18F-Fluorodeoxyglucose uptake and apparent diffusion coefficient in lung schwannoma

Ushiyama, Toshiki; Katsuda, Eisuke; Tanaka, Motoya; Numanami, Hiroki; Takahashi, Emiko; Baba, Kenji; Yamaguchi, Etsuro; Yokoi, Toyoharu; Haniuda, Masayuki; Kubo, Akihito

doi:10.1016/j.clinimag.2011.05.004

Cited by 7 publications

(5 citation statements)

References 6 publications

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“…[ 8 ] Although FDG-PET/CT is helpful in distinguishing between benign and malignant lung tumors, maximum standardized uptake values on FDG-PET/CT of schwannomas has been shown to be varied, probably due to the degrees of cellularity, microvascular density or vascular permeability. [ 30 , 31 ] It should be noted that FDG-PET/CT is not always practical in differentiating a schwannoma from a malignant tumor, as a schwannoma sometimes shows abnormal FDG accumulation, as was the case in this patient. Histological evaluation is the standard method used for the diagnosis of schwannoma.…”

Section: Discussionmentioning

confidence: 81%

Primary bronchial schwannoma: A case report

et al. 2022

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Rationale: Bronchial schwannomas are extremely rare among the benign tracheobronchial tumors and little are known about its epidemiology and optimal clinical management. Here, we report a case of bronchial schwannoma in a young Japanese man and clinical implications about epidemiology, symptom, diagnosis, and treatment of bronchial schwannoma.Patients concern: A 37-year-old man visited our department with a nodule incidentally found on his chest radiograph during a routine medical checkup.Diagnosis: The tumor was diagnosed as a bronchial schwannoma after pathological evaluation. Microscopically, the tumor consisted of spindle cell proliferation characterized by an alternating highly ordered cellular Antoni A component with occasional nuclear palisading and a loose myxoid Antoni B component. Tumor cells were immunoreactive for S100 but not for smooth muscle actin or KIT.Interventions: A video-assisted right middle and lower bilobectomy was performed.Outcome: He remains under observation without recurrence.Lessons: In our review, many reports have come from Asian countries. Bronchial schwannoma can occur within a wide range of age groups and in both men and women. No difference in incidence was observed between right and left bronchial tree. Bronchial schwannoma is sometimes difficult to differentiate from malignant diseases. We should include bronchial schwannoma as one of the differential diagnoses of primary bronchial tumors.

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Section: Discussionmentioning

confidence: 81%

Primary bronchial schwannoma: A case report

et al. 2022

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“…Often used for differentiating benign and malignant lesions, PET‐CT appears to be ineffective for differentiating schwannoma from malignant lesions. Variably high SUV levels have been reported for schwannomas .…”

Section: Discussionmentioning

confidence: 92%

“…On the other hand, primary intrapulmonary schwannoma is quite rare and its radiological diagnosis is challenging. Because schwannomas can exhibit high fluorodeoxyglucose (FDG) uptake on positron emission tomography (PET), they cannot be distinguished from malignant tumors . The diagnosis is thus largely based on pathological examination.…”

Section: Introductionmentioning

confidence: 99%

Mediastinal schwannoma with atypical localization diagnosed by endobronchial ultrasound

Ciftci

Kaya

Karaçay

et al. 2016

Clinical Respiratory J

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“…Especially, it is important to distinguish intranodal schwannoma from lymph node metastasis. However, PET‐CT appears to be ineffective for distinguishing schwannoma from malignancy because of variable fluorodeoxyglucose (FDG) uptake in schwannoma . Magnetic resonance imaging (MRI) can be useful for the diagnosis of intranodal schwannoma.…”

Section: Discussionmentioning

confidence: 99%

Schwannoma arising in mediastinal lymph node diagnosed by endobronchial ultrasound

Kang

Shin

Yoon

2019

Respirology Case Reports

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Schwannoma is a peripheral nerve sheath tumour that largely originates from the posterior mediastinum. Schwannoma arising in mediastinal lymph node is extremely rare. A 53‐year‐old female was referred to our hospital for the evaluation of enlarged mediastinal lymph node. Computed tomography scan revealed a non‐enhancing soft tissue mass at Rt. paratracheal area. Endobronchial ultrasound showed a well‐defined round‐shaped lymph node and transbronchial needle aspiration was performed from this lymph node. Pathologic findings revealed spindle cells with strong S100 positivity. Complete surgical excision was done. We report a rare case of schwannoma arising in mediastinal lymph node diagnosed by endobronchial ultrasound.

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18F-Fluorodeoxyglucose uptake and apparent diffusion coefficient in lung schwannoma

Cited by 7 publications

References 6 publications

Primary bronchial schwannoma: A case report

Primary bronchial schwannoma: A case report

Mediastinal schwannoma with atypical localization diagnosed by endobronchial ultrasound

Schwannoma arising in mediastinal lymph node diagnosed by endobronchial ultrasound

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