Skip lesions in perianal mucinous adenocarcinoma

Nirali Shah; Michael Gates; Imran Saeed

doi:10.4103/wjcs.wjcs_1_20

Skip lesions in perianal mucinous adenocarcinoma

World Journal of Colorectal Surgery ◽

10.4103/wjcs.wjcs_1_20 ◽

2020 ◽

Vol 9 (2) ◽

pp. 32

Author(s):

Nirali Shah ◽

Michael Gates ◽

Imran Saeed

Keyword(s):

Mucinous Adenocarcinoma ◽

Skip Lesions

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A Case Report of Skip Lesions in Perianal Mucinous Adenocarcinoma

Journal of Surgical Case Reports and Images ◽

10.31579/2690-1897/064 ◽

2021 ◽

Vol 4 (3) ◽

pp. 01-04

Author(s):

Nirali Shah ◽

Michael Gates ◽

Imran Saeed

Keyword(s):

Case Report ◽

Mucinous Adenocarcinoma ◽

Nccn Guidelines ◽

Chronic Fistula ◽

First Case ◽

Inguinal Node Dissection ◽

Tumor Boards ◽

History Of ◽

Skip Lesions ◽

Diagnostic Modalities

Perianal Mucinous Adenocarcinoma (PMA) is a rare gastrointestinal malignancy, known to occur in patients with a long-standing history of recurrent perirectal abscesses or a chronic fistula. In this case report, we present a unique presentation of perianal mucinous adenocarcinoma, which began as a rectal abscess and progressed to a case of perianal mucinous adenocarcinoma, with a skip lesion present all the way up in the mid-rectal region. To the best of our knowledge, this is the first case in which PMA presented with skip lesions as opposed to a continuous lesion, and presented without a long standing history of fistulas and recurrent abscesses, but instead just a 4-day history of perianal burning, itching and tingling. The use of CT imaging, MRI’s and PET scans as diagnostic modalities for PMA are further elucidated in the report, along with a discussion of NCCN guidelines on using radiation therapy followed by an APR with inguinal node dissection for the management and treatment of PMA. Sharing this unique and atypical presentation of PMA with multimodality speciality groups and tumor boards helps in the development of various diagnostic and therapeutic approaches for PMA, as well as enhances our understanding of this rare malignant entity.

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