Comparison of therapeutic effectiveness of percutaneous drainage with antibiotics versus antibiotics alone in the treatment of periappendiceal abscess: is appendectomy always necessary after perforation of appendix?
Zerem E, Salkic N, Imamovic G, Terzić I.
Surg Endosc. 2007 Mar;21(3):461-6. doi: 10.1007/s00464-006-9005-y. Epub 2006 Nov 14.
PMID:17103286
[Clinical and pathological characteristics in acute complicated appendicitis].
Zhao Y, Yin J.
Zhonghua Wai Ke Za Zhi. 2014 May;52(5):338-41.
PMID:25034739
Diagnostic prediction of complicated appendicitis by combined clinical and radiological appendicitis severity index (APSI).
Avanesov M, Wiese NJ, Karul M, Guerreiro H, Keller S, Busch P, Jacobsen F, Adam G, Yamamura J.
Eur Radiol. 2018 Sep;28(9):3601-3610. doi: 10.1007/s00330-018-5339-9. Epub 2018 Mar 14.
PMID:29541911
Right hydronephrosis as a sign of complicated appendicitis.