Small Intestine: Imaging Approach and Differential Diagnosis

Malignant melanoma of the gastrointestinal tract is an uncommon neoplasm that could be primary or metastatic. Small intestine represents the most common site for the metastatic melanoma; however, it could be found anywhere in the gastrointestinal tract. Intussusception is a rare cause of intestinal obstruction in adults compared to children. In 90% of the cases, the underlying cause can be found, and in 65% of the cases, intussusception is caused by the neoplastic process. The majority of the neoplasms are benign, and about 15% are malignant. Metastatic melanoma is one of the most common metastatic malignancies to the gastrointestinal tract; however, the premortem diagnosis is rarely made. Here, we report an uncommon clinical presentation of metastatic melanoma causing intussusception in an 80-year-old man. This diagnosis should be considered in a differential diagnosis in any patient who presents with gastrointestinal symptoms and a history of melanoma.

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Functional disorders of the gastrointestinal tract in young children

Kazan medical journal ◽

10.17816/kazmj70908 ◽

1986 ◽

Vol 67 (6) ◽

pp. 441-444

Author(s):

R. F. Akberov

Keyword(s):

Differential Diagnosis ◽

Small Intestine ◽

Gastrointestinal Tract ◽

Young Children ◽

Clinical Medicine ◽

Functional Disorders

Functional disorders of the gastrointestinal tract in young children are the most difficult and insufficiently studied issues of clinical medicine. So far, such relevant issues as the mechanism of regurgitation and vomiting, the origin of pylorostenosis and dyskinetic disorders of the small intestine have not been elucidated. Unified methods of diagnosis and differential diagnosis of both functional and organic changes of the gastrointestinal tract, especially in children in the first days of life, have not been developed.

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Radiographic Features of Cerebellar Disease: Imaging Approach to Differential Diagnosis

10.1007/978-3-319-97911-3_27-2 ◽

2021 ◽

pp. 1-18

Author(s):

Otto Rapalino

Keyword(s):

Differential Diagnosis ◽

Cerebellar Disease ◽

Radiographic Features ◽

Imaging Approach

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Sarcomatoid Carcinoma of the Colon: A Case Report with Literature Review

Tumori Journal ◽

10.1177/030089160108700615 ◽

2001 ◽

Vol 87 (6) ◽

pp. 431-435 ◽

Cited By ~ 26

Author(s):

Dolores Di Vizio ◽

Luigi Insabato ◽

Giovanni Conzo ◽

Brian T Zafonte ◽

Gerardo Ferrara ◽

...

Keyword(s):

Differential Diagnosis ◽

Small Intestine ◽

Case Report ◽

Sarcomatoid Carcinoma ◽

Clinical History ◽

Tumor Type ◽

Carcinoma Of The Colon ◽

Therapeutic Implications ◽

Immunohistochemical Analyses ◽

Biphasic Tumor

Sarcomatoid carcinoma (SC) is a well defined tumor type that may occur in all organs and anatomic sites but most commonly in the head1, neck1, respiratory tract2-4, breast5, and genitourinary tract6-11. It is a biphasic tumor showing both epithelial- and mesenchymal-like differentiation; however, its carcinomatous nature is widely recognized12. SC is rare in the gastrointestinal tract. In the esophagus it accounts for less than 5% of all malignancies12-16 and approximately only 35 cases have been described in the stomach12,17-18. Very few cases have been observed in the small intestine19-20, anorectal junction21, liver22, and pancreas23-24. To our knowledge only eight cases of SC have been reported in the colon25-32. We report a case of primary colonic SC. Both morphological and immunohistochemical analyses are provided along with an evaluation of the unusual clinical history, therapeutic implications, and controversial differential diagnosis.

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