Mimics of acute appendicitis—Alternative diagnoses at sonography, CT, and MRI; specific imaging findings that can help in differential diagnosis

2018 ◽  
Vol 48 ◽  
pp. 90-105 ◽  
Author(s):  
Huseyin Toprak ◽  
Temel Fatih Yilmaz ◽  
Seyma Yildiz ◽  
Ihsan Turkmen ◽  
Serpil Kurtcan
Keyword(s):  
Differential Diagnosis ◽  
Acute Appendicitis ◽  
Imaging Findings ◽  
Ct And Mri

scholarly journals Adult cerebellar medulloblastoma: CT and MRI findings in eight cases

2003 ◽  
Vol 61 (2A) ◽  
pp. 199-203 ◽  
Author(s):  
Arnolfo de Carvalho Neto ◽  
Emerson L. Gasparetto ◽  
Sérgio E. Ono ◽  
Guilherme A. Bertoldi ◽  
André F. Gomes
Keyword(s):  
Differential Diagnosis ◽  
Pediatric Brain Tumors ◽  
Ct Scans ◽  
Age Group ◽  
Imaging Findings ◽  
Mri Findings ◽  
Cerebellar Medulloblastoma ◽  
The Mean ◽  
Pediatric Brain ◽  
Ct And Mri

Medulloblastoma is a brain tumor of neuroepithelial origin, which represents 15 to 30% of all pediatric brain tumors, and less than 1% of CNS adult neoplasms. We report the imaging findings of 8 adult patients with medulloblastoma. The mean age was 35 years, ranging from 20 to 65 years, and the male:female rate was 3:5. The tumors were predominantly lateral (63%), hyperdense on CT scans (83%), and on the MRI, hypointense on T1 (100%) and hyperintense on T2 (80%) weighted images. It was seen intratumoral necrosis and cysts in six cases and calcifications in three. Hydrocephalus was observed in 5 cases and brain stem invasion in four. The imaging findings of medulloblastomas in adults are different of those in child, and also nonspecific. Although these tumors are uncommon in adults, they must be considered in the differential diagnosis of cerebellar masses in the posterior fossa of this age group.

MR Imaging Findings of Pineal Germinoma: Focus on Differential Diagnosis from Other Germ Cell Tumors

1998 ◽  
Vol 39 (4) ◽  
pp. 639
Author(s):  
Hyun Jin Kim ◽  
Ho Kyu Lee ◽  
Jae Kyun Kim ◽  
Ji Hoon Shin ◽  
Choong Gon Choi ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
Mr Imaging ◽  
Germ Cell ◽  
Germ Cell Tumors ◽  
Imaging Findings ◽  
Pineal Germinoma

scholarly journals Primary breast tuberculosis: imaging findings of a rare disease

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Ali H. Baykan ◽  
Hakan S. Sayiner ◽  
Ibrahim Inan ◽  
Elcin Aydin ◽  
Sukru M. Erturk
Keyword(s):  
Differential Diagnosis ◽  
Rare Disease ◽  
Extrapulmonary Tuberculosis ◽  
Reproductive Age ◽  
Malignant Diseases ◽  
Imaging Findings ◽  
Granulomatous Mastitis ◽  
Rare Form ◽  
Breast Tuberculosis

AbstractBreast tuberculosis is a rare form of extrapulmonary tuberculosis which tends to affect females of reproductive age, and is much rarer in males, postmenopausal women, and pre-pubescent girls. It is difficult to diagnose because it can mimic benign conditions such as a fibroadenoma, as well as malignant diseases like a carcinoma. It is also particularly difficult to distinguish breast tuberculosis from granulomatous mastitis, so other possible diagnoses should be ruled out first. The diagnosis of breast tuberculosis has three essential pillars: clinical examination, radiological evaluations, and histopathological sampling. Radiological evaluations are not only critical in diagnosis but are also important in the planning of the treatment and during the follow-up. This paper aims to review the imaging findings and the differential diagnosis of breast tuberculosis.

The significance of urinary beta-2 microglobulin level for differential diagnosis of familial Mediterranean fever and acute appendicitis

2016 ◽  
Vol 35 (7) ◽  
pp. 1669-1672 ◽  
Author(s):  
Yunus Ugan ◽  
Hakan Korkmaz ◽  
Atalay Dogru ◽  
Yavuz Savas Koca ◽  
Ayse Balkarlı ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
Familial Mediterranean Fever ◽  
Acute Appendicitis ◽  
Mediterranean Fever ◽  
Beta 2 ◽  
Beta 2 Microglobulin

Toxoplasma Appendicitis: A Once-in-a-Lifetime Diagnosis!

2017 ◽  
Vol 26 (1) ◽  
pp. 89-92 ◽  
Author(s):  
Anisha M. Fernandes ◽  
Maheshkumar M. Lakhe ◽  
Sanjay A. Pai
Keyword(s):  
Differential Diagnosis ◽  
Acute Appendicitis ◽  
Muscularis Propria ◽  
Immunocompromised Patients ◽  
Lymphoid Follicles ◽  
Negative Results ◽  
Immunosuppressed Patients ◽  
Life Threatening

Toxoplasmosis is generally asymptomatic in immunocompetent individuals, but it can be life-threatening in immunocompromised patients. We present a case of a 62-year-old man with clinical features of acute appendicitis. Histology showed a transmural infiltrate of eosinophils. In addition, there were reactive lymphoid follicles with histiocytes in the submucosa and tachyzoites in the muscularis propria. Immunohistochemistry confirmed the diagnosis of toxoplasma appendicitis. Serological evaluation yielded negative results. Retrospective review of the history revealed that the patient was on long-term immunosuppressive therapy with methotrexate. The patient was treated with sulfamethoxazole-trimethoprim and is asymptomatic at 7-month follow-up. Toxoplasma appendicitis must be considered in the differential diagnosis of appendicitis in immunosuppressed patients.

scholarly journals Ectopic decidua of the appendix: a case report

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Manabu Kaneko ◽  
Hiroaki Nozawa ◽  
Hirofumi Rokutan ◽  
Koji Murono ◽  
Tetsuo Ushiku ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
Acute Appendicitis ◽  
Rare Entity ◽  
Lower Quadrant ◽  
Case Presentation ◽  
Decidual Tissue ◽  
Abdominal Symptoms ◽  
History Of ◽  
Myxoid Degeneration ◽  
Right Lower Quadrant

Abstract Background Ectopic decidua is the presence of decidual tissue outside the uterus. Ectopic decidua of the appendix is a rare entity that can present with abdominal symptoms mimicking appendicitis. We report a case of a 39-year-old female patient at 27 weeks gestational age with a 2-day history of right lower quadrant abdominal pain. Case presentation The patient was referred to our hospital with suspicion of either acute appendicitis or threatened rupture of the uterus, the latter of which was considered unlikely following close examination. Therefore, she underwent emergency appendectomy via laparotomy. Microscopic examination revealed decidual tissue with myxoid degeneration in the subserosal layer of the tip side of the appendix, without endometriosis, which was compatible with ectopic decidua (deciduosis). Conclusions Because it is extremely difficult to distinguish ectopic decidua of the appendix from acute appendicitis, even with various imaging modalities, we should be aware that ectopic decidua of the appendix is a differential diagnosis for acute appendicitis in pregnant women.

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