ResearchPad - interesting-image https://www.researchpad.co Default RSS Feed en-us © 2020 Newgen KnowledgeWorks <![CDATA[Intense <sup>18</sup>F-Flourodeoxyglucose Uptake in Brachial Plexus of Patients with Brachial Plexopathy]]> https://www.researchpad.co/article/elastic_article_14442 Brachial plexopathy is a significant cause of pain and disability in patients with breast cancer. Major causes of brachial plexopathy in patients with breast cancer are metastatic invasion or radiation damage to the plexus. Differentiation between the two pathologies is important for appropriate treatment planning. The complicated anatomy of the plexus makes this a difficult area to image accurately. Magnetic resonance imaging (MRI) is the imaging modality of choice for diagnostic evaluation of these cases. We presented a case to demonstrate the role of 18F-flourodeoxyglucose positron emission tomography/computerized tomography for confirming metastatic brachial plexopathy when MRI findings were suspicious and for differentiating radiation-induced brachial plexopathy from metastatic plexopathy.

]]>
<![CDATA[Lymphoblastic Involvement of the Bone Marrow as a Cause of Superscan Appearance in <sup>18</sup>F-Fluorodeoxyglucose Positron Emission Tomography/ Computed Tomography]]> https://www.researchpad.co/article/elastic_article_14440 The 18F-fluorodeoxylucose (FDG) positron emission tomography (PET) is the gold standard imaging modality in the staging of lymphoma. The superscan appearance in the FDG PET/computerized tomography (CT) imaging might be because of benign diseases or malignant infiltrations. This case report presents lymphomatous blastic infiltration as a cause of superscan appearance in 18F-FDG PET/CT.

]]>
<![CDATA[Findings of Gynecomastia That Developed in Follow-up Secondary to Bicalutamide Treatment on Bone Scan]]> https://www.researchpad.co/article/elastic_article_14436 Prostate cancer is a common neoplastic disease especially in elder patients. Metastatic prostate disease has low five-year survival rate. Bicalutamide is an androgen receptor antagonist that acts as an inhibitor by competizing androgen receptors in the target tissue and used as a treatment option in prostate cancer. Bone scan was performed on a 79-year-old male with prostate cancer in our department. Blood pool images showed bilateral hyperemia in the breast regions which was not present on the previous scan one year ago. On physical examination, there was bilateral painful gynecomastia. It was learned that the patient was given Bicalutamide therapy after the first bone scan. Blood pool images may detect this side effect and should be evaluated with physical examination in case of clinical doubt.

]]>
<![CDATA[Penile Metastasis from Renal Cell Carcinoma: Diagnosis and Posttreatment Response Seen on Fluorodeoxyglucose Positron Emission Tomography-Computed Tomography]]> https://www.researchpad.co/article/N7e708d40-de20-4f90-b58c-f02051d7902f

We present fluorodeoxyglucose positron emission tomography–computed tomography (FDG PET-CT) findings in an extremely rare case of penile metastasis from renal cell carcinoma. A 66-year-old male, a known case of renal cell carcinoma, underwent FDG PET-CT. The scan showed metabolically active cervical lymph nodes, lytic skeletal lesions, deposit in the left adrenal gland, and nodules in the bilateral lungs, indicating metastatic disease. In addition, a hypermetabolic lesion was seen in the corpus cavernosum of the shaft of the penis, suggestive of penile metastasis. Follow-up PET-CT after tyrosine kinase inhibitor therapy showed reduction in size and metabolic activity of all previously seen lesions including penile lesion, suggestive of favorable response to therapy.

]]>
<![CDATA[Juvenile Nasal Angiofibroma on 68Ga-DOTANOC PET/CT: Exploring Theranostic Avenues]]> https://www.researchpad.co/article/N82d87dc1-b8bd-47ac-8585-1c7df49f1755

Somatostatin (SST) cell surface receptors (SSTRs) are expressed in many different malignant, benign, and neuroendocrine tumors. SSTRs are also expressed in the endothelium of human vessels during angiogenesis and not in the nonproliferating vessels. We present a case of 19-year-old boy with juvenile nasal angiofibroma (JNA), who underwent 68Ga-DOTANOC PET/CT to explore SSTRs expression and theranostic potential. The scan revealed high uptake in the tumor, and in certain areas, the uptake was similar to that of the pituitary gland. Performance of DOTANOC PET/CT in JNA opens up new frontiers with respect to radiological staging, early recurrence identification, better delineation from postoperative scar tissue, possible preoperative treatment with SST analogs, and perhaps even radiopharmaceutical based-ligand therapy of inoperable/residual/recurrent JNAs in the future.

]]>
<![CDATA[Low-Grade Thymoma with Osseous and Pulmonary Metastases: Role of 18F-Fluorodeoxyglucose Positron Emission Tomography–Computed Tomography in Initial Staging]]> https://www.researchpad.co/article/Neffa2ee4-8281-40f1-887e-656a131ac5d0

Thymomas are rare anterior mediastinal tumors that originate in the epithelial cells of the thymus and have a rare propensity to metastasize to extrathoracic locations unless it is a histologic high-grade neoplasm (type B and above). We describe a case of 50-year-old woman diagnosed with type AB thymoma and the role of 18F-fluorodeoxyglucose positron emission tomography–computed tomography in accurate delineation of extrathoracic metastases during initial staging.

]]>
<![CDATA[Herniated Urinary Bladder Detected on 18F-Fluorodeoxyglucose Positron-Emission Tomography/Computed Tomography Scan Imitating as 18F-Fluorodeoxyglucose Avid Lesion]]> https://www.researchpad.co/article/N636b63cf-bca2-439a-986f-7577b673fb88

Inguinal hernia is a common pathology seen in the general population. However, the presence of herniated urinary bladder in the inguinal canal is a rare condition. Most cases are asymptomatic and are detected incidentally either during surgery or on imaging. Here, we present a report, where a patient, diagnosed case of carcinoma esophagus, was referred for staging 18F-fluorodeoxyglucose positron-emission tomography/computed tomography (FDG PET/CT) scan and revealed FDG uptake in the right inguinal canal, other than primary and metastatic lesions and corresponding CT and fused PET/CT images revealed herniated urinary bladder in the inguinal canal.

]]>
<![CDATA[Rare Case of Diffuse Splenic Uptake on Methylene Diphosphonate Bone Scan in a Patient with Sickle Cell Disease]]> https://www.researchpad.co/article/Nf4de2291-8e6d-40c9-8752-6e4bcde7dfac

Extraskeletal tracer uptake in methylene diphosphonate (MDP) bone scan is not a common finding. There have been several case reports in the literature showing diffuse splenic uptake in MDP bone scan. We present a case of sickle cell disease, which showed diffuse splenic uptake on MDP whole-body bone scan.

]]>
<![CDATA[A Case of Left Groin Lymphocele Postoperatively]]> https://www.researchpad.co/article/Nb63a0e5c-5e8e-4229-91d1-9ff2e31294b5

Many surgical procedures may injure lymphatic channels unexpectedly, such as lymph node dissections, transplantations, and vessel reconstructions, and will lead to iatrogenic lymphatic leakage. We hereby present a case of postoperative lymphocele diagnosed more precisely by single-photon emission computed tomography (SPECT)/CT fusion imaging.

]]>
<![CDATA[Inflammatory Myofibroblastic Tumor: Findings on 68Ga-DOTA-NOC Positron-emission Tomography-Computed Tomography]]> https://www.researchpad.co/article/N2f139d4d-4318-48fd-a4b3-c716a13beff1

Inflammatory myofibroblastic tumor (IMT) or inflammatory pseudotumors are a rare group of tumors usually affecting children and young adults. They occur in various anatomic locations, with most common being the lung accounting for almost 95% of the cases. We present a case of a 4-year-old girl who presented with fever and dull abdominal pain for 6 months with a clinically palpable left hypochondrium mass. On suspicion of mesenteric/gastric neuroendocrine tumor, 68Ga-DOTA-NOC positron-emission tomography-computed tomography was done; however, the biopsy revealed IMT.

]]>
<![CDATA[Isolated Mandibular Metastasis Detected on Staging 18FDG PET/CT Scan in a Case of Carcinoma Urinary Bladder]]> https://www.researchpad.co/article/N576902c9-cbe7-4c72-910e-1700376053df

Isolated mandibular metastasis is very rare from carcinoma urinary bladder with no locoregional lymph node involvement. Here, we present a case where staging fluorodeoxyglucose - positron emission tomography - computed tomography (FDG PET-CT) scan showed an FDG avid primary lesion in carcinoma urinary bladder with FDG avid erosion in the right mandibular condyle. However, since no pelvic lymph nodes were involved, the mandibular lesion was kept on follow-up and cystoprostatectomy was performed. Follow-up FDG PET-CT scan after 6 months revealed an osteolytic destructive lesion in the mandible with associated soft tissue component and the biopsy confirmed this as metastatic lesion.

]]>
<![CDATA[A Rare Case of Sinonasal Malignant Melanoma - Local, Regional, and Distant Spread Accurately Detected by 18F Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography]]> https://www.researchpad.co/article/Ncd71957d-a671-4988-ba8e-e9193bccc0ca

Melanomas are usually cutaneous in origin but rarely can also arise from the mucosal linings in the body. Sinonasal melanomas arise from the mucosa of the nasal cavity and paranasal sinuses, which account for approximately 50% of mucosal melanomas in the body. 18F fluorodeoxyglucose positron emission tomography-computed tomography (18F-FDG PET/CT) has proven its role in malignant melanoma in staging especially in stage III and IV disease, restaging, assessing response to therapy and had affected in treatment change in significant number of cases. We present a case of sinonasal melanoma who underwent FDG PET/CT for staging and showed cervical lymph node and marrow metastases.

]]>
<![CDATA[A Case of Metachronous Triple Carcinoma with Synchronous Double Primary Carcinoma on 18F-Fluorodeoxyglucose Positron Emission Tomography-Computed Tomography]]> https://www.researchpad.co/article/Nae85a32d-8832-4b80-aac2-6aa4e645dc5f

Multiple primary malignancies in a single patient are exceedingly rare, but their prevalence has increased in recent decades due to prolonged survival rates supported by the advent of newer and better generation of chemotherapeutic agents as well as advances in cancer detectability facilitated by sophisticated modalities such as positron emission tomography-computed tomography. Here, we discuss a case of a 66-year-old male who recovered completely from lung carcinoma but subsequently developed synchronous gall bladder and gastric carcinoma after 1 year.

]]>
<![CDATA[Pulmonary Recurrence of Lymphomatoid Granulomatosis Diagnosed on F-18 FDG PET/CT]]> https://www.researchpad.co/article/N429b91a0-d026-4d65-8554-7db0a937c851

Lymphomatoid granulomatosis (LYG) is a rare, extranodal B-cell lymphoproliferative disorder. The disease commonly presents with nonspecific symptoms and imaging features, making the diagnosis and therapeutic response assessment difficult. While histopathology is the mainstay of diagnosis, different imaging modalities such as computed tomography (CT), magnetic resonance imaging, or F18-fluorodeoxyglucose positron emission tomography/computed tomography (F-18 FDG PET/CT) can help in identifying the different organs involved. We present a case of LYG, post chemotherapy in remission for the past 5 years, presenting with symptoms of disease recurrence.

]]>