We're unable to sign you in at this time. Please try again in a few minutes.
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......
Special Feature |

Pathological Case of the Month FREE

Ricardo Drut, MD; Mónica Drut, MD
[+] Author Affiliations

From the Department of Pathology, Children's Hospital, La Plata, Argentina.

Section Editor: Gilbert-barness Enid, MD

Arch Pediatr Adolesc Med. 2000;154(1):87. doi:.
Text Size: A A A
Published online

A 45-DAY-OLD, full-term, male infant weighing 3420 g at birth was admitted to the hospital with a 2-day history of vomiting and a clinical diagnosis of pyloric stenosis. He had been asymptomatic until the presenting complaint. Findings from radiological examination of the thorax revealed the presence of a large lucent cyst in the left upper lobe with mild deviation of the mediastinal structures (Figure 1). Routine laboratory analysis findings were normal. Pyloroplasty was performed on the third hospital day. The patient was discharged from the hospital 4 days after surgery and readmitted 1 week after discharge. A computed tomographic scan of the thorax showed a large cystic lesion with smooth borders in the upper lobe of the left lung. A lobectomy was performed.

The 8 × 6 × 4-cm resected lobe contained a 5-cm-diameter cyst involving the upper two thirds of the lobe. The inner surface of the cyst appeared to be crossed by small septa. The cyst contained small amounts of clear fluid. Microscopic sections are seen in Figure 2 and Figure 3.




Also Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
Please click the checkbox indicating that you have read the full article in order to submit your answers.
Your answers have been saved for later.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.


Some tools below are only available to our subscribers or users with an online account.

6 Citations

Related Content

Customize your page view by dragging & repositioning the boxes below.

Articles Related By Topic
Related Collections

The Rational Clinical Examination: Evidence-Based Clinical Diagnosis
Original Article: Does This Patient Have a Hemorrhagic Stroke?

The Rational Clinical Examination: Evidence-Based Clinical Diagnosis
Quick Reference