Rare occurrence of metastasis from lung cancer to the anus: case report and review of the literature.
BACKGROUND
Anal metastases from lung cancer are infrequent, and there are only 10 published cases. Life expectancy is no longer than 1 year after diagnosis because of the typically advanced stage of disease. Treatment, which is typically inefficient, is administered with the intent to cure or avoid local complications.


METHODS
We report a case of a patient with non-small cell lung cancer presenting with perianal metastasis mimicking an abscess.


CONCLUSIONS
Because perianal masses may be misdiagnosed, patients with lung and other cancers should be evaluated for metastatic disease.
Department of Surgery, Hamad General Hospital, Al Rayyan Road, 3050, Doha, Qatar.
Mohannad
M
Al-Tarakji
National Center for Cancer Care and Research, Doha, Qatar.
Jonas
J
Feilchenfeldt
Department of Pathology, Hamad General Hospital, Doha, Qatar.
Abdulrazzaq
A
Haidar
PET/CT Center, Clinical Imaging Department, Hamad General Hospital, Doha, Qatar.
Lajos
L
Szabados
Department of Surgery, Hamad General Hospital, Al Rayyan Road, 3050, Doha, Qatar.
Sherif
S
Abdelaziem
Department of Surgery, Hamad General Hospital, Al Rayyan Road, 3050, Doha, Qatar.
Ali
A
Sayed
Department of Surgery, Patti Hospital, Messina, Italy.
Adriana
A
Toro
Department of Surgery, Hamad General Hospital, Al Rayyan Road, 3050, Doha, Qatar. idicarlo@unict.it.|Department of Surgical Sciences and Advanced Technologies, "G.F. Ingrassia" University of Catania, Catania, Italy. idicarlo@unict.it.
Isidoro
I
Di Carlo
D000038:Abscess / Q000473:pathology* / Q000601:surgery; D000368:Aged; D001005:Anus Neoplasms / Q000556:secondary* / Q000601:surgery; D002289:Carcinoma, Non-Small-Cell Lung / Q000473:pathology* / Q000601:surgery; D003937:Diagnosis, Differential; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology* / Q000601:surgery; D008297:Male
Anal cancer; Lung; Metastases