Adenocarcinoma of Unknown Primary Site (Acups) Presenting as a Psoas Abscess

Ic, Stewart; Kj, Blaikie; Hm, MacLeod

doi:10.1177/003693308903400310

Cited by 3 publications

(2 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Published studies on the use of CT or MRI suggest that an imaging examination cannot accurately determine the psoas muscle pathology (28), and the diagnosis of these lesions is not usually straightforward, even with radiological imaging. Muscle metastasis can, for example, mimic a benign lesion such as an abscess, as previously reported (29). As a result, the value of histopathological evaluation is highlighted in the differential diagnosis.…”

Section: Discussionmentioning

confidence: 71%

Non-small cell lung cancer with concomitant intramuscular myxoma of the right psoas mimicking intramuscular metastasis: A case report and literature review

et al. 2015

View full text Add to dashboard Cite

Abstract. Intramuscular myxoma (IMM) as a rare soft-tissue tumor arising from the muscles is completely benign. When IMM accompanies malignance, it may be misdiagnosed as muscle metastasis, and for this extremely rare concurrence, the subsequent treatment would vary accordingly. The current study presents, to the best of our knowledge, the first case of non-small cell lung cancer (NSCLC) concomitant with IMM mimicking skeletal muscle metastasis. A 64-year-old female was hospitalized with a history of chest discomfort and right lumbar pain that had persisted for four months. The computed tomography scan showed a lesion in the left upper lobe of the lung and the right psoas, respectively. Serum biomarkers for NSCLC were abnormal. A presumptive clinical diagnosis was compatible with left NSCLC and right psoas muscle metastasis (cT2aN3M1b, stage Ⅳ). Stage Ⅳ lung cancer would receive palliative treatment. However, the final diagnosis of synchronous left lung squamous cell carcinoma (cT2aN3M0, stage ⅢB) and IMM in the right psoas was confirmed by biopsy. The patient therefore underwent definitive chemoradiotherapy for lung carcinoma, and conservative treatment, including analgesics, for IMM. The diagnosis process for a malignant neoplasm concomitant with IMM is not straightforward due to a lack of clinical experience, and it significantly affects the tumor staging and subsequent treatment strategy. The present case suggests that IMM should be included in the differential diagnosis when an abnormal intramuscular lesion concomitant with malignancy is identified. The value of histopathological diagnosis prior to definitive treatment also requires highlighting.

show abstract

Section: Discussionmentioning

confidence: 71%

Non-small cell lung cancer with concomitant intramuscular myxoma of the right psoas mimicking intramuscular metastasis: A case report and literature review

et al. 2015

View full text Add to dashboard Cite

show abstract

“…The presentation of a psoas abscess is commonly seen in conjunction with infection, especially tuberculosis. Metastasis to the psoas muscle and tumoral involvement of the psoas muscles is rare [4]. Avery reported a patient with a psoas lesion 4 years after a sigmoid colectomy for adenocarcinoma.…”

Section: Discussionmentioning

confidence: 99%

Psoas as an Unusual and Overlooked Place for a Metastatic Tumor

et al. 2016

View full text Add to dashboard Cite

We report a case of a 60-year-old hemodialysis patient who clinically mimicked psoas abscess, which was subsequently proven to be from metastatic disease seconddary to uroepithelial tumor. The patient presented with 3 weeks history of fever, weight loss and back pain. Computer tomography (CT) scan of abdomen and pelvis revealed psoas muscle infiltration not amenable to drainage by interventional radiology. Careful history to provide additional clues to the diagnosis is of paramount importance in this condition.

show abstract