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Multiple primary malignancies can occur as either synchronous or metachronous tumors, particularly in adults. Retroperitoneal liposarcoma is a rare malignancy arising from adipose tissue, while gastric adenocarcinoma is one of the most common neoplasms worldwide. The simultaneous occurrence of these 2 malignancies is extremely rare, with only 1 case reported worldwide. Here, we present the case of a 52-year-old man diagnosed with both retroperitoneal liposarcoma and gastric adenocarcinoma, marking the second reported case in the world.

Poland syndrome is indeed a rare congenital malformation that can present with various degrees of thoracic and homolateral upper limb anomalies. The classic features of Poland syndrome include agenesis or hypoplasia of the sternocostal head of the pectoralis major muscle, hypoplasia of the nipple, absence of subcutaneous fat, multiple rib abnormalities, and sometimes Sprengel deformity (elevation of the scapula). Additionally, ipsilateral symbrachydactyly (combination of “short fingers” with cutaneous syndactyly [fused fingers]) may also be observed. However, it’s important to note that not all of these findings are always present in every patient, and the combination of features can vary greatly. Surgical treatment for Poland syndrome primarily focuses on improving pulmonary functions resulting from severe thoracic deformities. However, it is frequently performed with the additional goal of enhancing cosmetic appearance. In recent times, the use of adipose-derived mesenchymal stem cells and fat transfer has shown promising results for correcting chest defects and breast augmentation. In our study, we present a series of 3 cases that were referred to our institution due to thoracic deformities associated with Poland syndrome.

Lemmel's syndrome is a rare cause of obstructive jaundice caused by a periampullary duodenal diverticulum compressing the intrapancreatic common bile duct with resultant bile duct dilatation, patients with Lemmel's syndrome usually present with abdominal pain or jaundice. Cross-sectional imaging is beneficial in making the diagnosis noninvasively, thus eliminating other pathologies of the peri-ampullary region. Although rare, we recognize the importance of considering this syndrome to be able to make a diagnosis and offer timely treatment. We present 2 cases of Lemmel's syndrome whose diagnosis is retained based on a CT scan and magnetic resonance cholangiopancreatography.

This review presents the case of a 9-year-old patient who reported headaches and unilateral nasal obstruction, without fever, and with a generally preserved condition. An endoscopic examination revealed a polypoid fleshy mass in the left nasal cavity, along with purulent secretions reaching the inferior turbinate. These findings prompted a facial CT scan to assess the nature of the lesion and the extent of infiltration into surrounding structures. A biopsy and histological analysis confirmed the diagnosis of B-cell lymphoma in the nasal sinuses, a rare occurrence in children. The unusual presentation of this case makes it worthy of sharing., (© 2024 The Authors. Published by Elsevier Inc. on behalf of University of Washington.)