Diagnostic tips for parotid lymphoma.

OBJECTIVES: Parotid lymphoma is a rare disease and proves challenging to differentiate from other masses. In this study, we aimed to analyze the clinical characteristics of parotid lymphoma to identify diagnostic factors to facilitate a diagnosis of parotid lymphoma. MATERIALS AND METHODS: We retrospectively enrolled 7 patients with parotid lymphoma, which was diagnosed at our hospital from 2012 to 2023. RESULTS: All participants had a well-defined, homogeneous solid mass; moreover, 5 patients had bilateral multiple lymphadenopathy that was detected on neck computed tomography (CT). Three patients had lymphocyte-related findings in fine-needle aspiration cytology (FNAC). CONCLUSION: Despite the challenges in diagnosing a parotid lymphoma, CT and FNAC findings can facilitate a differential diagnosis of parotid lymphoma.

Clinical characteristics analysis of sinonasal diffuse large B-cell lymphoma and extranodal NK/T-cell lymphoma.

KEYPOINTS: Extranodal NK/T-cell lymphoma (ENKL) was the most common sinonasal lymphoma at our hospital. ENKL occurs at a younger age, and is more prevalent in the nasal cavity. ENKL had a lower Ann Arbor stage, and a better prognosis than diffuse large B-cell lymphoma (DLBLC).

Multiple synchronous neoplasms in the ipsilateral parotid gland: case series.

BACKGROUND: Multiple synchronous neoplasms in the ipsilateral parotid gland are very rare. We intend to analyze the clinical characteristics and treatment results of multiple synchronous neoplasms in the ipsilateral parotid gland managed at our hospital. METHODS: The study included 21 patients of multiple synchronous neoplasms in the ipsilateral parotid gland from January 2010 to December 2020. RESULTS: Twenty-one cases of multiple synchronous neoplasms in the ipsilateral parotid gland were identified among 994 cases of parotid surgery, with a frequency of 2.1%. Multiple synchronous neoplasms in the ipsilateral parotid gland occurred in all males and one female. Except for one case, all of them involved histopathologic neoplasms. Warthin tumor (n=19, 90.5%) was the most common. Among 21 lesions, there were 9 patients of right parotid gland, 4 patients of left parotid gland, and 4 patients of bilateral parotid gland. The main symptoms were slowly enlarging mass within the parotid gland (n=20), followed by incidental detection (n=1). CONCLUSIONS: Clinicians should be aware of the possibility of multiple synchronous neoplasms in the ipsilateral parotid gland. Preoperative imaging tests, clinical examinations, and careful palpation during surgery are important for accurate diagnosis and treatment.

Length of the Most Distal End of Head and Neck Defect to Axilla Affects Survival of Pedicled Latissimus Dorsi Flap.

OBJECTIVES: The objective of this study was to determine factors affecting the survival of pedicled latissimus dorsi (LD) flap. MATERIALS AND METHODS: Medical records of 20 pedicled LD flap patients for head and neck reconstruction by a single operator from 2015 to 2019 in a tertiary hospital were reviewed. Factors including flap size and pedicle's length from the most distal end of the flap to the axilla (Fp) and from the most distal end of the defect to the axilla (Dfp) were assessed. Partial flap loss requiring procedures and total loss were considered as failure. Descriptive statistics, the Pearson χ 2 test, and linear-by-linear association analysis were performed. RESULTS: Seventy percent of patients showed success. There was no significant difference in various factors including preoperative body mass index, underlying diseases such as hypertension and diabetes, preoperative treatment either radiation or chemotherapy, lab results, and operation time between the survival and the failure group. Rotation arc (Dfp/Fp) showed significant difference between 2 groups ( P =0.001). Unlike Fp, Dfp tend to be shorter on the success group ( P =0.053). CONCLUSIONS: Low rotation arc through shorter Dfp affects survival of pedicled LD flap significantly.