Items tagged “rare”
14 results found
Case
Acinic cell carcinoma of the lacrimal gland
Published
22 Apr 2010
86% complete
CT
Article
Primary prostatic malignant melanoma
Primary melanoma of the prostate is rare, and usually cannot be diagnosed on imaging alone. In many cases, it is believed that in fact, the tumor represents prostatic involvement by melanoma of the urethra.
Epidemiology
Primary malignant melanoma of the prostate represents both a tiny fraction...
Article
Primary urethral malignant melanoma
Melanoma of the urethra is a very rare tumor of the male urethra and often presents as an invasive prostatic mass. As such it is usually referred to as primary prostatic malignant melanoma.
Article
Prostate sarcoma
Prostate sarcomas are an uncommon and heterogeneous group of tumors arising from mesenchymal cells in and around the prostate (as opposed to the more common prostate adenocarcinoma which derives from the glandular tissue).
Pathology
In children, the most common tumor type is a prostatic rhabd...
Case
Anteromedial meniscofemoral ligament (of the medial meniscus)
Published
06 Nov 2015
89% complete
MRI
Article
Ossifying renal tumor of infancy
Ossifying renal tumor of infancy (ORTI) is a rare renal tumor.
Epidemiology
extremely rare, <<1% of pediatric renal neoplasms (17 cases reported)
6 days - 3 months
male predominant
Pathology
Histology reveals spindle cells and osteoblastic cells in a calcified osteoid matrix. It is thought...
Case
Birt-Hogg-Dubé syndrome
Published
05 Apr 2016
83% complete
CT
Case
Uterine torsion
Published
12 Apr 2016
86% complete
Photo
CT
Case
Insulinoma
Published
06 Dec 2016
70% complete
MRI
CT
Article
Secretan disease
Secretan disease refers to rare situation of post-traumatic firm edema of the dorsum of the hand. The diagnosis can be considered in the setting of remote trauma and a fibrotic plaque-like lesion involving both the subcutaneous and tendinous spaces.
Radiographic features
MRI
Signal characteri...
Case
Hepatic segmental torsion
Published
30 Jun 2017
92% complete
CT
Annotated image
Case
Tracheobronchial papillomatosis with lung involvement
Published
19 Feb 2018
87% complete
CT
Photo
X-ray
Article
12q14 microdeletion syndrome
12q14 microdeletion syndrome or osteopoikilosis-short stature-intellectual disability syndrome is caused by heterozygous deletion at the region of 12q14. The microdeletion affects the LEMD3 gene which has already been implicated in osteopoikilosis.
Epidemiology
Prevalence is <1 in 1 million li...
Article
Gardner-Silengo-Wachtel syndrome
Gardner-Silengo-Wachtel syndrome, also known as genito-palato-cardiac syndrome, is a rare male (46XY) gonadal dysgenesis condition that is assumed to be either an X-linked recessive or an autosomal recessive disorder 1.
Epidemiology
The estimated incidence is at <1 in 1,000,000 live births.
P...