Introduction: The optimal timing for initiating and discontinuing oral propranolol therapy for infantile hemangioma has not yet been established. However, there are extensive reports on the use of propranolol for treating conditions other than infantile hemangioma.
 Methods: We conducted a cross-disciplinary literature review of adverse events associated with propranolol treatment in pediatric diseases other than infantile hemangioma to assess the risk of oral administration.
 Results: Propranolol was administered to patients with hypertension, cardiac disease, and retinopathy of prematurity. Adverse events, including bradycardia, wheezing, and hypoglycemia, occurred at a frequency of 10%-15%. These events required discontinuation, dosage adjustments, and specific treatments. Various recommendations from different medical specialties have been made to maximize the efficacy and safety of propranolol.
 Conclusion: To ensure the safety of propranolol treatment in neonates, continuous monitoring of vital signs and dosage adjustments are necessary during early propranolol administration. Adherence to medication, management of oral caloric intake, and addressing adverse events are crucial for cases where treatment continues beyond the involution phase of infantile hemangioma. These findings provide valuable insights for shaping treatment strategies for infantile hemangioma patients.

 Inverted nipples in men are rare, with most cases being congenital. In acquired cases, causes include breast cancer, trauma, and scarring from subareolar abscesses. Subareolar abscesses are rare in male patients, and an inverted nipple may serve as either a trigger or a secondary change. Cases with repeated subareolar abscesses require simultaneous treatment of the inverted nipple and abscess. Herein, we report a severe case of an inverted nipple with a subareolar abscess on a 43-year-old man's left breast. His inverted nipple, present for 4 or 5 years, was initially repaired manually, but later worsened, becoming difficult to reposition. He began experiencing nipple discomfort and observed redness around the nipple. We used the Sakai technique to raise the nipple through an incision, which is often used in severe cases. The patient was satisfactorily treated. The choice of surgical technique should be based on the severity of the disease. At one year postoperatively, neither subareolar abscess recurrence nor nipple retraction was observed.

 A 28-year-old man underwent resection of a suspected recurrent pleomorphic adenoma of the hard palate, including the oral mucosa, maxilla, palatine bone, and nasal mucosa. To cover the 20 mm×20 mm hard palate defect, reconstructive surgery was performed using an inferior turbinate composite tissue graft and a palatal mucoperiosteal flap. The nasal side was reconstructed with the inferior turbinate composite tissue graft and the oral side with the palatal mucoperiosteal flap, achieving a two-layer reconstruction. Six months postoperatively, both the inferior turbinate graft and mucoperiosteal flap were fully integrated, and no recurrence of the fistula was observed. The morphology of the hard palate and its functions, such as mastication, swallowing, and articulation, were preserved. Our findings suggest that this method is effective for palatal defects smaller than the inferior turbinate.

 Parosteal osteosarcoma is classified as a low-grade osteosarcoma. Most reported cases involve the femur and other long bones, whereas rib involvement is extremely rare. The prognosis is relatively favorable. The primary treatment is surgical resection.
 A 57-year-old man presented with a subcutaneous mass and pain in the right back. Imaging findings suggested a malignant tumor. Biopsy revealed parosteal osteosarcoma arising from the ribs. After resection of the enlarged tumor, chest wall reconstruction with a latissimus dorsi musculocutaneous flap was performed. No recurrence has been observed 30 months after surgery. Impairment of postoperative respiratory function was not observed.

 Vibration amplification of sound energy at resonance (VASER^®) is a third-generation internal ultrasonic liposuction technology. VASER^® is less likely to damage blood vessels, nerves, or other tissues; thus, it is less stressful for the body because of reduced blood loss. Herein, we report a case of a 23-year-old woman who developed a serious complication due to bleeding after liposuction of the face line using VASER^® technology at a nearby cosmetic surgery clinic. After returning home, the patient experienced dyspnea and was brought to the emergency department. Upon arrival, neck swelling and hematoma were observed. Emergency tracheal intubation and hematoma removal were performed. The patient was treated by members of the emergency, otolaryngology, anesthesiology, and plastic surgery departments. The patient survived.
 VASER^® offers advantages such as reduced bleeding and safer surgical techniques. However, careful management of perioperative blood pressure and pain, as well as thorough postoperative compression, are essential to prevent hematoma formation.