Lendoire de Undurraga M y col. Metástasis pulmonares aisladas de adenocarcinoma ductal de páncreas. Rev Argent Cir. 2023;115(4):371-374
373
Although in this subpopulaꢀon of paꢀents cannot exist without liver metastases, but it has been
a more aggressive therapeuꢀc approach would be proven feasible. In a study of 130 autopsy cases,
jusꢀfied, it is unclear whether resecꢀon of these Kamisawa et al. found 16 paꢀents with pulmonary
pulmonary metastases would improve survival.
metastases without liver metastases and postulated
We report the case of an 82-year-old female that this unusual paꢁern of spread could be due
paꢀent who was a former smoker (2.5 pack-year), to portosystemic shunꢀng induced by splenic vein
with a diagnosis of pancreaꢀc ductal adenocarcinoma obstrucꢀon, retrograde lymphaꢀc infiltraꢀon from
who underwent cephalic pancreaꢀcoduodenectomy. metastaꢀc tracheobronchial lymph nodes, or
The pathology report was suggesꢀve of stage 1 T1N0. aggressive characterisꢀcs of the tumors indicated by
Aꢂer surgery, the paꢀent completed adjuvant systemic peculiar histologic features such as pleomorphic or
4
therapy with gemcitabine and radiotherapy.
mucoepidermoid carcinoma . Resecꢀng pulmonary
Disease-free interval aꢂer pancreaꢀc surgery metastases from pancreaꢀc adenocarcinoma may seem
was 84 months. A subsequent scan revealed an isolated unusual. Nevertheless, mulꢀple studies have proven
pulmonary lesion in the right lobe (Fig. 1); the CA 19-9 that paꢀents with isolated pulmonary metastases have
was normal, as when the diagnosis was made. The lung beꢁer survival. Downs-Canner et al. demonstrated that
funcꢀon was normal.
A positron emission tomography/computed stereotacꢀc radiosurgery of lung metastases, survival
tomography (PET-CT) scan revealed
cm was significantly prolonged (67.5 months) compared
hypermetabolic nodule in the apical segment of the to those receiving chemotherapy (33.8 months) or
among paꢀents who underwent surgical resecꢀon/
a
2
5
right lower lobe, indicaꢀng a primary neoplasm.
Due to the paꢀent’s history as a former smoker
observaꢀon (29.9 months) .
With these findings, the key is to select those
and the fact that her sister underwent surgery for a paꢀents with favorable tumor biology. In 96 paꢀents
primary lung tumor, as well as the results of the PET- with recurrence restricted to the lungs, Groot et al.
CT scan, it was determined that the lesion was also a idenꢀfied that more than 5 pulmonary lesions and CA
primary lung tumor and therefore surgery was deemed 19-9 >100 U/mL at ꢀme of recurrence were predicꢀve
necessary.
A
of adverse outcome. In contrast, a recurrence-free
lung lobectomy was performed. The interval of > 16 months was associated with improved
6
pathology report was adenocarcinoma and the outcome .
immunohistochemical tests were consistent with
pancreaꢀc cancer metastasis.
It is unclear why paꢀents with isolated
pulmonary recurrence of pancreaꢀc ductal
Forty-eight months later, a metastaꢀc lesion adenocarcinoma have beꢁer survival rates than those
in the leꢂ superior lobe was detected. The paꢀent with recurrence in other locaꢀons. It is also unclear
was provided with an explanaꢀon of the available whether these paꢀents would benefit from pulmonary
therapeuꢀc opꢀons and ulꢀmately decided to pursue resecꢀon. Future studies should focus on idenꢀfying
palliaꢀve treatment exclusively. Specific disease-free which subpopulaꢀon of paꢀents with isolated lung
survival was 152 months.
metastases would benefit from a more aggressive
We may assume that pulmonary metastases approach.
■
FIGURA 1
Computed tomography scan showing
a 2.2 cm pulmonary nodule in the right
lower lobe (black arrows).
Referencias bibliográꢁcas /References
1
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Saad AM, Turk T, Al-Husseini MJ, Abdel-Rahman O. Trends in pan-
creaꢀc adenocarcinoma incidence and mortality in the United
States in the last four decades; A SEER-based study. BMC Cancer.
term outcomes among paꢀents with resected pancreaꢀc can-
cer: The CONKO-001 randomized trial. JAMA - J Am Med Assoc.
2013;310(14):1473-81.
2
018;18(1):1-11.
3. Lovecek M, Skalicky P, Chudacek J, Szkorupa M, Svebisova H LR,
et al. Different clinical presentaꢀons of metachronous pulmonary
metastases aꢂer resecꢀon of pancreaꢀc ductal adenocarcinoma:
2
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Oeꢁle H, Neuhaus P, Hochhaus A, Hartmann JT, Gellert K, Ridwels-
ki K, et al. Adjuvant chemotherapy with gemcitabine and long-