PET-CT: Rare Findings and Diseases


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In cases of metastasis it is usually to the lung.

Detection of unexpected emergency diseases using FDG-PET/CT in oncology patients.

In such cases, surgical intervention by a surgeon who is experienced in the removal of such fragile tumors is imperative. A 3-year-old female patient presented with the diagnosis of a right renal mass. The scan demonstrated an area of increased tracer uptake in the right kidney Fig.

Appropriate diagnosis of these tumors is important since surgical removal of the tumor is associated with a high cure rate. Unresected not surgically removed tumors particularly of the mucinous cystadenoma type can lead to invasive pancreatic cancer, a potentially fatal disorder. An important consideration is the separation of these tumors from a condition called pancreatic pseudocyst since cystic tumors are often misdiagnosed as pancreatic pseudocyst and inappropriately treated. A year-old female patient presented with the diagnosis of pancreatic mass at CT.

The scan demonstrated only mild tracer uptake in the pancreatic mass Fig.

PET-CT: Rare Findings and Diseases

The patient was referred for a biopsy. Histopathology showed the presence of microcystic tumor of the pancreas. A year-old female patient presented with seizures. The scan demonstrated an area of decreased tracer uptake in the left temporal lobe, consistent with the epileptic focus Fig. Clinical Case 60 A 9-year-old male patient presented with seizures. The scan demonstrated an area of decreased tracer uptake in the right frontal lobe, consistent with the epileptic focus Fig. The majority of spindle cell lesions of the prostate are initially diagnosed on needle biopsy or transurethral resection TUR of the prostate.

Owing to the rarity of these lesions, only a limited number of clinical or pathological studies have been performed that address the morphological spectrum and biological behavior of these entities. A year-old male patient was referred for prostatic biopsy after equivocal ultrasound. The result was spindle cell carcinoma of the prostate. The scan showed increased tracer uptake in the prostate and in a right iliac adenopathy consistent with cancer localizations. Diagnosis, course, treatment. Eur J Gen Med 1 2 :3—5 Sellheyer K Basal cell carcinoma: cell of origin, cancer stem cell hypothesis and stem cell markers.

Clinical and radiologic characteristics of 59 cases. Most cases of HCC are secondary to either a viral hepatitis infection or cirrhosis.

Clinical value of whole-body PET/CT in patients with active rheumatic diseases

Treatment options for HCC and prognosis are dependent on many factors, but especially on tumor size and staging. Tumor grade is also important.


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High-grade tumors will have a poor prognosis, while low-grade tumors may go unnoticed for many years, as is the case in many other organs, such as the breast, where a ductal carcinoma in situ or a lobular carcinoma in situ may be present without any clinical signs and without correlate on routine imaging tests.

She was treated with thermoablation. After therapy the CT scan was equivocal for disease persistence. The scan demonstrated increased uptake in the suspect lesion Fig. This was consistent with incomplete response to therapy. The scan demonstrated two focal areas of increased tracer uptake in the sternum and in the fourth left rib Fig.

No other areas of pathological increased uptake were detected. While most cases do not cause symptoms, some patients may develop pain, fractures, or even malignant transformation into sarcoma bone tumor , although this is rare. It is more common with increasing age, typically diagnosed in people in their 50s. The cause of sarcoidosis is unknown. Normally the onset is gradual. Sarcoidosis may be asymptomatic or chronic. It commonly improves or clears up spontaneously. More than two-thirds of people with lung sarcoidosis have no symptoms after 9 years.

Lung scarring or infection may lead to respiratory failure and death. The scan demonstrated an area of increased tracer uptake in the right pulmonary hilum Fig. This disease is characterized by a lack of early warning signs, diverse clinical manifestations, and resistance to radiation and chemotherapy. Increasingly, renal cell cancers are diagnosed at an earlier stage, and nephron-sparing surgery and thermal ablation are gaining acceptance as a treatment of choice for smaller tumors.

cianant.tk Radical nephrectomy is the standard for larger and central tumors. The scan demonstrated an area of increased tracer uptake in the left cortical kidney Fig. When possible, they are primarily treated by surgical resection with curative intent, although chemotherapy is increasingly being used both pre- neoadjuvant chemotherapy and postoperatively.

The scan demonstrated an area of increased tracer uptake in the left pulmonary lesion Fig. Intracerebral hemorrhage can be caused by brain trauma, or it can occur spontaneously in hemorrhagic stroke. Nontraumatic intracerebral hemorrhage is a spontaneous bleeding into the brain tissue. A cerebral hemorrhage is an intra-axial hemorrhage, that occurs within the brain tissue rather than outside of it. There are two main kinds of intra-axial hemorrhages: intraparenchymal and intraventricular hemorrhages.

As with other types of hemorrhages within the skull, intraparenchymal bleeds are a serious medical emergency because they can increase intracranial pressure, which if left untreated can lead to coma and death. The scan demonstrated an area of increased tracer uptake along the resected area Fig. Although it primarily involves the brain, the meninges are frequently involved meningoencephalitis. Although bacterial, fungal, and autoimmune disorders can produce encephalitis, most cases are viral in origin.

The incidence of encephalitis is 1 case per , population, with herpes simplex virus HSV being the most common cause. A year-old male patient suddenly developed neurological symptoms and therefore underwent brain MRI. The parathyroid gland s becomes overactive and secrete excess amounts of parathyroid hormone. As a result, the blood calcium rises to a level that is higher than normal called hypercalcemia.

An elevated calcium level can cause many short- and long-term complications. Surgical removal of the hyperfunctioning gland is the therapy of choice. Both patients had negative neck ultrasound and MIBI scintigraphy. It can occur at any age, but is more common in the elderly. Soft tissue sarcomas arise predominantly in the abdomen and extremities.

Usually the clinical presentation of patients with soft-tissue sarcomas depends on the primary tumor site, while most patients with bone sarcoma present with localized pain. The diagnosis of sarcoma arises after a CT scan for soft tissue sarcomas, a MR scan for bone sarcomas, and a targeted biopsy, while the disease staging is performed with satisfactory accuracy mainly with CT, especially for the evaluation of lung metastasis.

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The prognosis of these neoplasms is strongly related to several factors, among which it is important to remember the extent of the disease at diagnosis, the grade of the tumor, the age of the patient, the presence of microscopically positive margins after resection, the presence of metastasis at disease diagnosis, and a long duration of symptoms before the diagnosis. However, it is possible to increase the patient survival by combining surgery with chemo- and radiation therapy adjuvant or neoadjuvant in order to facilitate surgical excision of large tumors or to consolidate local treatment after surgical resection.

An year-old male patient was diagnosed with right lower limb soft tissue sarcoma. The scan showed 11C-methionine uptake in the mass. Unresected not surgically removed tumors, particularly of the mucinous cystadenoma type, can lead to invasive pancreatic cancer, a potentially fatal disorder. The scan result was negative.

A year-old female patient had been previously radically treated for neuroendocrine tumor of the pancreas. Subsequently, the diagnosis of chronic pancreatitis was made. Pure neuroendocrine tumors constitute a small percentage of prostatic malignancies with a poor prognosis.

Introduction

Because of its rarity, there is a relative scarcity of information on the clinicopathological behavior and optimum treatment strategies for this tumor. The scan showed focal increased tracer uptake in multiple bones consistent with secondary lesions. Clin Genitourin Cancer 5 1 —84 Pezzilli R Etiology of chronic pancreatitis: has it changed in the last decade? Causes can include pancreatitis, cirrhosis, diverticulitis, and cholangiocarcinoma. It is also a known complication of splenectomy.

Treatments include anticoagulants, shunts, bypass surgery, and transplants. It also can be medically managed with blood thinners. The scan was negative for neuroendocrine tumor relapse, but areas of increased uptake in the portal tree were detected. This was consistent with thrombosis. This was consistent with acute pulmonary alveolitis. Corticosteroids or immunosuppressive therapies may also have roles.

PET-CT: Rare Findings and Diseases PET-CT: Rare Findings and Diseases
PET-CT: Rare Findings and Diseases PET-CT: Rare Findings and Diseases
PET-CT: Rare Findings and Diseases PET-CT: Rare Findings and Diseases
PET-CT: Rare Findings and Diseases PET-CT: Rare Findings and Diseases
PET-CT: Rare Findings and Diseases PET-CT: Rare Findings and Diseases

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