2023年11月9日 · A mass in the lung can have a number of possible causes, not all of them cancer. Benign causes can include infection, aneurysm, or a congenital malformation, all with different treatment options and outlooks.

2022年10月14日 · The left upper lobe (LUL) is one of two lobes in the left lung. It is separated from the left lower lobe by the left oblique fissure and subdivided into four bronchopulmonary segments, two of which represent the lingula. The left upper lobe lies in the upper aspect of the left hemithorax and contains four bronchopulmonary segments:

Primary lung cancer usually presents as a solitary nodule or mass. Adenocarcinoma often presents as a peripheral lung nodule or mass. More centrally situated lung malignancies may cause lobar or lung opacification with, or without, volume loss. A central, or hilar, location for lung malignancy is common with Small Cell Carcinoma.

A transbronchial lung biopsy of the LUL mass revealed adenocarcinoma with EGFR L858R and S768I mutations detected by droplet digital PCR. Conversely, a biopsy of the RUL mass identified adenocarcinoma with an EGFR E19del mutation.

This case illustrates some of the typical findings of LUL collapse on CXR. The patient underwent CT which demonstrated a left hilar mass as the cause for the collapse. Bronchoscopic biopsy confirmed small cell lung cancer.

Primary lung cancer usually presents as a solitary nodule or mass. Adenocarcinoma often presents as a peripheral lung nodule or mass. More centrally situated lung malignancies may cause lobar or lung opacification with, or without, volume loss. A central, or hilar, location for lung malignancy is common with Small Cell Carcinoma.

A chest radiograph revealed a large left upper lobe (LUL) mass. A computed tomography (CT) scan of the chest was performed, which demonstrated a 7.5cm LUL mass with a necrotic-appearing center and mediastinal lymphadenopathy. A subsequent positron emission tomography (PET)-CT scan showed uptake around the rim of the mass, sparing the center.

Features of LUL collapse •Different from RUL atelectasis because there is no minor fissure on the left •Hazy density extending from the left hilum •Elevation of the left hilum and diaphragm •Outward angulation of the LLL artery and left main bronchus •On lateral film, an elongated opacity extending from apex and almost reaching diaphragm

We present a case of a patient with a large left upper lobe mass on radiological imaging suspicious for a primary pulmonary malignancy who required multiple biopsy attempts before a diagnosis of pulmonary Hodgkin lymphoma was made.

The initial baseline 18F-fluorodeoxyglucose positron emission tomography (FDG-PET) and computed tomography (CT) scans (Fig. 1, left panels) displayed an FDG-avid LUL mass, a positive left pretracheal node