimated renal lesions compared to CT in 59% of the kidneys (P = 0.001). Final diagnoses included metastatic disease (n = 16), infiltration by feline lymphoma (n = 4), primary neoplasia (n = 3), and non‐neoplastic benign lesions (n = 2).

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Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Comparison of sonographic and CT findings for the identification of renal nodules in dogs and cats

Rossi

Gianni

Marconato

et al. 2023

Vet Radiology Ultrasound

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“…In an autopsy series, Heitz et al86 found an incidence of 6.2% renal metastases in patients with differentiated thyroid carcinomas and 16.3% renal metastases in patients with anaplastic thyroid carcinoma. The prevalence in clinical series is lower and varies between 0.47%87 and 5.3% 6. Multiple case reports have been published in the literature26,88–99 and in general, metastatic renal tumors from thyroid primaries are multiple, bilateral, and usually accompanied by metastatic disease to other sites 85…”

Section: Primary Tumor Sitesmentioning

confidence: 99%

Secondary Tumors of the Kidney: A Comprehensive Clinicopathologic Analysis

Saeed

Osunkoya²

2022

Advances in Anatomic Pathology

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Metastases to the kidney are rare and were historically described in autopsy series, and the incidence ranged between 2.36% and 12.6%. However, in the contemporary literature with the improvements in imaging modalities (computed tomography scan and magnetic resonance imaging) and other health care screening services, metastatic tumors to the kidney are being diagnosed more frequently in surgical specimens. The utility of needle core biopsies in the primary evaluation of renal masses has also increased the number of sampled metastases, and as a result, only limited histologic material is available for evaluation in some cases and may potentially lead to diagnostic pitfalls. In the last decade, a few large clinical series have been published. In these series, the majority of metastatic tumors to the kidney are carcinomas, with the lung being the most common primary site. A significant number of the various tumor types with metastasis to the kidney are also associated with widespread metastases to other organs, and the renal metastasis may present several years after diagnosis of the primary tumor. The majority of secondary tumors of the kidney are asymptomatic, incidentally discovered, and solitary. There should be a high index of suspicion of metastasis to the kidney in patients with an associated enlarging renal lesion with minimal to no enhancement on imaging and tumor progression of a known high-grade nonrenal malignancy. Secondary tumors of the kidney can be accurately diagnosed by correlating histopathologic features with clinical and radiographic findings and the judicious use of ancillary studies.

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Solitary Renal Metastasis of Follicular Thyroid Carcinoma with Cervical Nodal Deposits

Saleh¹,

Hamdy²,

Shokeir³

et al. 2020

World Journal of Endocrine Surgery

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Nephrectomy for Metastatic Kidney Tumor in Patients with Differentiated Thyroid Cancer: A Report of Two Cases

Cited by 3 publications

References 17 publications

Comparison of sonographic and CT findings for the identification of renal nodules in dogs and cats

Comparison of sonographic and CT findings for the identification of renal nodules in dogs and cats

Secondary Tumors of the Kidney: A Comprehensive Clinicopathologic Analysis

Solitary Renal Metastasis of Follicular Thyroid Carcinoma with Cervical Nodal Deposits

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